Tootfinder

Z and Higgs Factory Implications of Two Higgs Doublets with First-Order Phase Transitions
Anisha, Francisco Arco, Stefano Di Noi, Christoph Englert, Margarete M\"uhlleitner
https://arxiv.org/abs/2506.18555

Z and Higgs Factory Implications of Two Higgs Doublets with First-Order Phase Transitions
We investigate the potential of future electron-positron colliders, such as FCC-ee and CEPC, to probe 2-Higgs-doublet models (2HDMs) that facilitate a strong first-order electroweak phase transition (SFOEWPT), a necessary condition for electroweak baryogenesis. Focusing on a 2HDM in the CP-conserving limit, we identify parameter regions consistent with an SFOEWPT and evaluate their compatibility with projected precision electroweak and Higgs measurements, as well as searches for exotic Higgs bo…

Interaction-Driven Topological Transitions in Monolayer TaIrTe4
Jiangxu Li, Jian Tang, Louis Primeau, Thomas Siyuan Ding, Rahul Soni, Tiema Qian, Kenji Watanabe, Takashi Taniguchi, Ni Ni, Adrian Del Maestro, Qiong Ma, Yang Zhang
https://arxiv.org/abs/2506.18412

Interaction-Driven Topological Transitions in Monolayer TaIrTe4
Discovering materials that combine topological phenomena with correlated electron behavior is a central pursuit in quantum materials research. Monolayer TaIrTe$_4$ has recently emerged as a promising platform in this context, hosting robust quantum spin Hall insulator (QSHI) phases both within a single-particle gap and within a correlation-induced gap arising from van Hove singularities (vHSs), accessed via electrostatic doping. Its intrinsic monolayer nature offers exceptional tunability and t…

Hopf-Induced Desynchronization
Seungjae Lee, Lennart J. Kuklinski, Moritz Th\"umler, Marc Timme
https://arxiv.org/abs/2506.16845 https://

Hopf-Induced Desynchronization
The emergence of synchrony essentially underlies the functionality of many systems across physics, biology and engineering. In all established synchronization phase transitions so far, a stable synchronous state is connected to a stable incoherent state: For continuous transitions, stable synchrony directly connects to stable incoherence at a critical point, whereas for discontinuous transitions, stable synchrony is connected to stable incoherence via an additional unstable branch. Here we pres…

Challenges and Practices in Quantum Software Testing and Debugging: Insights from Practitioners
Jake Zappin, Trevor Stalnaker, Oscar Chaparro, Denys Poshyvanyk
https://arxiv.org/abs/2506.17306

Challenges and Practices in Quantum Software Testing and Debugging: Insights from Practitioners
Quantum software engineering is an emerging discipline with distinct challenges, particularly in testing and debugging. As quantum computing transitions from theory to implementation, developers face issues not present in classical software development, such as probabilistic execution, limited observability, shallow abstractions, and low awareness of quantum-specific tools. To better understand current practices, we surveyed 26 quantum software developers from academia and industry and conducte…

Robotic Manipulation of a Rotating Chain with Bottom End Fixed
Qi Jing Chen, Shilin Shan, Quang-Cuong Pham
https://arxiv.org/abs/2506.18355 https://…

Robotic Manipulation of a Rotating Chain with Bottom End Fixed
This paper studies the problem of using a robot arm to manipulate a uniformly rotating chain with its bottom end fixed. Existing studies have investigated ideal rotational shapes for practical applications, yet they do not discuss how these shapes can be consistently achieved through manipulation planning. Our work presents a manipulation strategy for stable and consistent shape transitions. We find that the configuration space of such a chain is homeomorphic to a three-dimensional cube. Using …

On the Existence and Uniqueness of Symmetric Structures Generating Complete Ordered Pairs
Nicol\'as Agust\'in Mart\'inez
https://arxiv.org/abs/2506.16414

On the Existence and Uniqueness of Symmetric Structures Generating Complete Ordered Pairs
This work introduces a new class of symmetric matrix structures, called harmonic structures, which enable the generation of all possible directed transitions $(x_i, x_{i+1})$ over a set of $n$ symbols, without internal repetitions. Unlike other combinatorial constructions, these structures are defined solely by the relative positions of the elements, not their concrete values. Two structures are considered equivalent if one can be obtained from the other through row permutation and/or global re…

X-ray and Optical Analysis of the Prototype Polar AN UMa
S. Ok, M. Yardimci, B. Kalomeni, A. Schwope
https://arxiv.org/abs/2506.18553 https://

X-ray and Optical Analysis of the Prototype Polar AN UMa
We present a long-term optical and X-ray photometric study of AN UMa, one of the prototypical polar-type cataclysmic variables, tracing more than 34 years of its accretion history. Observations from both ground-based and space-based facilities have been analysed to investigate state transitions within the system. Throughout this period, significant changes in the light curve have been observed, corresponding to different mass accretion states. From four years of TESS photometry, we derive a rev…

