Tootfinder

Off-resonant light-induced topological phase transition and thermoelectric transport in semi-Dirac materials
Vassilios Vargiamidis, P. Vasilopoulos, Neophytos Neophytou
https://arxiv.org/abs/2507.08168

Off-resonant light-induced topological phase transition and thermoelectric transport in semi-Dirac materials
We show that a semi-Dirac (SD) system with an inversion symmetry breaking mass exhibits a topological phase transition when irradiated with off-resonant light. Using Floquet theory, we derive the band structure, Chern numbers, phase diagram, and we show that as the light intensity is swept at fixed mass, the SD system undergoes normal-Chern-normal insulator transition. Along the phase boundaries we observe single semi-Dirac-cone (SSDC) semimetal states in which one SD cone is gapless and the ot…

Investigating the Impact of Higher-Order Phase Transitions in Binary Neutron-Star Mergers
P. Hammond, A. Clevinger, M. Albino, V. Dexheimer, S. Bernuzzi, C. Brown, W. Cook, B. Daszuta, J. Fields, E. Grundy, C. Provid\^encia, D. Radice, A. Steiner
https://arxiv.org/abs/2508.10698

Investigating the Impact of Higher-Order Phase Transitions in Binary Neutron-Star Mergers
In this paper we investigate quark deconfinement in neutrons stars and their mergers, focusing on the effects of higher orders for the phase transition between hadronic and quark matter. The different descriptions we use to describe matter microscopically contain varying particle degrees of freedom, including nucleons, hyperons, Delta baryons, and light and strange quarks. We use tabulated equations of state from the CompOSE database in which the quark deconfinement phase transition is describe…

A Prediction for Maximum Supercooling in SU(N) Confinement Transition
Prateek Agrawal, Gaurang Ramakant Kane, Vazha Loladze, John March-Russell
https://arxiv.org/abs/2508.10091 …

A Prediction for Maximum Supercooling in SU(N) Confinement Transition
The thermal confinement phase transition (PT) in $SU(N)$ Yang-Mills theory is first-order for $N\geq 3$, with bounce action scaling as $N^2$. Remarkably, lattice data for the action include a small coefficient whose presence likely strongly alters the PT dynamics. We give evidence, utilizing insights from softly-broken SUSY YM models, that the small coefficient originates from a deconfined phase instability just below the critical temperature. We predict the maximum achievable supercooling in $…

Boundary-induced Phases in the Dissipative Dicke Lattice Model
Peng-Fei Wei, Yilun Xu, Fengxiao Sun, Qiongyi He, Peter Rabl, Zhihai Wang
https://arxiv.org/abs/2508.10296 https:/…

Boundary-induced Phases in the Dissipative Dicke Lattice Model
The superradiant phase transition in the dissipative Dicke lattice model, driven by on-site collective atom-photon interactions and inter-site photon hopping, is a cornerstone of nonequilibrium quantum many-body physics. However, little is still known about the influence of boundaries in experimental achievable systems of finite size. Here we investigate the dissipative superradiant phase transition in the Dicke lattice model with a small number of sites and reveal a striking sensitivity of thi…

Inside-Out Planet Formation. VIII. Onset of Planet Formation and the Transition Disk Phase
Xiao Hu, Jonathan C. Tan
https://arxiv.org/abs/2508.10755 https://

Inside-Out Planet Formation. VIII. Onset of Planet Formation and the Transition Disk Phase
Inside-Out Planet Formation (IOPF) is a theory of {\it in situ} formation via pebble accretion of close-in Earth to Super-Earth mass planets at the pressure maximum associated with the dead zone inner boundary (DZIB), whose location is set initially by thermal ionization of alkali metals at $\sim1,200\:$K. With midplane disk temperatures determined by viscous accretional heating, the radial location of the DZIB depends on the accretion rate of the disk. Here, we investigate the ability of pebbl…

Structural transition and possible pressure-induced superconductivity in a suboxide La$_5$Pb$_3$O
Jiaqiang Yan, David Singh, Bayram Saparov, Huibo Cao, Yejun Feng, Jinguang Cheng, Yoshia Uwatoko, David Mandrus
https://arxiv.org/abs/2508.10080

Structural transition and possible pressure-induced superconductivity in a suboxide La$_5$Pb$_3$O
Here we report a structural phase transition and its possible competition with superconductivity in the suboxide La$_5$Pb$_3$O. Upon cooling through $T_t$ = 225 K, La$_5$Pb$_3$O transforms from a high-temperature I4/mcm to a low-temperature P4/ncc structure in which La - Pb dimerization along the c-axis occurs. This transition is accompanied by anomalies in the temperature dependence of electrical resistivity and specific heat. High-pressure electrical transport measurements reveal that hydrost…

Continuous topological phase transition between $\mathbb{Z}_2$ topologically ordered phases
Qi Zhang, Wen-Tao Xu
https://arxiv.org/abs/2508.08376 https://a…

Continuous topological phase transition between $\mathbb{Z}_2$ topologically ordered phases
Topological phase transitions beyond anyon condensation remain poorly understood. A notable example is the transition between the toric code (TC) and double semion (DS) phases, which has two distinct $\mathbb{Z}_2$ topological orders in (2 + 1)D. Previous studies reveal that the transition between them can be either first order or via an intermediate phase, thus the existence of a directly continuous transition between them remains a long-standing problem. Motivated by the fact that both phases…

Machine-Learning-enabled ab initio study of quantum phase transitions in SrTiO$_3$
Jonathan Schmidt, Nicola A. Spaldin
https://arxiv.org/abs/2508.10735 https://

Machine-Learning-enabled ab initio study of quantum phase transitions in SrTiO$_3$
We use the self-consistent harmonic approximation (SSCHA) with machine learning interatomic potentials to calculate the effect of $^{18}$O substitution on the properties of quantum paraelectric SrTiO$_3$ (STO). We find that calculations including both quantum and anharmonic effects are able to reproduce the experimentally observed isotope effect, in which replacement of $^{16}$O by $^{18}$O induces the ferroelectric state, and demonstrate that the ferroelectric phase transition in ST$^{18}$O ca…

Sharp phase transition in the grand canonical $\Phi^3$ measure at critical chemical potential
Nikolay Barashkov, Kihoon Seong, Philippe Sosoe
https://arxiv.org/abs/2508.08427 ht…

Sharp phase transition in the grand canonical $Φ^3$ measure at critical chemical potential
We study the phase transition and critical phenomenon for the grand canonical $Φ^3$ measure in two-dimensional Euclidean quantum field theory. The study of this measure was initiated by Jaffe, Bourgain, and Carlen--Fröhlich--Lebowitz, primarily in regimes far from criticality. We identify a critical chemical potential and show that the measure exhibits a sharp phase transition at this critical threshold. At the critical threshold, the analysis is based on establishing the correlation decay of…

Dark, deep, deconfining: Phase transitions in neutron stars as powerful probes of hidden sectors
Aryaman Bhutani, Nirmal Raj, Zenia Zuraiq
https://arxiv.org/abs/2507.08076

Dark, deep, deconfining: Phase transitions in neutron stars as powerful probes of hidden sectors
The interiors of neutron stars enjoy ideal conditions for the conversion of hadrons to a strange quark phase, theorized to be the stablest form of matter. Though numerous astrophysical means to prompt such a deconfinement phase transition have been suggested, they may be pre-empted by a large energy barrier for nucleation of quark matter droplets. We will show that interactions of hidden sectors of particles with nucleons may surmount the barrier if it exceeds deca-GeV energies, and spark a pha…

Lyapunov Exponents, Phase Transitions, and Chaos Bound of ModMax AdS Black Holes
Gorima Bezboruah, Mozib Bin Awal, Prabwal Phukon
https://arxiv.org/abs/2508.07832 https://

Lyapunov Exponents, Phase Transitions, and Chaos Bound of ModMax AdS Black Holes
We study the thermodynamic phase transition of ModMax anti-de Sitter (AdS) black holes using Lyapunov exponents of massless and massive particles in unstable circular orbits. Our results demonstrate that the thermal profile of the Lyapunov exponent serves as an efficient probe of the black hole's phase structure. We calculate the discontinuity in the Lyapunov exponent across the transition and show that it acts as an order parameter, exhibiting a critical exponent $δ=1/2$ in the vicinity of th…

Dicke-Stark model, coherent state space, superradiant phase transition, equilibrium state, quantum entanglement
Weilin Wang, Ronghai Liu, Fangcheng Qiu, Mingshu Zhao, Jinying Ma, Zhanyuan Yan
https://arxiv.org/abs/2508.08860

Dicke-Stark model, coherent state space, superradiant phase transition, equilibrium state, quantum entanglement
In this study, the energy spectrum and thermal equilibrium states of the finite-size Dicke-Stark model were numerically obtained within the extended coherent state space by solving the dressed master equation for strongly coupled light-atom systems. The critical point of the superradiant phase transition in the infinite-size Dicke-Stark model was analytically derived using the mean-field approach and confirmed with numerical calculation. Under thermal equilibrium conditions, analyses of the neg…

Trispectrum in Extended USR Model with Transition to SR
Hassan Firouzjahi, Amin Nassiri-Rad
https://arxiv.org/abs/2509.09608 https://arxiv.org/pdf/2509.096…

Trispectrum in Extended USR Model with Transition to SR
We study the trispectrum in a two-phase USR-SR setup of inflation in which the USR stage is extended in the initial phase of inflation while the second stage of inflation proceeds via a slow-roll phase. A key role is played by the sharpness parameter which controls how quickly the system reaches the final attractor phase after the USR stage. We employ both $δN$ and in-in formalisms and calculate trispectrum and the corresponding dimensionless parameters $g_{NL}$ and $τ_{NL}$. We show that bot…

Partial suppression of magnetism in the square lattice SU(3) Hubbard model
Samuel Bird, Sebastian Huber, Jannes Nys
https://arxiv.org/abs/2507.08073 https:…

Partial suppression of magnetism in the square lattice SU(3) Hubbard model
The SU(N) Hubbard model is a natural extension of the SU(2) model. However, even the N=3 case remains poorly understood. We report a substantially new ground-state phase diagram of the square lattice SU(3) Fermi-Hubbard model. Using a backflow ansatz, we identify strong signatures of a Mott transition and a subsequent magnetic transition, and the suppression of a previously predicted magnetic phase. We study the hole-doped model, identifying a transition from magnetic to paramagnetic behavior i…

Critical dynamics governs deep learning
Simon Vock, Christian Meisel
https://arxiv.org/abs/2507.08527 https://arxiv.org/pdf/2507.0852…

Critical dynamics governs deep learning
Artificial intelligence has advanced rapidly through larger and deeper neural networks, yet fundamental questions remain about how to optimize network dynamics for performance and adaptability. This study shows that deep neural networks (DNNs), like biological brains, perform optimally when operating near a critical phase transition - poised between active and inactive dynamics. Drawing from physics and neuroscience, we demonstrate that criticality provides a unifying principle linking structur…

Capturing quantum phase transition in the ultraviolet region by holography
Fang-Jing Cheng, Zhe Yang, Yi Ling, Jian-Pin Wu, Zhou-Jian Cao, Peng Liu
https://arxiv.org/abs/2507.07899

Capturing quantum phase transition in the ultraviolet region by holography
We reveal for the first time that ultraviolet (UV) observables can diagnose quantum phase transitions (QPTs). In a class of holographic models exhibiting metal-insulator transitions, we study two types of UV observables -- high-frequency conductivity and short-range entanglement. Remarkably, we find that the derivatives of these UV observables exhibit extrema near the quantum critical point. Analytical results show these critical behaviors arise from the deformation of the asymptotic bulk geome…

Phase transition of hot dense QCD Matter from a refined holographic EMD model
Zhibin Li, Fei Wang
https://arxiv.org/abs/2507.09113 https://

Phase transition of hot dense QCD Matter from a refined holographic EMD model
In this study, we begin by delineating the Einstein-Maxwell-Dilaton (EMD) model within the holographic QCD framework and deriving the equation of state through holographic renormalization. Subsequently, we utilize the Wald method to determine the first law of thermodynamics for a five-dimensional black hole, thereby confirming the alignment of our EMD model with the thermodynamics of the grand canonical ensemble in the boundary field theory. By employing the $n-2$ form in the Wald method, we pr…

Polarization dynamics in vertical-cavity surface emitting lasers
Thorsten Ackemann, Markus Sondermann
https://arxiv.org/abs/2507.08672 https://

Polarization dynamics in vertical-cavity surface emitting lasers
Experiments and their interpretation on polarization dynamics and polarization switching in vertical-cavity surface-emitting lasers operated in the fundamental transverse mode regime are reviewed. Important observations are switching events to a mode with the lower unsaturated gain and the existence of elliptically polarized dynamical transition states after the destabilization of the low-frequency polarization mode. The observations demonstrate the need to consider explicitly the phase propert…

Deformation of semi-circle law for the correlated time series and Phase transition
Masato Hisakado, Takuya Kaneko
https://arxiv.org/abs/2508.07192 https://…

Deformation of semi-circle law for the correlated time series and Phase transition
We study the eigenvalue of the Wigner random matrix, which is created from a time series with temporal correlation. We observe the deformation of the semi-circle law which is similar to the eigenvalue distribution of the Wigner-Lèvy matrix. The distribution has a longer tail and a higher peak than the semi-circle law. In the absence of correlation, the eigenvalue distribution of the Wigner random matrix is known as the semi-circle law in the large $N$ limit. When there is a temporal correlatio…

Quantifying the liquid-liquid transition in cold water/glycerol mixtures by ih-RIDME
Sergei Kuzin, Maxim Yulikov
https://arxiv.org/abs/2509.08633 https://a…

Quantifying the liquid-liquid transition in cold water/glycerol mixtures by ih-RIDME
Water/glycerol mixtures are common for experiments with biomacromolecules at cryogenic temperatures due to their vitrification properties. Above the glass transition temperature, they undergo liquid-liquid phase separation. Using the novel EPR technique called intermolecular hyperfine Relaxation-Induced Dipolar Modulation Enhancement (ih-RIDME), we quantified the molar composition in frozen water/glycerol mixtures with one or the other component deuterated after the phase transition. Our experi…

Nonogram: Complexity of Inference and Phase Transition Behavior
Aaron Foote, Danny Krizanc
https://arxiv.org/abs/2507.07283 https://a…

Nonogram: Complexity of Inference and Phase Transition Behavior
Nonogram is a popular combinatorial puzzle (similar in nature to Sudoku or Minesweeper) in which a puzzle solver must determine if there exists a setting of the puzzle parameters that satisfy a given set of constraints. It has long been known that the problem of deciding if a solution exists is a computationally difficult problem. Despite this fact, humans still seem to enjoy playing it. This work aims to reconcile these seemingly contradictory facts by (1) analyzing the complexity of the infer…

Low voltage user phase reconfiguration as a planning problem
Sari Kerckhove, Marta Vanin, Reinhilde D'hulst, Dirk Van Hertem
https://arxiv.org/abs/2507.05910

Low voltage user phase reconfiguration as a planning problem
Considerable levels of phase imbalance in low voltage (LV) distribution networks imply that grid assets are suboptimally utilized and can cause additional losses, equipment failure and degradation. With the ongoing energy transition, the installation of additional single-phase distributed energy resources may further increase the phase imbalance if no countermeasures are taken. Phase reconfiguration is a cost-effective solution to reduce imbalance. However, dynamic reconfiguration, through re…

Characterizing Topological Phase Transition in Non-Hermitian Systems
ZhaoXiang Fang, Yongxu Fu, Guang-Can Guo, Long Xiong
https://arxiv.org/abs/2508.08316 https://

Characterizing Topological Phase Transition in Non-Hermitian Systems
We propose and present a concept of Topological Distance (TD), obtained from the integration of trace distance over the generalized Brillouin zone, in order to characterize the topological transitions of non-Hermitian systems. Specifically, such a quantity is used to measure the overall dissimilarity between eigen wavefunctions upon traversing all possible matter states, and confirms the phase boundaries through observing the divergences of both TD and its partial derivatives; we clarify its or…

$\bf A^2$-robust superradiant phase transition in hybrid qubit-cavity optomechanics
Gang Liu, Wei Xiong
https://arxiv.org/abs/2508.08024 https://arxiv.org/…

$\bf A^2$-robust superradiant phase transition in hybrid qubit-cavity optomechanics
The $\mathbf{A}^2$ term presents a fundamental challenge to realizing the superradiant phase transition (SPT) in cavity quantum electrodynamics. Here, we propose a hybrid quantum system enabling SPT regardless of the presence of the $\mathbf{A}^2$ term. The system consisting of a qubit, a mechanical mode, and an optical cavity, where the qubit and mechanical mode constitute a quantum Rabi model, while the mechanical mode and cavity form an optomechanical system. Crucially, the auxiliary cavity …

$\textit{Ab initio}$ Exact Calculation of Strongly-Correlated Nucleonic Matter
Rongzhe Hu, Shaoliang Jin, Xin Zhen, Haoyu Shang, Junchen Pei, Furong Xu
https://arxiv.org/abs/2508.09252

$\textit{Ab initio}$ Exact Calculation of Strongly-Correlated Nucleonic Matter
Dense nucleonic matter is of vital importance for understanding compact stars and inferring the transition into deconfined quark phase. We present the $\textit{ab initio}$ exact calculations of infinite nucleonic matter with the state-of-the-art full configuration-interaction quantum Monte Carlo (FCIQMC) method, enabling us to rigorously benchmark many-body methods and assess the degree to which the nucleonic matter is strongly correlated. This method has been numerically testified to exact dia…

Super-heated first order phase transitions
Giulio Barni, Andrea Tesi
https://arxiv.org/abs/2508.08362 https://arxiv.org/pdf/2508.08362

Super-heated first order phase transitions
We study first order phase transitions that occur when the temperature of the system increases and we identify the conditions that lead to super-heating, a phase where the system can heat up arbitrarily. First order phase transitions with super-heating behave as inverse transitions. We quantify these claims by studying a prototypical example of a dark sector with a large number of interacting light bosons at finite temperature. Depending upon thermalisation, a super-heated phase transition in c…

Bosonic realization of SU(3) chiral Haldane phases
Linpu Zhang, Junjun Xu
https://arxiv.org/abs/2509.09083 https://arxiv.org/pdf/2509.09083