A Dynamic Strategic Plan for Transition to Campus-Scale Clean Electricity Using Multi-Stage Stochastic Programming
Ahmet Emir \c{S}ener, Burak Kocuk, Tu\u{g}\c{c}e Y\"uksel
https://arxiv.org/abs/2506.16423

A Dynamic Strategic Plan for Transition to Campus-Scale Clean Electricity Using Multi-Stage Stochastic Programming
The transition to clean energy systems at large-scale campuses is a critical step toward achieving global decarbonization goals. However, this transition poses significant challenges, including substantial capital requirements, technological uncertainties, and the operational complexities of integrating renewable energy technologies. This study presents a dynamic strategic planning framework for campus-scale clean electricity transitions, utilizing a multi-stage stochastic programming model tha…

Crystal Nucleation Kinetics and Mechanism: Influence of Interaction Potential
Porhouy Minh, Steven W. Hall, Ryan S. DeFever, Sapna Sarupria
https://arxiv.org/abs/2506.16541

Crystal Nucleation Kinetics and Mechanism: Influence of Interaction Potential
Modulating liquid-to-solid transitions and the resulting crystalline structure for tailored properties is much desired. Colloidal systems are exemplary to this end, but the fundamental knowledge gaps in relating the influence of intermolecular interactions to crystallization behavior continue to hinder progress. In this study, we address this knowledge gap by studying nucleation and growth in systems with modified Lennard-Jones potential. Specifically, we study the commonly used 12-6 potential …

Giant Magneto-Optical Effects in Two-Dimensional Flat-Band Antiferromagnets
Ping Yang, Wanxiang Feng, Siyuan Liu, Shan Guan, Liwei Wen, Wei Jiang, Gui-Bin Liu, Yugui Yao
https://arxiv.org/abs/2506.16749

Giant Magneto-Optical Effects in Two-Dimensional Flat-Band Antiferromagnets
In this work, we reveal giant magneto-optical responses in two-dimensional(2D) antiferromagnets with nearly flat electronic bands, based on first-principles calculations and group-theoretical analysis. We identify a record-large second-order magneto-optical Schafer-Hubert(SH) effect, featuring a polarization rotation angle of 28 degree, in monolayer antiferromagnetic RuOCl2, driven by flatband-enhanced interband optical transitions. Both the valence and conduction bands exhibit pronounced direc…

Polar solitons in a nonpolar chiral soft matter system
Jiahao Chen, Xingzhou Tang, Yang Ding, Susanta Chakraborty, Satoshi Aya, Bingxiang Li, Yanqing Lu
https://arxiv.org/abs/2506.16778

Polar solitons in a nonpolar chiral soft matter system
Polar solitons, i.e., solitonic waves accompanying asymmetry of geometry or phase, have garnered attention in polar systems, such as ferroelectric or magnetoelectric materials, where they play a critical role in topological transitions and nonreciprocal responses to external fields. A key question is whether such polar solitons can emerge in nonpolar systems, where intrinsic polarity is absent. Here, we demonstrate an unprecedented polar soliton with nematic order in a nonpolar and chiral liqui…

Electric field control of superconducting fluctuations and quasiparticle interference at oxide interfaces
Graham Kimbell (Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland), Ulderico Filippozzi (Kavli Institute of Nanoscience, Delft University of Technology, Delft, Netherlands), Stefano Gariglio (Department of Quantum Matter Physics, University of Geneva, Geneva, Switzerland), Marc Gabay (Laboratoire de Physique des Solides, Universite Paris Saclay, CNRS U…

Electric field control of superconducting fluctuations and quasiparticle interference at oxide interfaces
We investigate tunable superconducting transitions in (111)$\mathrm{LaAlO}_3/\mathrm{KTaO}_3$ field-effect devices. Large increases in conductivity, associated with superconducting fluctuations, are observed far above the transition temperature. However, the standard Aslamazov-Larkin paraconductivity model significantly underestimates the effect observed here. We use a model that includes conductivity corrections from normal state quasiparticle interference together with all contributions from …

Extracting the singularity of the logarithmic partition function
Zhe Wang, Yi-Ming Ding, Zenan Liu, Zheng Yan
https://arxiv.org/abs/2506.16111 https://

Extracting the singularity of the logarithmic partition function
In principle, the logarithm of the partition function and its derivatives can be used to rigorously determine the nature of phase transitions. However, in practice, this approach is often ineffective in numerical calculations, since resolving the singularities of the logarithmic partition function requires extremely high precision data especially when distinguishing between weakly first order phase transitions and deconfined quantum critical points. Based on the finite size scaling hypothesis, …

Compressibility measurement of the thermal MI--BG transition in an optical lattice
Phil Russ, Mi Yan, Nicholas Kowalski, Laura Wadleigh, Vito W. Scarola, Brian DeMarco
https://arxiv.org/abs/2506.16466