Bosonic realization of SU(3) chiral Haldane phases
We give a bosonic realization of the SU(3) antiferromagnetic Heisenberg (AFH) chain in the alternating conjugate representation, and study its phase diagram as a function of staggered interactions and anisotropy along the $T^3$ and $T^8$ directions. Unlike the SU(2) case, we observe a chiral-reversed quantum phase transition, where each competing phase is adiabatically connected to one of the chiral Haldane phases predicted in the SU(3) AFH chain with local adjoint representation. In the vicini…

Time-dependent correlations of the Edwards-Anderson order parameter above the spin-glass transition
Jingjin Song, Sheena K. K. Patel, Rupak Bhattacharya, Yi Yang, Sudip Pandey, Xiao M. Chen, Eric Lee-Wong, Kalyan Sasmal, M. Brian Maple, Eric E. Fullerton, Sujoy Roy, Claudio Mazzoli, Chandra M. Varma, Sunil K. Sinha
https://arxiv.org/abs/25…

Time-dependent correlations of the Edwards-Anderson order parameter above the spin-glass transition
In 1975 Edwards and Anderson introduced a new paradigm that interacting quenched systems, such as a spin-glass, have a phase transition in which long time memory of spatial patterns is realized without spatial correlations. We show here that the information about the time-dependent correlations above the spin-glass transition are embedded in the four spin correlations of the intensity of speckle pattern. This encodes the spin-orientation memory and can be measured by the technique of resonant m…

Monitoring for a Phase Transition in a Time Series of Wigner Matrices
Nina D\"ornemann, Piotr Kokoszka, Tim Kutta, Sunmin Lee
https://arxiv.org/abs/2507.04983

Monitoring for a Phase Transition in a Time Series of Wigner Matrices
We develop methodology and theory for the detection of a phase transition in a time-series of high-dimensional random matrices. In the model we study, at each time point \( t = 1,2,\ldots \), we observe a deformed Wigner matrix \( \mathbf{M}_t \), where the unobservable deformation represents a latent signal. This signal is detectable only in the supercritical regime, and our objective is to detect the transition to this regime in real time, as new matrix--valued observations arrive. Our approa…

On the estimation of solar wind velocity under varying solar activity conditions using Akatsuki measurements
Keshav Aggarwal, R. K. Choudhary, Abhirup Datta, Takeshi Imamura
https://arxiv.org/abs/2508.06381

On the estimation of solar wind velocity under varying solar activity conditions using Akatsuki measurements
We present an analysis of solar wind dynamics based on Doppler spectral width measurements of X-band radio signals from the Japanese Akatsuki spacecraft. The dataset includes two solar conjunction occultation experiments conducted in 2016 and 2022, capturing the transition from the descending phase of Solar Cycle 24, a period of low solar activity, to the ascending phase of Solar Cycle 25, which exhibited moderate to intense activity. Our study demonstrates the utility of this technique for est…

Stabilization of the first-order phase transition character and Enhancement of the Electrocaloric Effect by NBT substitution in BaTiO$_3$ ceramics
M. Karakaya, I. Gurbuz, L. Fulanovic, U. Adem
https://arxiv.org/abs/2507.07290

Stabilization of the first-order phase transition character and Enhancement of the Electrocaloric Effect by NBT substitution in BaTiO$_3$ ceramics
The electrocaloric properties of BaTiO$_3$-based lead-free ferroelectric materials have been widely investigated. One approach to achieving a large electrocaloric response is to exploit the substantial polarization change associated with the first-order phase transition at the Curie temperature. Following this strategy, we investigated the electrocaloric response of (1$-x$)BaTiO$_3$-$x$Na$_{0.5}$Bi$_{0.5}$TiO$_3$ (BT-NBT) ceramics for x = 0.05, 0.10, 0.20, and 0.30. In this BT-rich region of th…

Denjoy's anachronistic topological viewpoint on Aubry transition
O. C\'epas, G. Masbaum, P. Qu\'emerais
https://arxiv.org/abs/2507.06915 https:…

Denjoy's anachronistic topological viewpoint on Aubry transition
The Aubry transition is a phase transition between two types of incommensurate states, originally described as a transition by ``breaking of analyticity''. Here we present Denjoy's (anachronistic) viewpoint, who almost hundred years ago described certain mathematical properties of circle homeomorphisms with irrational rotation numbers. The connection between the two lies in the existence of a change of variables from the incommensurate ground state variables to new simple phase variables that r…

Heat conduction with phase change in soils with macro-pores, snow, and cryoconite. Part I: unified model derivation and examples
Malgorzata Peszynska, Praveeni Mathangadeera, Madison Phelps, Forrest Felsch, Noah Unger-Schulz
https://arxiv.org/abs/2508.05916

Heat conduction with phase change in soils with macro-pores, snow, and cryoconite. Part I: unified model derivation and examples
In this paper we extend models of thermal conduction with phase transition from micro- to macro-scale. Such models were previously developed for soils in permafrost regions from pore to Darcy scale, and the Darcy scale models compare well to empirical relationships. The new general model blends soil model with bulk water model and thus works well for the soils with macro-pores; it also applies to new context including modeling thermal conduction in the snow and in cryoconite, and it is consiste…

Ionization/dissociation-driven first order phase transitions: on a new class of first order phase transitions
Genri Norman, Ilnur Saitov
https://arxiv.org/abs/2509.01273 https:/…

Ionization/dissociation-driven first order phase transitions: on a new class of first order phase transitions
In this work, we compare various models for describing the phase transition of the fluid hydrogen into a conducting state, including both chemical models of plasma and first-principle simulations within the framework of the density functional theory (DFT). The comparison of the results indicates the plasma nature of the phase transition in warm dense hydrogen. We propose a concept of a new class of first-order phase transitions: ionization or dissociation-driven phase transitions, with which th…

Relativistic Mott transition, high-order van Hove singularity, and mean-field phase diagram of twisted double bilayer WSe${}_2$
Bilal Hawashin, Julian Kleeschulte, David Kurz, Michael M. Scherer
https://arxiv.org/abs/2509.09398

Relativistic Mott transition, high-order van Hove singularity, and mean-field phase diagram of twisted double bilayer WSe${}_2$
Recent experiments on twisted double bilayer tungsten diselenide have demonstrated that moiré semiconductors can be used to realize a relativistic Mott transition, i.e., a quantum phase transition from a Dirac semimetal to a correlated insulating state, by twist-angle tuning. In addition, signatures of van Hove singularities were observed in the material's moiré valence bands, suggesting further potential for the emergence of strongly-correlated states in this moiré semiconductor. Based on a…

Phase transition for Loewner evolutions with complex linear drivers
Luis Brummet
https://arxiv.org/abs/2509.05726 https://arxiv.org/pdf/2509.05726

Phase transition for Loewner evolutions with complex linear drivers
We study deterministic Loewner evolutions on the complex plane driven by complex-valued functions. This model can be viewed as a generalization of real-driven Loewner evolutions in the upper half-plane, or as the deterministic analogue of complex-driven Schramm-Loewner evolutions. First, we contribute to the already known theory of such evolutions. We establish a sufficient condition for drivers in the $C^1$-class to create a two-sided simple curve. By constructing a counterexample in the $C^0$…

Epidemic threshold and localization of the SIS model on directed complex networks
Vin\'icius B. M\"uller, Fernando L. Metz
https://arxiv.org/abs/2508.06332 https://

Epidemic threshold and localization of the SIS model on directed complex networks
We study the susceptible-infected-susceptible (SIS) model on directed complex networks within the quenched mean-field approximation. Combining results from random matrix theory with an analytic approach to the distribution of fixed-point infection probabilities, we derive the phase diagram and show that the model exhibits a nonequilibrium phase transition between the absorbing and endemic phases for $c \geq λ^{-1}$, where $c$ is the mean degree and $λ$ the average infection rate. Interestingl…

Nagaoka Instability and Quantum Phase Transition via Kinetic Frustration Control
Prakash Sharma, Yang Peng, Donna N. Sheng, Hitesh J. Changlani, Yao Wang
https://arxiv.org/abs/2508.08410

Nagaoka Instability and Quantum Phase Transition via Kinetic Frustration Control
We investigate the Nagaoka-Thouless (NT) ferromagnetic instability in the strongly interacting $t$-$t'$ Hubbard model by continuously breaking particle-hole symmetry on a tunable square-triangular lattice geometry. We use an analytic approach to show that the fully spin-polarized state becomes unstable to a metastable spin-polaron when the kinetic frustration $t'/t$ exceeds a critical, dimension-dependent value. Large-scale density matrix renormalization group (DMRG) simulations reveal a quantu…

Non-Gaussian Phase Transition and Cascade of Instabilities in the Dissipative Quantum Rabi Model
Mingyu Kang, Yikang Zhang, Kenneth R. Brown, Thomas Barthel
https://arxiv.org/abs/2507.07092

Non-Gaussian Phase Transition and Cascade of Instabilities in the Dissipative Quantum Rabi Model
The open quantum Rabi model describes a two-level system coupled to a harmonic oscillator. A Gaussian phase transition for the nonequilibrium steady states has been predicted when the bosonic mode is soft and subject to damping. We show that oscillator dephasing is a relevant perturbation, which leads to a non-Gaussian phase transition and an intriguing cascade of instabilities for $k$-th order bosonic operators. For the soft-mode limit, the equations of motion form a closed hierarchy and spect…

Flow transition of liquid-liquid two-phase Taylor-Couette flow with axial flow
Hayato Masuda, Yuta Kikuchi, Hiroyuki Iyota
https://arxiv.org/abs/2508.21362 https://

Flow transition of liquid-liquid two-phase Taylor-Couette flow with axial flow
A liquid-liquid two-phase Taylor-Couette flow is of fundamental and practical importance in multiphase flow systems. This study investigates the flow transitions in such a system with constant axial flow and gradually increased rotation of the inner cylinder. To clarify the effect of continuous-phase viscosity on flow transitions, several concentrations of glycerol-water solutions were employed as the continuous phase, while soybean oil was used as the dispersed phase. Visualization experiments…

Replaced article(s) found for math-ph. https://arxiv.org/list/math-ph/new
[1/1]:
- Phase Transition in Long-Range $q-$state Models via Contours. Clock and Potts Models with Fields
Lucas Affonso, Rodrigo Bissacot, Gilberto Faria, Kelvyn Welsch

Dimensionality-induced dynamical phase transition in the large deviation of local time density for Brownian motion
Ruofei Yan, Hanshuang Chen
https://arxiv.org/abs/2508.05956 ht…

Dimensionality-induced dynamical phase transition in the large deviation of local time density for Brownian motion
We study the fluctuation properties of the local time density, ${ρ_T} = \frac{1}{T}\int_0^T {δ( {r(t) - 1} )} dt$, spent by a $d$-dimensional Brownian particle at a spherical shell of unit radius, where $r(t)$ denotes the radial distance from the particle to the origin. In the large observation time limit, $T \to \infty$, the local time density $ρ_T$ obeys the large deviation principle, $P(ρ_T= ρ) \sim e^{-T I(ρ)}$, where the rate function $I(ρ)$ is analytic everywhere for $d\leq 4$. In …

An Efficient Phase-Transition Framework for Gate-Tunable Superconductivity in Monolayer WTe$_2$
F. Yang, G. D. Zhao, Y. Shi, L. Q. Chen
https://arxiv.org/abs/2509.08332 https://…

An Efficient Phase-Transition Framework for Gate-Tunable Superconductivity in Monolayer WTe$_2$
The recently reported gate-tunable superconductivity in monolayer WTe$_2$ exhibits several striking anomalies beyond the standard paradigm, including a contrasting carrier-density dependence of the transition temperature $T_c$ in weakly and strongly disordered regimes and more surprisingly, the sudden disappearance of superconducting fluctuations below a critical carrier density. To understand these features, we go beyond the mean-field theory to treat the superconducting gap and superfluid den…

Dynamical and structural properties of an absorbing phase transition: a case study from granular systems
Raphael Maire, Andrea Plati, Frank Smallenburg, Giuseppe Foffi
https://arxiv.org/abs/2507.06083

Dynamical and structural properties of an absorbing phase transition: a case study from granular systems
We investigate the dynamical and structural properties of absorbing phase transitions (APTs) within granular systems. Specifically, we examine a model for vibrofluidized systems of spherical grains, which transition from a state of pure vertical motion to a horizontal diffusive state upon increased density. Depending on the details of the system, we observe both continuous and discontinuous transitions in numerical simulations. We explain this using a theoretical analysis based on kinetic theor…

Field-induced reversible phase transition and negative differential resistance in In2Se3 ferroelectric semiconducting FETs
Jishnu Ghosh, Shubham Parate, Arup Basak, Binoy Krishna De, Krishnendu Mukhopadhyay, Abhinav Agarwal, Gopesh Kumar Gupta, Digbijoy Nath, Pavan Nukala
https://arxiv.org/abs/2509.09233

Field-induced reversible phase transition and negative differential resistance in In2Se3 ferroelectric semiconducting FETs
Indium selenide (In2Se3), a ferroelectric semiconductor, offers a unique platform for multifunctional nanoelectronics owing to the interplay between polarization dynamics, interlayer sliding, and structural polymorphism. Ferroelectric semiconductor field-effect transistors (FeS-FETs) provide an ideal architecture to harness this coupling. Here, we demonstrate gate-tunable negative differential resistance (NDR) with high peak-to-valley ratios and hysteretic output conductance in In2Se3 FeS-FETs.…

Gaussian curvature and Lyapunov exponent as probes of black hole phase transitions
Shi-Hao Zhang, Zi-Qiang Zhao, Zi-Yuan Li, Jing-Fei Zhang, Xin Zhang
https://arxiv.org/abs/2509.05103

Gaussian curvature and Lyapunov exponent as probes of black hole phase transitions
We study the Gaussian curvature of unstable null orbits. The Gaussian curvature exhibits multivaluedness near the phase transition point of a first-order phase transition. Numerical investigations of Reissner-Nordstrom Anti-de Sitter (RN-AdS), Hayward-AdS, and Hayward-Letelier-AdS black holes demonstrate that this geometric multivalued region coincides precisely with the spinodal region calculated by black hole thermodynamics. Using the known relation $K=-λ^2$ linking orbital geometry to chaot…

Parabolic Anderson Model in Hyperbolic Spaces and Phase Transition
Xi Geng, Cheng Ouyang
https://arxiv.org/abs/2507.05530 https://arx…

Parabolic Anderson Model in Hyperbolic Spaces and Phase Transition
Consider a Parabolic Anderson model (PAM) with Gaussian noise that is white in time and colored in space, where the spatial correlation decays polynomially with order $α$. In Euclidean spaces with dimension greater than $2$, it is well-understood that the critical value for $α$ is $2$. Specifically, for $α<2$, the second moment of the solution grows exponentially over time, while for $α>2$, there is a phase transition, from the second moment being uniformly bounded in time to exhibiting exp…

Laser Driven Bulk-to-Layered Phase Transition
Shuang Liu, Oren Cohen, Ofer Neufeld, Peng Chen
https://arxiv.org/abs/2508.04544 https://arxiv.org/pdf/2508.0…

Laser Driven Bulk-to-Layered Phase Transition
Laser-induced phase transitions offer pathways of phase transitions that are inaccessible by conventional stimuli. In this study, we conduct ab initio simulations to numerically demonstrate a novel laser-induced structural transformation: converting a bulk crystal into a layered van der Waals material using intense light pulses. The transition is driven by a nonlinear phononic mechanism, where selectively exciting polar and anti-polar phonon modes with polarized terahertz light breaks targeted …

Bubble Trouble: a Review on Electroweak Baryogenesis
Jorinde van de Vis, Jordy de Vries, Marieke Postma
https://arxiv.org/abs/2508.09989 https://arxiv.org/…

Bubble Trouble: a Review on Electroweak Baryogenesis
The origin of the universal asymmetry between matter and antimatter remains a mystery. Electroweak baryogenesis is a well-motivated mechanism for generating the asymmetry dynamically, using interesting features of the Standard Model. In addition, it relies on beyond-the-Standard Model physics active around the electroweak scale: new physics coupling to the Higgs to make the electroweak phase transition first order, and a new mechanism of CP violation. The relatively low energy scale at which el…

The 6H-Perovskite Dimer Lattice with Antiferromagnetic Interactions: Ba$_3$ARu$_2$O$_9$
Daniel M. Pajerowski, David A. Dahlbom, Daniel Phelan, Yu Li, Alexander I. Kolesnikov
https://arxiv.org/abs/2508.10676

The 6H-Perovskite Dimer Lattice with Antiferromagnetic Interactions: Ba$_3$ARu$_2$O$_9$
We investigate the magnetic behavior of the 6H-perovskite dimer lattice Ba$_3$Zn$_{1-x}$Ca$_x$Ru$_2$O$_9$ using analytical theory, density functional theory, inelastic neutron scattering, and modeling of historical magnetization and neutron-scattering data. A dimer mean-field theory built upon classical Luttinger-Tisza analysis generates a phase diagram revealing a transition from a nonmagnetic singlet to a finite-moment ground state as interdimer couplings increase. A (generalized) linear spin…

A New Boundary Condition on Reionization
Sarah Libanore, Ely D. Kovetz, Julian B. Munoz, Yonatan Sklansky, Emilie Th\'elie
https://arxiv.org/abs/2509.08886 https://

A New Boundary Condition on Reionization
The epoch of reionization (EoR) marks the last phase transition of hydrogen in our Universe, as it evolves from cold and neutral to hot and ionized in the intergalactic medium (IGM). While its endpoint and duration can be estimated from current observations, albeit with large uncertainties, there is no known avenue to constrain its onset. We propose a novel method based on the Pearson cross-correlation coefficient between 21-cm brightness temperature maps and line-intensity maps tracing star-fo…

Switching of a closed mobile vacancy based memristor, whose specific resistance linearly depends on local vacancy concentration
Irina V. Boylo, Konstantin L. Metlov
https://arxiv.org/abs/2508.09668