Compressibility measurement of the thermal MI--BG transition in an optical lattice
Disorder can be applied to transform conducting to insulating states by localizing individual quantum particles. The interplay between disorder and interactions in many-particle systems leads to a richer tapestry of quantum phase transitions. Here, we report the measurement in an ultracold lattice gas of a disorder-induced transition from a state with small disorder-independent compressibility to a state for which compressibility increases with disorder. At zero temperature this is the transiti…

Assignment of collision-induced four-level double-resonance transitions in the 3${\nu}$${_3}$ ${\Leftarrow}$ ${\nu}$${_3}$ spectral region of methane
Kevin K. Lehmann, Isak Silander, Adrian Hj\"alt\'en, Michael Rey, Aleksandra Foltynowicz
https://arxiv.org/abs/2506.13644

Assignment of collision-induced four-level double-resonance transitions in the 3$ν$${_3}$ ${\Leftarrow}$ $ν$${_3}$ spectral region of methane
Optical-optical double-resonance (OODR) spectroscopy using a narrow-linewidth pump and a frequency comb probe has previously been used to measure and assign sub-Doppler transitions in the 3$ν$${_3}$ ${\Leftarrow}$ $ν$${_3}$ spectral region [J. Chem. Phys. 161, 124311 (2024)] when pumping from the J = (7, A${_2}$) ground state. Doppler-broadened double-resonance transitions were also observed in those OODR spectra. In this paper, 68 of these Doppler-broadened transitions are assigned to four-l…

Unsupervised deep learning model for fast energy layer pre-selection of delivery-efficient proton arc therapy plan optimization of nasopharyngeal carcinoma
Bohan Yang, Gang Liu, Rirao Dao, Yujia Qian, Ke Shi, Anke Tang, Yong Luo, Jingnan Liu
https://arxiv.org/abs/2506.15803

Unsupervised deep learning model for fast energy layer pre-selection of delivery-efficient proton arc therapy plan optimization of nasopharyngeal carcinoma
Objective. Proton arc therapy (PAT) is an emerging and promising modality in radiotherapy, offering several advantages over conventional intensitymodulated proton therapy (IMPT). However, identifying the optimal energy layer (EL) sequence remains computationally intensive due to the large number of possible energy layer transitions. This study proposes an unsupervised deep learning framework for fast and effective EL pre-selection, aiming to minimize energy layer switch time while preserving hi…

Replaced article(s) found for hep-ph. https://arxiv.org/list/hep-ph/new
[1/3]:
- Matter effects on flavor transitions of high-energy astrophysical neutrinos based on typical prop...
Ding-Hui Xu, Shu-Jun Rong

Stability of universal properties against perturbations of the Markov Chain Monte Carlo algorithm
Matteo Bacci, Claudio Bonati
https://arxiv.org/abs/2506.18561

Stability of universal properties against perturbations of the Markov Chain Monte Carlo algorithm
We numerically investigate the stability of universal properties at continuous phase transitions against perturbations of the Markov Chain Monte Carlo algorithm used to simulate the system. We consider the three dimensional XY model as test bed, and both local (single site Metropolis) and global (single cluster) updates, introducing deterministic truncation-like perturbations and stochastic perturbations in the acceptance probabilities. In (almost) all the cases we find a remarkable stability o…

Uncertainty Prioritized Experience Replay
Rodrigo Carrasco-Davis, Sebastian Lee, Claudia Clopath, Will Dabney
https://arxiv.org/abs/2506.09270 https://

Uncertainty Prioritized Experience Replay
Prioritized experience replay, which improves sample efficiency by selecting relevant transitions to update parameter estimates, is a crucial component of contemporary value-based deep reinforcement learning models. Typically, transitions are prioritized based on their temporal difference error. However, this approach is prone to favoring noisy transitions, even when the value estimation closely approximates the target mean. This phenomenon resembles the noisy TV problem postulated in the explo…

Combined frequency comb and continuous wave cavity-enhanced optical-optical double-resonance spectrometer in the 1.7 ${\mu}$m range
Vinicius Silva de Oliveira, Adrian Hj\"alt\'en, Isak Silander, Andrea Rosina, Michael Rey, Kevin K. Lehmann, Aleksandra Foltynowicz
https://arxiv.org/abs/2506.17669

Combined frequency comb and continuous wave cavity-enhanced optical-optical double-resonance spectrometer in the 1.7 $μ$m range
We present an optical-optical double-resonance (OODR) spectrometer based on a 3.3 $μ$m continuous wave pump and two cavity-enhanced probes: a frequency comb tunable in the 1.64 - 1.8 $μ$m range, and a comb-referenced continuous wave (CW) laser tunable in the 1.6 - 1.75 $μ$m range. The comb probe provides broad spectral coverage (bandwidth up to 7 THz) for simultaneous detection of many sub-Doppler OODR transitions with sub-MHz line position accuracy, while the CW probe allows targeting indiv…

Fast Transitions of X-ray Variability in the Neutron Star Low Mass X-ray Binary Cygnus X-2
Liang Zhang, Mariano M\'endez, Hua Feng, Diego Altamirano, Zi-xu Yang, Qing-chang Zhao, Shuang-nan Zhang, Lian Tao, Yue Huang, Xiang Ma, Shu-mei Jia, Ming-yu Ge, Li-ming Song, Jin-lu Qu, Shu Zhang
https://arxiv.org/abs/2506.13503