Switching of a closed mobile vacancy based memristor, whose specific resistance linearly depends on local vacancy concentration
The linear (proportional to local vacancy concentration) term in specific resistance of the material does not directly contribute to the change of memristor's total resistance when the vacancies are redistributed inside while keeping their total number constant. But it still changes kinetics of the vacancy drift under the influence of a passing electric current. These changes are especially significant in the presence of metal-insulator phase transition in the memristor's material. In this pape…

Driven dynamics of localization phase transition in the Aubry-Andr\'{e} model with initial gapless extended states
Xin-Yu Wang, Wen-Jing Yu, Yue-Mei Sun, Liang-Jun Zhai
https://arxiv.org/abs/2509.06358

Driven dynamics of localization phase transition in the Aubry-André model with initial gapless extended states
Recently, the driven dynamics of localization phase transitions have garnered growing interest. However, studies so far have mainly considered initial localized states, whose driven dynamics follow the Kibble-Zurek mechanism (KZM). In this study, we investigate the driven dynamics of the localization phase transition in the Aubry-André (AA) model starting from a gapless extended state, which violates the adiabatic-impulse scenario of KZM. By linearly driving the quasiperiodic potential strengt…

Direct determination of antiferroelectric-to-ferroelectric phase transition pathways in PbZrO$_3$ with Operando Electron Microscopy
Menglin Zhu, Michael Xu, Louis Alaerts, Hao Pan, Colin Gilgenbach, Geoffroy Hautier, Lane W. Martin, James M. LeBeau
https://arxiv.org/abs/2509.07194

Direct determination of antiferroelectric-to-ferroelectric phase transition pathways in PbZrO$_3$ with Operando Electron Microscopy
Under a sufficiently high applied electric field, a non-polar antiferroelectric material, such as \ce{PbZrO3}, can undergo a rapid transformation to a polar ferroelectric phase. While this behavior is promising for energy storage and electromechanical applications, a complete understanding of the atomic-scale mechanisms governing the phase transition remain elusive. Here, we employ \textit{operando} scanning transmission electron microscopy electric field biasing to directly resolve the antifer…

More on phase transitions in ${\cal N}$ = 2 massive gauge theories
Jeremias Aguilera Damia, Jorge G. Russo
https://arxiv.org/abs/2507.01837 https://…

More on phase transitions in ${\cal N}$ = 2 massive gauge theories
We study large $N$ phase transitions in $\mathcal{N}=2$ theories with gauge group $SU(N)$ and massive hypermultiplets in diverse representations. Using supersymmetric localization we identify cases where phase transitions occur. In particular, we consider deformations of UV superconformal fixed points by giving two different masses to the fundamental hypermultiplets, and show that these theories undergo a third-order phase transition at a critical value of the 't Hooft coupling. We also comment…

Pressure induced ferromagnetic to antiferromagnetic phase transition in transition metal chalcogenide Cr$_{3}$Te$_4$
Asish Kumar Mishra, Souvick Chakraborty, Bidisha Mukherjee, Mrinmay Sahu, Suvashree Mukherjee, Shubham Purwar, Harekrishna Bhunia, S. Thirupathaiah, Peter Liermann, Satyabrata Raj, Goutam Dev Mukherjee
https://arx…

Pressure induced ferromagnetic to antiferromagnetic phase transition in transition metal chalcogenide Cr$_{3}$Te$_4$
We have carried out a detailed high-pressure investigation on the strongly correlated transition metal chalcogenide $Cr_{3}Te_4$ using Raman spectroscopy and XRD, which is ferromagnetic and metallic at ambient conditions. We find that the monoclinic structure remains stable up to 30 GPa, the highest pressure studied. The Cr-Te bond length and octahedral volume decrease drastically up to 7.6 GPa pressure. The $A_{1g}$ Raman mode shows a red shift up to 7.6 GPa, and the $E_g$ Raman mode shows a s…

Emergence of continuously varying critical exponents in coupled map lattice as an effect of quenched disorder
Priyanka D. Bhoyar, Govindan Rangarajan, Prashant M. gade
https://arxiv.org/abs/2509.07529 …

Emergence of continuously varying critical exponents in coupled map lattice as an effect of quenched disorder
The transition to an absorbing phase in a spatiotemporal system is a well-investigated nonequilibrium dynamic transition. The absorbing phase transitions fall into a few universality classes, defined by the critical exponents observed at the critical point. We present a coupled map lattice (CML) model with quenched disorder in the couplings. In this model, spatial disorders are introduced in the form of asymmetric coupling with a larger coupling ($p$) to a neighbor on the right and a smaller co…

Phase transitions of boson stars in scalar-tensor theories
Hyat Huang, Burkhard Kleihaus, Jutta Kunz, Meng-Yun Lai, Eugen Radu, De-Cheng Zou
https://arxiv.org/abs/2509.05202 htt…

Phase transitions of boson stars in scalar-tensor theories
In scalar-tensor theories, compact objects may experience spontaneous scalarization. Recently, it was shown that matter-induced spontaneous scalarization of neutron stars is predominantly associated with a first-order phase transition. Here we consider matter-induced spontaneous scalarization of boson stars. Employing a repulsive quartic potential for the bosonic matter, we find only first-order phase transitions.

Variations of the crossover and first-order phase transition curve in modeling the QCD equation of state
Joseph I. Kapusta, Shensong Wan
https://arxiv.org/abs/2508.02845 https:/…

Variations of the crossover and first-order phase transition curve in modeling the QCD equation of state
Lattice QCD calculations have shown that the transition from hadrons to quarks and gluons is a rapid crossover at $T = 155-160$ MeV at vanishing chemical potential. Many model calculations show that the transition is first-order at sufficiently high baryon chemical potential. It is then natural to expect the existence of a critical point where the crossover and first-order phase transition lines meet. We show how to embed a phase boundary that terminates at the critical point in a smooth backgr…

Strain-tunable type-II to type-III & Gimbal nodal line transition in Imm2-phase of Cu$_2$SnS$_3$: An ab-initio study
Prakash Pandey, Sudhir K. Pandey
https://arxiv.org/abs/2507.07618

Strain-tunable type-II to type-III & Gimbal nodal line transition in Imm2-phase of Cu$_2$SnS$_3$: An ab-initio study
Topological nodal line semimetals (NLSMs) represent an intriguing quantum phase, opening new avenues in materials science for practical applications such as anisotropic transport devices, high-mobility conductors, unconventional thermoelectrics, and nonlinear optical devices. Recently, Cu$_2$SnS$_3$ has been theoretically proposed as a type-II NLSM, with its Fermi surface containing only one nodal ring. Here, we demonstrate how uniaxial, equi-biaxial, and equi-triaxial strains affect the nodal …

Numerical investigation of the equilibrium Kauzmann transition in a two-dimensional atomistic glass
Gerhard Jung, Misaki Ozawa, Giulio Biroli, Ludovic Berthier
https://arxiv.org/abs/2507.03590

Numerical investigation of the equilibrium Kauzmann transition in a two-dimensional atomistic glass
Dense liquids gradually transform into non-equilibrium amorphous solids as they pass through the experimental glass transition. Experimentally, ergodicity is lost because measurements are conducted within a finite time window. More than seventy years ago, Kauzmann posed a fundamental question: If experiments could run indefinitely, would there exist a critical temperature at which an ergodicity-breaking phase transition occurs? Random first-order transitions represent the modern theoretical fra…

Time-resolved measurement of Seebeck effect for superionic metals during structural phase transition
Shilin Li (Beijing Academy of Quantum Information Sciences), Hailiang Xia (Beijing Huihaoyu Intelligent Technology Co., Ltd), Takuma Ogasawara (Beijing Academy of Quantum Information Sciences), Liguo Zhang (Beijing Academy of Quantum Information Sciences), Katsumi Tanigaki (Beijing Academy of Quantum Information Sciences)

Time-resolved measurement of Seebeck effect for superionic metals during structural phase transition
We propose a new time (t)-resolved method of both vertical- and horizontal-temperature gradients in an orthogonal configuration (t-resolved T(t)-HVOT) to have real interpretations of the enhancement in thermoelectric Seebeck effect (SE) observed during the structural phase transition. We apply our new method to superionic-state semiconductors of p-type Cu2Se and n-type Ag2S. The experimental data differentiate the two types of enhancements during the phase transition: a colossal SE (Scolossal),…

Universal Long-Time Behavior of the Quantum Fisher Information in Dynamical Quantum Phase Transitions
J. Mumford, R. J. Lewis-Swan
https://arxiv.org/abs/2507.05579

Universal Long-Time Behavior of the Quantum Fisher Information in Dynamical Quantum Phase Transitions
We investigate dynamical quantum phase transitions (DQPTs) in quantum systems that possess well-defined classical limits, focusing on the spinor Bose-Einstein condensate and the Lipkin-Meshkov-Glick model. We diagnose the DQPTs with the long-time average of the quantum Fisher information (QFI) showing that it abruptly changes at the transition point. Using mean-field and semiclassical approximations, we demonstrate that the long-time average of the QFI reveals universal behavior that persists a…

Quasi-Normal Modes and Nonlinear Electrodynamics in Black Hole Phase Transitions
Zi-Yu Hou, Yu-Qi Lei, Xian-Hui Ge
https://arxiv.org/abs/2508.00404 https://

Quasi-Normal Modes and Nonlinear Electrodynamics in Black Hole Phase Transitions
We investigate the connection between thermodynamic phase transitions and quasi-normal modes (QNMs) in charged black holes with a positive curvature constant, within the framework of $F(R)$-Euler-Heisenberg gravity. Nonlinear electromagnetic fields lead to rich thermodynamic phase structures and significantly affect the QNMs of massless scalar fields. By analyzing the QNMs spectrum, we find that the transition point marking the disappearance of divergence in the QNMs slope parameter $K$ aligns …

Structural Phase Transition in CeMnSi under Pressure and Comparative Structural Properties of $R$MnSi ($R$ = La, Ce, Pr, Nd)
Yukihiro Kawamura, Sae Nishiyama, Jun-ichi Hayashi, Keiki Takeda, Chihiro Sekine, Hiroshi Tanida
https://arxiv.org/abs/2509.07210

Structural Phase Transition in CeMnSi under Pressure and Comparative Structural Properties of $R$MnSi ($R$ = La, Ce, Pr, Nd)
Powder X-ray diffraction experiments under pressure up to $\sim$10 GPa were performed on tetragonal CeFeSi-type $R$MnSi ($R$ = La, Ce, Pr, Nd). A structural phase transition was observed in CeMnSi at a critical pressure of $P_{\rm s}$ $\sim$ 5.7 GPa. In contrast, LaMnSi, PrMnSi, and NdMnSi do not exhibit any structural transitions within the same pressure range. The lattice parameter ratio $c/a$ of CeMnSi decreases rapidly as pressure approaches $P_{\rm s}$, whereas the $c/a$ ratios of the othe…

Temperature Dependent Optical Response Of High- Tc Yba2cu3o7-{\delta} (Ybco) Thin Films
Vivek Khichar, V. A. Chirayath, Jonathan Asaadi, Nader Hozhabri, Benjamin J. P. Jones, Ali R. Koymen, Iakovos Tzoka, Pratyanik Sau
https://arxiv.org/abs/2507.07866

Temperature Dependent Optical Response Of High- Tc Yba2cu3o7-δ (Ybco) Thin Films
We report on the temperature-dependent optical response of thin films of YBa2Cu3O7-δ (YBCO) in the visible spectral range under cryogenic conditions. Specifically, we observe an increase in transmittance near the superconducting transition temperature (Tc), which saturates within a few kelvins below Tc. The increase in transmittance is accompanied by a corresponding decrease in reflectance as the temperature drops below Tc, and both quantities track the superconducting phase transition. Change…

Gravitational wave spectra for cosmological phase transitions with non-linear decay of the fluid motion
Isak Stomberg, Alberto Roper Pol
https://arxiv.org/abs/2508.04263 https:/…

Gravitational wave spectra for cosmological phase transitions with non-linear decay of the fluid motion
We summarize the theoretical framework of gravitational wave (GW) production by bulk fluid motion induced by expanding broken-phase bubbles during a first-order phase transition. Using a locally stationary unequal-time correlator (UETC) to model the decay of the source due to non-linearities, we provide templates for the resulting GW background that have been validated against data from Higgsless simulations. This UETC generalizes the stationary one considered in the sound-shell model, appropri…

Spin Systems Coupled to Photons: A Case study of Phase Transition in a One-Dimensional Classical Ferromagnetic Ising Spin Chain at Finite Temperature
Shuntaro Otake, Motoaki Bamba
https://arxiv.org/abs/2507.01486

Spin Systems Coupled to Photons: A Case study of Phase Transition in a One-Dimensional Classical Ferromagnetic Ising Spin Chain at Finite Temperature
Although one-dimensional classical spin chains do not exhibit phase transitions, we found that a phase transition does occur when they are coupled to a cavity photon mode. This provides one of the simplest examples demonstrating that finite-temperature superradiant phase transitions can emerge from long-range fully connected interactions mediated by photons and interactions within the material.

Impact of First-order Electroweak Phase Transition on QCD Axion
Dipendu Bhandari, Soumen Kumar Manna, Arunansu Sil
https://arxiv.org/abs/2507.05353 https:/…

Impact of First-order Electroweak Phase Transition on QCD Axion
The QCD axion addresses the strong CP problem and dark matter via the misalignment mechanism, typically requiring a decay constant $f_a\sim \mathcal{O}(10^{12}$ GeV), unless the initial misalignment angle ($θ_i$) is fine-tuned. This work presents a novel approach where the possibility that the QCD axion satisfying the correct relic is extended over a broad range for $f_a\in [10^8, 10^{14}$] GeV without fine-tuning the $θ_i$, by introducing a new phase of axion oscillation dynamics across the …

Unilateral Criticality and Phase Transition in the Cavity-Ising Model
Zeyu Rao, Xiaoshui Lin, Xiwang Luo, Guangcan Guo, Han Pu, Ming Gong
https://arxiv.org/abs/2509.04391 https:…

Unilateral Criticality and Phase Transition in the Cavity-Ising Model
Superradiant phase transitions from cavity light-matter coupling have been widely explored across platforms. Here, we report a unilateral critical endpoint (UCEP) and a tricritical point (TCP) in the phase diagram of the cavity-coupled transverse Ising model with $\mathbb{Z}_2$ symmetry. At zero temperature, we demonstrate that this model hosts three phases separated by two second-order and one first-order transitions. These lines intersect at a TCP and a UCEP, the latter not captured by existi…

Emergent QED$_3$ at the bosonic Laughlin state to superfluid transition
Taige Wang, Xue-Yang Song, Michael P. Zaletel, T. Senthil
https://arxiv.org/abs/2507.07611

Emergent QED$_3$ at the bosonic Laughlin state to superfluid transition
Quantum phase transitions between topologically ordered and symmetry-broken phases lie beyond Landau theory. A prime example is the conjectured continuous transition from the bosonic $ν= 1/2$ Laughlin state to a superfluid, proposed to be governed by a QED$_3$--Chern--Simons (CS) critical point whose stability remains uncertain. We study half-filled bosons in the lowest Landau level subject to a lattice potential. Infinite-cylinder DMRG reveals a single continuous Laughlin--to--superfluid tran…

Boiling After the Dust Settles: Constraining First-Order Phase Transitions During Dark Energy Domination
Seth Koren, Yuhsin Tsai, Runqing Wang
https://arxiv.org/abs/2509.07076 h…

Boiling After the Dust Settles: Constraining First-Order Phase Transitions During Dark Energy Domination
A first-order phase transition could occur in the late universe when vacuum energy begins dominating the energy density ($z \lesssim 0.3$) and convert some latent heat into other forms such as invisible radiation. This generic possibility also has concrete motivation in particle physics models which invoke a multitude of vacua to address theoretical puzzles. The naïve constraint on such an event comes from measurements of the Hubble expansion rate, but this can only probe transitions involving…

Lyapunov exponents and phase transition of charged Ads black hole in quintessence
Xiaobo Guo, Rui Yang, Yizhi Liang, Jun Tao
https://arxiv.org/abs/2508.03519 https://

Lyapunov exponents and phase transition of charged Ads black hole in quintessence
This study investigates the phase transitions of RN-AdS black holes immersed in a quintessence field, employing Lyapunov exponents as a dynamical probe to characterize the thermodynamics of black hole. Incorporating quintessence dark energy into the RN-AdS framework, we find that the Lyapunov exponents for null and timelike geodesics display diminished chaotic behavior with increasing normalization factor of the quintessence field. This feature introduces a finite cutoff to the Lyapunov exponen…

Phase transitions in quantum dot-Majorana zero mode coupling systems
Yue Mao, Qing-Feng Sun
https://arxiv.org/abs/2509.04002 https://arxiv.org/pdf/2509.040…

Phase transitions in quantum dot-Majorana zero mode coupling systems
The magnetic doublet ground state (GS) of a quantum dot (QD) could be changed to a spin-singlet GS by coupling to a superconductor. In analogy, here we study the GS phase transitions in QD-Majorana zero mode (MZM) coupling systems: GS behaves phase transition versus intra-dot energy level and QD-MZM coupling strength. The phase diagrams of GS are obtained, for cases with and without Zeeman term. Along with the phase transition, we also study the change of spin feature and density of states. The…

Rotational susceptibility of a hot and dense hadronic matter: A possible probe of QCD phase transition
Bhagyarathi Sahoo, Kshitish Kumar Pradhan, Dushmanta Sahu, Raghunath Sahoo
https://arxiv.org/abs/2507.03708

Rotational susceptibility of a hot and dense hadronic matter: A possible probe of QCD phase transition
We study the effect of rotation and the consequent angular momentum fluctuations in a hadron resonance gas produced in ultra-relativistic heavy ion collisions. The rotational susceptibilities ($χ_{\rm ω}$, $χ^{2}_{\rm ω}$, etc.), which quantify how much the system responds to a small angular velocity, are estimated for the first time, considering that these can be valuable indicators of the QCD phase transition. The higher-order rotational susceptibilities and their ratios are estimated in …

Bimodal phase transition in a periodically modulated $\Lambda$-type three-level system
Sanjoy Mishra, Shraddha Sharma, Amit Rai, Pitamber Mahanandia
https://arxiv.org/abs/2508.01626