Fast Transitions of X-ray Variability in the Neutron Star Low Mass X-ray Binary Cygnus X-2
We present a spectral-timing analysis of two NICER observations of the weakly magnetized neutron star low-mass X-ray binary Cygnus X-2. During these observations, we detect a rapid transition from a narrow 50-Hz horizontal-branch oscillation to a broad 5-Hz normal-branch oscillation, accompanied by an increase in source flux and a decrease in spectral hardness. Thanks to the large effective area of NICER, we are able to conduct a detailed comparison of the spectra associated with different type…

Nonequilibrium orders in parametrically driven field theories
Carl Philipp Zelle, Romain Daviet, Andrew J. Millis, Sebastian Diehl
https://arxiv.org/abs/2506.18622

Nonequilibrium orders in parametrically driven field theories
Driving quantum materials with coherent light has proven a powerful platform to realize a plethora of interesting phases and transitions, ranging from ferroelectricity to superconductivity and limit cycles in pumped magnonics. In this paper we develop the field theoretical framework to describe nonequilibrium phases that emerge in systems pumped by rapid parametric drives. We consider paradigmatic O(N) models that describe the long-wavelength fluctuations of ordering fields in many condensed ma…

Topological phase transitions in strained Lieb-Kagome lattices
W. P. Lima, T. F. O. Lara, J. P. G. Nascimento, J. Milton Pereira Jr., D. R. da Costa
https://arxiv.org/abs/2506.13031

Topological phase transitions in strained Lieb-Kagome lattices
Lieb and Kagome lattices exhibit two-dimensional topological insulator behavior with $\mathbb{Z}_2$ topological classification when considering spin-orbit coupling. In this study, we used a general tight-binding Hamiltonian with a morphological control parameter $θ$ to describe the Lieb ($θ=π/2$), Kagome ($θ=2π/3$), and transition lattices ($π/2<θ<2π/3$) while considering intrinsic spin-orbit (ISO) coupling. We systematically investigated the effects of shear and uniaxial strains, appli…

Detecting transitions from steady states to chaos with gamma distribution
Haiyan Wang, Ying Wang
https://arxiv.org/abs/2506.10724 https://

Detecting transitions from steady states to chaos with gamma distribution
In this paper, we introduce a novel method to identify transitions from steady states to chaos in stochastic models, specifically focusing on the logistic and Ricker equations by leveraging the gamma distribution to describe the underlying population. We begin by showing that when the variance is sufficiently small, the stochastic equations converge to their deterministic counterparts. Our analysis reveals that the stochastic equations exhibit two distinct branches of the intrinsic growth rate,…

Validity of generalized Gibbs ensemble in a random matrix model with a global $\mathbb{Z}_2$-symmetry
Adway Kumar Das
https://arxiv.org/abs/2506.16176 http…

Validity of generalized Gibbs ensemble in a random matrix model with a global $\mathbb{Z}_2$-symmetry
$\mathbb{Z}_2$ symmetry is ubiquitous in quantum mechanical systems where it drives various phase transitions and emergent physics. To understand the role of $\mathbb{Z}_2$ symmetry in the thermalization of a local observable in a disordered system, we consider random symmetric centrosymmetric (SC) matrices where the exchange symmetry is conserved. Such a conservation law splits the Hilbert space into decoupled subspaces such that the energy spectrum of a SC matrix is a superposition of two pur…

Theoretical uncertainties for primordial black holes from cosmological phase transitions
Maciej Kierkla, Nicklas Ramberg, Philipp Schicho, Daniel Schmitt
https://arxiv.org/abs/2506.15496

Theoretical uncertainties for primordial black holes from cosmological phase transitions
Strongly supercooled first-order phase transitions have been proposed as a primordial black hole (PBH) production mechanism. While previous works rely on simplified models with limited thermodynamic precision, we stress that reliable theoretical PBH predictions require precise nucleation dynamics within realistic, classically conformal extensions of the Standard Model. By employing high-temperature dimensional reduction and computing the one-loop fluctuation determinants, we provide a state-of-…

This https://arxiv.org/abs/2502.01136 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Dissipative quantum phase transitions monitored by current fluctuations
Dissipative phase transitions (DPT) are defined by sudden changes in the physical properties of nonequilibrium open quantum systems and they present characteristics that have no analogue in closed and thermal systems. Several methods to detect and characterize DPT have been suggested in the literature, the most famous of which -- the $\textit{Liouvillian gap}$ -- can be derived from a spectral analysis of the Liouvillian super-operator that governs the complex interplay between coherent and dis…

Dynamical Phase Diagram of the REM under independent spin-flips
Chokri Manai, Simone Warzel
https://arxiv.org/abs/2506.15353 https://…