Bimodal phase transition in a periodically modulated $Λ$-type three-level system
We present a theoretical investigation of dynamical quantum phase transitions (QPTs) in a periodically driven $Λ$-type three-level system (3LS) embedded in a double-mode cavity, described by a three-level Jaynes-Cumming (3L-JC) Hamiltonian. To begin with, we probe the undriven static Hamiltonian in the dressed-state basis to identify and define distinct coupling regimes and critical points associated with both cavity modes. Furthermore, to investigate the dynamical QPTs in this system, we inco…

The alloying of first-principles calculations with quasiparticle methodologies for the converged solution of the quantum many-electron states in the correlated compound Iron monoxide
Suvadip Das
https://arxiv.org/abs/2508.08941

The alloying of first-principles calculations with quasiparticle methodologies for the converged solution of the quantum many-electron states in the correlated compound Iron monoxide
Transition metal oxides belong to a genre of quantum materials essential for the exploration of theoretical methods for quantifying electronic correlation. Finding an efficient and accurate first principles method for the assertion of such physical properties is momentous for the predictive modelling of physics based thermoelectric and photovoltaic devices. Prior investigations have suggested that incorporation of the so called random phase approximation for the electronic screening interaction…

Inflaton perturbations through an Ultra-Slow Roll transition and Hamilton-Jacobi attractors
Tomislav Prokopec, Gerasimos Rigopoulos
https://arxiv.org/abs/2507.04114

Inflaton perturbations through an Ultra-Slow Roll transition and Hamilton-Jacobi attractors
We examine the behaviour of the gauge invariant scalar field perturbations in an analytic inflationary model that transitions from slow roll to an ultra-slow roll (USR) phase. We find that the numerical solution of the Mukhanov-Sasaki equation is well described by Hamilton-Jacobi (HJ) theory, as long as the appropriate branches of the Hamilton-Jacobi solutions are invoked: Modes that exit the horizon during the slow roll phase evolve into the USR as described by the first HJ branch, up to a sub…

Enhanced spin-to-charge conversion in La$_{0.67}$Sr$_{0.33}$MnO$_3$/NdNiO$_3$ bilayers at the nickelate metal-insulator phase transition
Biswajit Sahoo, Sarmistha Das, Akilan K, Alexandre Pofelski, Sebastien Petit-Watelot, Juan-Carlos Rojas-S\'anchez, Yimei Zhu, Alex Frano, Eric E Fullerton
https://arxiv.org/abs/2508.05300

Enhanced spin-to-charge conversion in La$_{0.67}$Sr$_{0.33}$MnO$_3$/NdNiO$_3$ bilayers at the nickelate metal-insulator phase transition
Phase transition materials such as NdNiO3 (NNO) when coupled with low damping ferromagnets such as La$_{0.67}$Sr$_{0.33}$MnO$_3$ (LSMO) can lead to new multi-functional material systems harnessing the interplay of charge, spin and orbital degrees of freedom. In this study, we probe the evolution of the spin-to-charge conversion in epitaxial all-oxide LSMO (12 nm)/NNO (4, 8, and 16 nm) bilayers. Using spin pumping ferromagnetic resonance we track the spin-charge conversion in the NNO layer throu…

Revisiting the first-order QCD phase transition in dense strong interaction matter
Yi Lu, Fei Gao, Yu-xin Liu
https://arxiv.org/abs/2509.02974 https://arxi…

Revisiting the first-order QCD phase transition in dense strong interaction matter
We revisit the phase structure and thermodynamics of QCD in the low temperature and high density region, where a strong, first-order phase transition is expected beyond the critical end point. By solving the quark gap equation in the continuum QCD approach, we reveal the coexistence of the multi-phases both in the microscopic dynamics of chiral symmetry breaking and also in the thermodynamic observables, which suggests the existence of spinodal decomposition during the first-order QCD phase tra…

Signatures of emergent surface states across a displacive topological phase transition in Bi$_4$I$_4$
Deep Singha Roy, Sk Kalimuddin, Subrata Pachhal, Saikat Mondal, Soham Das, Sukanya Jana, Arnab Bera, Satyabrata Bera, Tuhin Debnath, Ankan Bag, Souvik Pramanik, Sudipta Chatterjee, Sanjib Naskar, Shishir Kumar Pandey, Adhip Agarwala, Mintu Mondal
https://

Signatures of emergent surface states across a displacive topological phase transition in Bi$_4$I$_4$
Topological phase transitions involving crystalline symmetry breaking provide a fertile ground to explore the interplay between symmetry, topology, and emergent quantum phenomena. Recently discovered quasi-one-dimensional topological material, Bi$_4$I$_4$, has been predicted to host topologically non-trivial gapless surfaces at high temperature, which undergo a finite temperature phase transition to a low temperature gapped phase. Here we present experimental signatures of this room temperature…

Self-strain suppression of the metal-to-insulator transition in phase-change oxide devices
Nicol\`o D'Anna, Nareg Ghazikhanian, Erik S. Lamb, Edoardo Zatterin, Mingze Wan, Ashley Thorshov, Ivan K. Schuller, Oleg Shpyrko
https://arxiv.org/abs/2508.00347

Self-strain suppression of the metal-to-insulator transition in phase-change oxide devices
Quantum materials exhibiting phase transitions which can be controlled through external stimuli, such as electric fields, are promising for future computing technologies beyond conventional semiconductor transistors. Devices that take advantage of structural phase transitions have inherent built-in memory, reminiscent of synapses and neurons, and are thus natural candidates for neuromorphic computing. Of particular interest are phase-change oxides, which allow for control over the metal-to-insu…

Electroweak Phase Transition, Gravitational Waves and Collider Probes in Multi-Scalar Dark Matter Scenarios
Tripurari Srivastava, Jaydeb Das, Anupam Ghosh, Arnab Chaudhuri
https://arxiv.org/abs/2507.05917

Electroweak Phase Transition, Gravitational Waves and Collider Probes in Multi-Scalar Dark Matter Scenarios
We study scalar singlet extensions of the Standard Model (SM), focusing on scenarios where dark matter (DM) is stabilized by a \(\mathbb{Z}_2\) symmetry. In the minimal single-scalar extension of the SM, only a narrow region near the Higgs resonance remains viable, requiring small portal couplings in order to simultaneously satisfy the observed relic abundance and comply with the most recent direct detection limits from the LUX-ZEPLIN (LZ-2024) and XENON1T experiments. To address this limitatio…

The Kerr-Induced Superradiant Tricritical Point
Arash Azizi, Reed Nessler
https://arxiv.org/abs/2509.04530 https://arxiv.org/pdf/2509.04530

The Kerr-Induced Superradiant Tricritical Point
The interplay of interaction and dissipation in open quantum systems can forge phase transitions beyond conventional paradigms. In the canonical quantum Rabi model, we demonstrate that a photon-photon (Kerr) interaction transforms the celebrated superradiant phase transition, inducing a line that separates continuous, second-order behavior from discontinuous, first-order regimes. Strikingly, this is not a line of tricritical points. Instead, we prove that genuine tricriticality is an isolated p…

Magic Entropy in Hybrid Spin-Boson Systems
Samuel Crew, Ying-Lin Li, Heng-Hsi Li, Po-Yao Chang
https://arxiv.org/abs/2508.06018 https://arxiv.org/pdf/2508.…

Magic Entropy in Hybrid Spin-Boson Systems
We introduce entropic measures to quantify non-classical resource in hybrid spin-boson systems. We discuss the stabilizer Rényi entropy in the framework of phase space quantisation and define an analogous hybrid magic entropy and a mutual magic entropy that capture the distribution of quantum magic across spin and bosonic subsystems. We use these entropic measures to demonstrate two key phenomena: the detection of the superradiant phase transition in the Dicke model and the dynamics of magic i…

A New Source of Phase Transition Gravitational Waves: Heavy Particle Braking Across Bubble Walls
Dayun Qiu, Siyu Jiang, Fa Peng Huang
https://arxiv.org/abs/2508.04314 https://…

A New Source of Phase Transition Gravitational Waves: Heavy Particle Braking Across Bubble Walls
We propose a novel mechanism for the generation of microscopic gravitational waves (GWs) during cosmological first-order phase transitions, arising from the braking of heavy particles as they traverse bubble walls. Unlike conventional sources such as bubble collision, sound waves or turbulence in the plasma, this mechanism originates from the direct interaction between massive particles and the expanding bubble wall. We use quantum field theory to rigorously compute the gravitational radiation.…

About the Strain-Coupled Molecular Dynamics in the Ferroelastic Phase Transition of TMACd(N$_3$)$_3$
A. Nonato, R. X. Silva, C. C. Santos, A. P. Ayala, C. W. A. Paschoal
https://arxiv.org/abs/2507.01179

About the Strain-Coupled Molecular Dynamics in the Ferroelastic Phase Transition of TMACd(N$_3$)$_3$
Tetramethylammonium (TMA) cadmium azide, is a new perovskite-like compound which undergoes a series of first-order phase transitions, including a ferroelastic transition above room temperature. Understanding the order-disorder structural phase transition (SPT) mechanism in hybrid organic--inorganic perovskites (HOIPs) is crucial for designing new compounds with enhanced barocaloric efficiency, as well as unlocking other multifunctional properties. In this paper, we employed the energy fluctuati…