Dynamical Phase Diagram of the REM under independent spin-flips
We study the energy landscape of the Random Energy model (REM) integrated along trajectories of the simple random walk on the hypercube. We show that the quenched cumulant generating function of the time integral of the REM energy undergoes phase transitions in the large $N$ limit for trajectories of any time extent, and identify phases distinguished by the activity and value of the time integral. This is achieved by relating the dynamical behavior to the spectral properties of Hamiltonians ass…

Vortex-magnetic competition and regime transitions in antiparallel flux tubes
Weiyu Shen, Rodolfo Ostilla-M\'onico, Xiaojue Zhu
https://arxiv.org/abs/2506.10648

Vortex-magnetic competition and regime transitions in antiparallel flux tubes
Vortex-magnetic interactions shape magnetohydrodynamic (MHD) turbulence, influencing energy transfer in astrophysical, geophysical, and industrial systems. On the Sun, granular-scale vortex flows couple strongly with magnetic fields, channelling energy into the corona. At high Reynolds numbers, vorticity and magnetic fields are nearly frozen into the charged fluid, and MHD flows emerge from the interplay between vortex dynamics and Lorentz forces. To probe this competition in a controlled setti…

Successive Phase Transitions in the Quasi-Kagome Lattice System URhSn Studied by Resonant X-ray Scattering
Chihiro Tabata, Fusako Kon, Ruo Hibino, Yusei Shimizu, Hiroshi Amitsuka, Koji Kaneko, Yoshiya Homma, Dai Aoki, Hironori Nakao
https://arxiv.org/abs/2506.15394

Successive Phase Transitions in the Quasi-Kagome Lattice System URhSn Studied by Resonant X-ray Scattering
Successive phase transitions in the quasi-kagome compound URhSn were investigated by resonant X-ray scattering (RXS) at the uranium $M_4$ edge. In the high-temperature phase between 16 K and 54 K, an additional RXS signal was detected superposed onto fundamental reflections in both $π$-$σ'$ and $π$-$π'$ polarization channels. Upon cooling below 16 K, reported as a ferromagnetic phase along $c$, substantial enhancements were observed again in the both polarization channels at the 300 reflect…

Primordial Gravitational Waves from Phase Transitions during Reheating
Amitayus Banik, Nicol\'as Bernal, Fazlollah Hajkarim
https://arxiv.org/abs/2506.02116

Primordial Gravitational Waves from Phase Transitions during Reheating
We study primordial gravitational waves (GWs) generated from first-order phase transitions (PTs) during cosmic reheating. Using a minimal particle physics model, and a general parametrization of the inflaton energy density and the evolution of the Standard Model temperature, we explore the conditions under which PTs occur and determine the corresponding PT parameters (the PT temperature, duration and strength), which depend on the evolution of the background during reheating. We find that, in c…

This took longer than expected. Pretty cool that it works.
Post featured in video: #PhanpySocialDev

Nonlinear bulk photocurrent probe Z2 topological phase transition
Debasis Dutta, Raihan Ahammed, Yingdong Wei, Xiaokai Pan, Xiaoshuang Chen, Lin Wang, Amit Agarwal
https://arxiv.org/abs/2506.13493

Nonlinear bulk photocurrent probe Z2 topological phase transition
Detecting topological phase transitions in bulk is challenging due to the limitations of surface sensitive probes like ARPES. Here, we demonstrate that nonlinear bulk photocurrents, specifically shift and injection currents, serve as effective probes of Z_2 topological transitions. These photocurrents show a robust polarity reversal across the Z_2 phase transition, offering a direct optical signature that distinguishes strong topological phases from weak or trivial ones. This effect originates …

Predicting the resolved CO emission of $z=1-3$ star-forming galaxies
R. Anirudh, Melanie Kaasinen, Gerg\"o Popping, Desika Narayanan, Karolina Garcia, Dariannette Valentin-Martinez
https://arxiv.org/abs/2506.13899

Predicting the resolved CO emission of $z=1-3$ star-forming galaxies
(Abridged) Resolved observations of the CO emission from $z=1-3$ star-forming galaxies are becoming increasingly common, with new high-resolution surveys on the horizon. We aim to inform the interpretation of this resolved CO emission by creating synthetic observations and testing to what extent routinely observed CO transitions can be used to trace H$_2$ across galaxy disks. To this end, we extract $z=1-3$ massive star-forming galaxies (on and above the main sequence) from the SIMBA cosmologic…

Stability and Performance of Online Feedback Optimization for Distribution Grid Flexibility
Florian Klein-Helmkamp, Tina M\"ollemann, Irina Zettl, Andreas Ulbig
https://arxiv.org/abs/2506.13280

Stability and Performance of Online Feedback Optimization for Distribution Grid Flexibility
The integration of distributed energy resources (DERs) into sub-transmission systems has enabled new opportunities for flexibility provision in ancillary services such as frequency and voltage support, as well as congestion management. This paper investigates the stability and performance of Online Feedback Optimization (OFO) controllers in ensuring reliable flexibility provision. A hierarchical control architecture is proposed, emphasizing safe transitions between system states within the Feas…

Tunable plasmon modes and topological transitions in single- and bilayer semi-Dirac materials
Debasmita Giri, John Schliemann, Rafael Molina, Alexander Lopez
https://arxiv.org/abs/2506.12807

Tunable plasmon modes and topological transitions in single- and bilayer semi-Dirac materials
We investigate the plasmonic response of single- and bilayer semi-Dirac materials under the influence of a tunable parameter $δ$ that governs topological transitions via Dirac cone generation/merging and incorporating band inversion terms. For single-layer systems, we demonstrate that the emergence of Dirac cones leads to an enhanced plasmon frequency range and that the plasmonic spectrum exhibits strong anisotropy, especially for finite $δ$ and vanishing inversion terms. In the bilayer confi…

Measuring Semantic Information Production in Generative Diffusion Models
Florian Handke, F\'elix Koulischer, Gabriel Raya, Luca Ambrogioni
https://arxiv.org/abs/2506.10433

Measuring Semantic Information Production in Generative Diffusion Models
It is well known that semantic and structural features of the generated images emerge at different times during the reverse dynamics of diffusion, a phenomenon that has been connected to physical phase transitions in magnets and other materials. In this paper, we introduce a general information-theoretic approach to measure when these class-semantic "decisions" are made during the generative process. By using an online formula for the optimal Bayesian classifier, we estimate the conditional ent…

Some features in 4-level generation in LIPLs
Lev Nagli, Kirill Kulikov, Dima Cheskis
https://arxiv.org/abs/2506.07220 https://arxiv.o…

Some features in 4-level generation in LIPLs
This paper shows that in Laser-Induced Plasma Lasers (LIPL), the collisionally assisted transitions that lead to the inversion population on an upper-generation level E_up may be partly forbidden. The spin-orbit coupling may increase the oscillator strength of such transitions. It also demonstrates that collisions between electrons and excited atoms can strongly increase the atoms' energy, creating a population inversion at the E_up level, which may lie about 1 eV above the …

Scaling and Universality at Noisy Quench Dynamical Quantum Phase Transitions
Saeid Ansari, R. Jafari, Alireza Akbari, Mehdi Abdi
https://arxiv.org/abs/2506.14355

Scaling and Universality at Noisy Quench Dynamical Quantum Phase Transitions
Dynamical quantum phase transitions (DQPTs) have been studied in the extended XY model under both noiseless and noisy linear driven staggered field cases. In the time-independent staggered field case, the model exhibits a single critical point where the transition occurs from the spin-liquid phase to the antiferromagnetic phase. In the noiseless ramp case, unlike the transverse field XY model where DQPT always occurs for a quench crossing the single critical point, there is a critical sweep vel…

Representing Equations of State With Strong First-Order Phase Transitions
Lee Lindblom, Steve M. Lewis, Fridolin Weber
https://arxiv.org/abs/2506.06201 htt…

Representing Equations of State With Strong First-Order Phase Transitions
Parametric representations of the high-density nuclear equation of state are used in constructing models for interpreting the astrophysical observations of neutron stars. This study explores how accurately equations of state with strong first-order phase transitions can be represented using spectral or piecewise analytic methods that assume no {\it{a priori}} knowledge of the location or the strength of the phase transition. The model equations of state used in this study have phase transitions…

Spatially Consistent Air-to-Ground Channel Modeling with Probabilistic LOS/NLOS Segmentation
Evgenii Vinogradov, Abdul Saboor, Zhuangzhuang Cui, Aymen Fakhreddine
https://arxiv.org/abs/2506.12794

Spatially Consistent Air-to-Ground Channel Modeling with Probabilistic LOS/NLOS Segmentation
In this paper, we present a spatially consistent A2G channel model based on probabilistic LOS/NLOS segmentation to parameterize the deterministic path loss and stochastic shadow fading model. Motivated by the limitations of existing Unmanned Aerial Vehicle (UAV) channel models that overlook spatial correlation, our approach reproduces LOS/NLOS transitions along ground user trajectories in urban environments. This model captures environment-specific obstructions by means of azimuth and elevation…

Phase Transition and Diffusion in an Adiabatic Bouncer Model
Luiz Antonio Barreiro
https://arxiv.org/abs/2506.13029 https://arxiv.org…

Phase Transition and Diffusion in an Adiabatic Bouncer Model
This study examines anomalous diffusion and dynamical phase transitions in a nonlinear bouncer model with short-range interactions leading to velocity-dependent (adiabatic) collisions. By varying a control parameter, transitions between superdiffusion, normal diffusion, subdiffusion, and complete dynamical freezing are observed. The phase behavior is characterized via scaling laws and critical exponents, providing a robust framework for understanding the underlying dynamics.