Terahertz nonlinear response in cuprate superconductors and the Higgs field in doped Mott insulators
Xiang Li, Zheng-Yu Weng
https://arxiv.org/abs/2509.08370 https://

Terahertz nonlinear response in cuprate superconductors and the Higgs field in doped Mott insulators
A puzzling phenomenon has been recently revealed in terahertz nonlinear optical response experiments: A third harmonic generation (THG) signal, identified only in the superconducting (SC) phase in a conventional BCS superconductor, is found to persist into a wide pseudogap regime in the underdoped cuprate, accompanied by a $π$ phase shift in the THG signal across the SC transition. In this paper, we offer a consistent understanding of such an unconventional phenomenon based on an emergent Higg…

Phase structure of below-threshold harmonics in aligned molecules: a few-level model system
Samuel Sch\"opa, Falk-Erik Wiechmann, Franziska Fennel, Dieter Bauer
https://arxiv.org/abs/2507.20829

Phase structure of below-threshold harmonics in aligned molecules: a few-level model system
We utilize few-level model systems to analyze the polarization and phase properties of below-threshold harmonics (BTH) in aligned molecules. In a two-level system (TLS), we find that the phase of emitted harmonics undergoes a distinct change. For harmonics with photon energies below the transition between the dominant field-dressed states, the phase alternates by $π$ between successive odd harmonic orders but remains constant above. Exploiting this behavior, we construct a four-level model com…

Doping Induced Magnetic and Electronic phase Transition in Ferrimagnetic Half-metallic Mn$_{4}$Al$_{11}$ Compound
Sujoy Datta, Prashant Singh
https://arxiv.org/abs/2507.05206

Doping Induced Magnetic and Electronic phase Transition in Ferrimagnetic Half-metallic Mn$_{4}$Al$_{11}$ Compound
The future of spintronic and semiconductor applications demands materials with tailored electronic and magnetic properties. This study uses density functional theory to investigate the electronic structure of the half-metallic compound Mn$_{4}$Al$_{11}$ under uniaxial strain and in its Ge-substituted derivatives. Strain analysis shows that although the half-metallic band-gap collapses under strain beyond $-2\%$, the ferrimagnetic character remains stable. Ge substitution at six inequivalent Al-…

Dynamics of chiral phase transition in a $N_f=2 1$ soft-wall AdS/QCD model
Han Tang, Bin Dong, Nanxiang Wen, Yidian Chen, Danning Li
https://arxiv.org/abs/2507.21735 https://

Dynamics of chiral phase transition in a $N_f=2+1$ soft-wall AdS/QCD model
We investigate the real-time dynamics of the chiral phase transition in a soft-wall AdS/QCD model, of which the mass plane phase diagram from equilibrium calculation is qualitatively consistent with the so-called Columbia plot. By directly solving the non-equilibrium evolution of the order parameter of the chiral phase transition, i.e. the chiral condensate, we study the thermalization of the QCD matter in different regions of the quark mass plane. It is shown that, when the system is close to …

Realization of a Spin-1/2 Hexagonal-Plaquette Chain with Ising-Like Anisotropy
Hironori Yamaguchi, Shunsuke C. Furuya, Yu Tominaga, Koji Araki, Masayuki Hagiwara
https://arxiv.org/abs/2509.09060

Realization of a Spin-1/2 Hexagonal-Plaquette Chain with Ising-Like Anisotropy
We present the realization of a spin-1/2 hexagonal-plaquette chain with Ising anisotropy, an unexplored quantum spin model that serves as a platform for investigating anisotropic quantum magnetism. Specific heat at zero field reveals a sharp peak at $T_{\rm{N}}$ = 1.0 K, indicating a phase transition to a N$\acute{\rm{e}}$el order stabilized by interchain couplings. A perturbative analysis maps the system onto an effective spin-1/2 Ising-like chain, supporting the presence of an anisotropy-indu…

Post-Sphaleron Darkogenesis
Sudhakantha Girmohanta, Yuichiro Nakai, Zhihao Zhang
https://arxiv.org/abs/2507.03747 https://arxiv.org/p…

Post-Sphaleron Darkogenesis
A supercooled phase transition in a nearly conformal dark sector can provide a natural setting for darkogenesis via its out-of-equilibrium dynamics, where a particle-antiparticle number asymmetry in the dark sector can be reprocessed into the visible sector, yielding the observed baryon asymmetry and an asymmetric dark matter. We consider a scenario where the number asymmetry is generated from the decay of a mother particle produced via parametric resonance during the phase transition induced d…

Thermoelectric figure of merit and the deconfinement phase transition
Kamaljeet Singh, Raghunath Sahoo
https://arxiv.org/abs/2508.00407 https://arxiv.org/p…

Thermoelectric figure of merit and the deconfinement phase transition
Thermoelectric phenomena are traditionally associated with the interconversion of thermal and electrical energy in many-body systems. In the context of high-temperature quantum chromodynamics (QCD) matter produced in relativistic heavy-ion collisions, thermoelectric responses can provide insight into the evolving microscopic dynamics and the redistribution of effective degrees of freedom across the phase transition region. In this work, for the first time, we present a phenomenological study of…

Thickness-Induced Topological Phase Transition Investigated by Helicity Dependent Photocurrent in $\alpha$-Sn/CdTe(110)
Tengfei Liu, Xiyu Hong, Zhe Li, Shenzhong Chen, Leyi Li, Xin-Yi Tang, Shuying Cheng, Yunfeng Lai, Yonghai Chen, Zhu Diao, Ke He, Qi-kun Xue, Jinling Yu
https://arxiv.org/abs/2509.04042

Thickness-Induced Topological Phase Transition Investigated by Helicity Dependent Photocurrent in $α$-Sn/CdTe(110)
$α$-Sn exhibits a rich topological phase diagram, yet experimental methods to tune and distinguish these phases remain limited. Here, we investigated the helicity-dependent photocurrent (HDPC) in $α$-Sn films of varying thickness grown on CdTe(110) by molecular beam epitaxy. The HDPC of the 5 nm $α$-Sn film shows an odd-function dependence on incident angle, whereas that of the 10 and 30 nm films exhibit an even-function dependence. Combined with high-resolution transmission electron microsc…

Gravitational waves from a dilaton-induced, first-order QCD phase transition
Aleksandr Chatrchyan, M. C. David Marsh, Charalampos Nikolis
https://arxiv.org/abs/2507.01191

Gravitational waves from a dilaton-induced, first-order QCD phase transition
We show that a `QCD dilaton' field, whose vacuum expectation value sets the strong coupling, can render the Quantum Chromodynamic (QCD) confinement transition first-order. The QCD dilaton is cosmologically attracted to a false vacuum at weak coupling in the early universe. Quantum tunnelling towards the true vacuum triggers prompt chiral symmetry breaking and confinement of QCD, leading to detonating bubbles of the hadronic phase. We find that plasma sound waves produced by this dilaton-induced…

Entropy production at electroweak bubble walls from scalar field fluctuations
M. Eriksson, M. Laine
https://arxiv.org/abs/2507.07755 https://

Entropy production at electroweak bubble walls from scalar field fluctuations
The real-time dynamics of an electroweak phase transition involves large time and distance scales, the domain of hydrodynamics. However, the matching conditions of ideal hydrodynamics across a bubble wall do not fix the fluid profile completely, with the remaining degree of freedom parametrizable through entropy production. Within a framework of Langevin dynamics, viewed as an effective description valid between the hydrodynamic ($k \sim g^4_{ } T/π^3_{ }$) and soft momentum scales ($k \sim gT…

Significance of soft-scale breaking on primordial black hole production in Coleman-Weinberg type supercooling-phase transition
He-Xu Zhang, Katsuya Hashino, Hiroyuki Ishida, Shinya Matsuzaki
https://arxiv.org/abs/2506.23752

Significance of soft-scale breaking on primordial black hole production in Coleman-Weinberg type supercooling-phase transition
Ultra-supercooling phase transitions can generate large overdensities in the Universe, potentially leading to the formation of primordial black holes (PBHs), which can also be a dark matter candidate. In this work, we focus on the supercooling phase transition for the scale symmetry breaking based on the effective potential of the Coleman-Weinberg (CW) type. We investigate the effect on the PBH production in the presence of an additional mass term for the CW scalar field, what we call a soft-sc…

QCD phase transition at finite temperature and chemical potential with the non-extensive statistics
Zhi-Ying Qin, Jia-Hao Shi, Jin-Peng Zhang, Jian Cao, Bo Feng, Wen-Chao Zhang, Hua Zheng, Shi-Jun Mao
https://arxiv.org/abs/2507.00731

QCD phase transition at finite temperature and chemical potential with the non-extensive statistics
With the application of the non-extensive correction to the equation of state (EoS) in the parton (hadron resonance) gas at high (low) temperature and a smooth interpolation of these two equation of states, a non-extensive version of EoS is constructed to investigate the properties of quantum chromodynamics (QCD) phase transition at finite temperature ($T$) and chemical potential ($μ$). It is based on non-extensive statistics and characterized by a non-extensivity parameter $q$, which measures…

Replaced article(s) found for hep-ph. https://arxiv.org/list/hep-ph/new
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- SMEFT effects on gravitational wave spectrum from electroweak phase transition
Katsuya Hashino, Daiki Ueda