Exploring light-induced phases of 2D materials in a modulated 1D quasicrystal
Yifei Bai, Anna R. Dardia, Toshihiko Shimasaki, David M. Weld
https://arxiv.org/abs/2506.11984

Exploring light-induced phases of 2D materials in a modulated 1D quasicrystal
Illuminating integer quantum Hall matter with polarized light can drive quantum phase transitions. Technical limitations on laser intensity and material purity make such experiments challenging in the solid state. However, the Harper-Hofstadter mapping which relates a two-dimensional integer quantum Hall system to a 1D quasicrystal enables the same polarization-dependent light-induced phase transitions to be observed using a quantum gas in a driven quasiperiodic optical lattice. We report exper…

Phase transitions induced by resonant light: a phenomenological approach
A. Kudlis, L. S. Ricco, H. Sigur{\dh}sson, I. A. Shelykh
https://arxiv.org/abs/2506.05964

Phase transitions induced by resonant light: a phenomenological approach
We present a phenomenological framework to describe a subclass of light-induced phase transitions (LIPTs) in condensed matter systems, specifically those mediated by the resonant generation of excitons. Our approach extends the classical Landau theory by introducing dynamic coupling between the system's order parameter and complex excitonic fields, along with Langevin-type forces that drive the system toward states of minimal free energy. The model is applied in the context of all-optical reson…

Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
Topological Phase Transitions and Mixed State Order in a Hubbard Quantum Simulator

Engineering topological phase transitions via sliding ferroelectricity in MBi2Te4 (M = Ge, Sn, Pb) bilayers
Xinlong Dong, Dan Qiao, Zeyu Li, Zhenhua Qiao, Xiaohong Xu
https://arxiv.org/abs/2506.09317

Engineering topological phase transitions via sliding ferroelectricity in MBi2Te4 (M = Ge, Sn, Pb) bilayers
Materials combining electrically switchable ferroelectricity and tunable topological states hold significant promise for advancing both foundamental quantum phenomena and innovative device architectures. Here, we employ first-principles calculations to systematically investigate the sliding ferroelectricity-mediated topological transitions in bilayer MBi2Te4 (M = Ge, Sn, Pb). By strategically engineering interlayer sliding configurations with oppositely polarized states, we demonstrate reversib…

Decadal sink-source shifts of forest aboveground carbon since 1988
Zhen Qian, Sebastian Bathiany, Teng Liu, Lana L. Blaschke, Hoong Chen Teo, Niklas Boers
https://arxiv.org/abs/2506.11879

Decadal sink-source shifts of forest aboveground carbon since 1988
As enduring carbon sinks, forest ecosystems are vital to the terrestrial carbon cycle and help moderate global warming. However, the long-term dynamics of aboveground carbon (AGC) in forests and their sink-source transitions remain highly uncertain, owing to changing disturbance regimes and inconsistencies in observations, data processing, and analysis methods. Here, we derive reliable, harmonized AGC stocks and fluxes in global forests from 1988 to 2021 at high spatial resolution by integratin…

On the completeness of the $\delta_{KLS}$-generalized statistical field theory
P. R. S. Carvalho
https://arxiv.org/abs/2506.05537 https://

On the completeness of the $δ_{KLS}$-generalized statistical field theory
In this work we introduce a field-theoretic tool that enable us to evaluate the critical exponents of $δ_{KLS}$-generalized systems undergoing continuous phase transitions, namely $δ_{KLS}$-generalized statistical field theory. It generalizes the standard Boltzmann-Gibbs through the introduction of the $δ_{KLS}$ parameter from which Boltzmann-Gibbs statistics is recovered in the limit $δ_{KLS}\rightarrow 0$. From the results for the critical exponents we provide the referred physical interp…

Finding signatures of low-dimensional geometric landscapes in high-dimensional cell fate transitions
Maria Yampolskaya, Laertis Ikonomou, Pankaj Mehta
https://arxiv.org/abs/2506.04219

Finding signatures of low-dimensional geometric landscapes in high-dimensional cell fate transitions
Multicellular organisms develop a wide variety of highly-specialized cell types. The consistency and robustness of developmental cell fate trajectories suggests that complex gene regulatory networks effectively act as low-dimensional cell fate landscapes. A complementary set of works draws on the theory of dynamical systems to argue that cell fate transitions can be categorized into universal decision-making classes. However, the theory connecting geometric landscapes and decision-making classe…

Surface phase behavior, not hydrogen bonding, governs hydrophobic attraction between extended solutes
Nigel B. Wilding, Francesco Turci
https://arxiv.org/abs/2506.09858

Surface phase behavior, not hydrogen bonding, governs hydrophobic attraction between extended solutes
Hydrophobic interactions are central to biological self-assembly and soft matter organization, yet their microscopic origins remain debated. Traditional explanations often attribute the increase in attraction between hydrophobic solutes with increasing temperature to entropy changes resulting from disrupted hydrogen bonding in water. Here, we present a different perspective based on the physics of surface phase transitions, supported by extensive molecular dynamics simulations. Using well-tempe…

Many-body critical non-Hermitian skin effect
Yi Qin, Yee Sin Ang, Ching Hua Lee, Linhu Li
https://arxiv.org/abs/2506.01383 https://ar…

Many-body critical non-Hermitian skin effect
Criticality in non-Hermitian systems unveils unique phase transitions and scaling behaviors beyond Hermitian paradigms, offering new insights into the interplay between gain/loss, non-reciprocity, and complex energy spectra. In this paper, we uncover a new class of many-body critical non-Hermitian skin effect (CSE) originating from the interplay between multiple non-Hermitian pumping channels and Hubbard interactions. In particular, criticality in the real-to-complex transitions can selectively…

Faint absorption of the ground state hyperfine-splitting transitions of hydroxyl at 18 cm in the Galactic Disk
M. R. Rugel, H. Beuther, J. D. Soler, P. Goldsmith, L. Anderson, A. Hafner, J. Dawson, Y. Wang, S. Bihr, H. Wiesemeyer, R. Guesten, M. -Y. Lee, D. Riquelme. A. M. Jacob, W. -J. Kim, M. Busch, S. Khan, A. Brunthaler
https://

Faint absorption of the ground state hyperfine-splitting transitions of hydroxyl at 18 cm in the Galactic Disk
The interstellar hydride hydroxyl (OH) is a potential tracer of CO-dark molecular gas. We present new absorption line observations of OH at 18-cm wavelength towards four continuum sources. We compare these to the [CII] line at 1.9 THz obtained with SOFIA, observations of the neutral atomic hydrogen 21 cm line with the VLA, and CO lines obtained with APEX. We trace OH over a large range of molecular hydrogen column densities, and derive OH abundances with respect to molecular and total hydrogen …

Nearest neighbor permutation entropy detects phase transitions in complex high-pressure systems
Arthur A. B. Pessa, Leonardo G. J. M. Voltarelli, Lucio Cardozo-Filho, Andres G. M. Tamara, Claudio Dariva, Papa M. Ndiaye, Matjaz Perc, Haroldo V. Ribeiro
https://arxiv.org/abs/2506.06516

Nearest neighbor permutation entropy detects phase transitions in complex high-pressure systems
Understanding the high-pressure phase behavior of carbon dioxide-hydrocarbon mixtures is of considerable interest owing to their wide range of applications. Under certain conditions, these systems are not amenable to direct visual monitoring, and experimentalists often rely on spectrophotometric data to infer phase behavior. Consequently, developing computationally efficient and robust methods to leverage such data is crucial. Here, we combine nearest neighbor permutation entropy, computed dire…

Generalized Symmetries Phase Transitions with Local Quantum Fields
Po-Shen Hsin
https://arxiv.org/abs/2506.07688 https://arxiv.org/pd…

Generalized Symmetries Phase Transitions with Local Quantum Fields
Symmetries are important guiding principle for phase transitions. We systematically construct field theory models with local quantum fields that exhibit the following phase transitions: (1) different symmetry protected topological (SPT) phases with generalized symmetries; (2) different symmetry enriched topological (SET) phases with generalized symmetries differ by symmetry fractionalizations; (3) spontaneously broken generalized symmetries, where the unbroken phases can have nontrivial SPT or …

Primordial Black Holes are 5D
Luis A. Anchordoqui, Alek Bedroya, Dieter L\"ust
https://arxiv.org/abs/2506.14874 https://arxiv.or…

Primordial Black Holes are 5D
We revisit well-established mechanisms for primordial black hole (PBH) production, namely inflation, phase transitions, and cosmic strings, in the context of the Dark Dimension Scenario, which is motivated by Swampland principles. Applying quantum gravity constraints, we demonstrate that any viable mechanism, barring exotic new physics at low energies, inevitably leads to the formation of five-dimensional PBHs. We further show that PBHs formed from cosmic strings can have lifetimes comparable t…

Graphene Nanoribbons as a Majorana Platform
Ruize Ma, Michele Pizzochero, Gaurav Chaudhary
https://arxiv.org/abs/2506.14999 https://a…

Graphene Nanoribbons as a Majorana Platform
Graphene nanoribbons support a range of electronic phases that can be controlled via external stimuli. Zigzag-edged graphene nanoribbons (ZGNRs), in particular, exhibit an antiferromagnetic insulating ground state that transitions to a half-metallic phase under a transverse electric field or when embedded inside hexagonal Boron Nitride. Here, we consider a simple model of a heterostructure of a ZGNR with an Ising superconductor and show that, the Ising superconductor with a parent s-wave spin-s…

The Role of Connection Density in an Adaptive Network with Chaotic Units
Ramiro Pl\"uss, Pablo Mart\'in Gleiser
https://arxiv.org/abs/2505.11437 h…

The Role of Connection Density in an Adaptive Network with Chaotic Units
We investigate the role of connection density in an adaptive network model of chaotic units that dynamically rewire based on their internal states and local coherence. By systematically varying the network's connectivity density, we uncover distinct dynamical regimes and structural transitions, revealing mechanisms of spontaneous modularity, dynamical segregation, and integration. We find that at higher densities, the network exhibits both local clustering and global synchrony. Additionally, we…

Systematic study of charm meson M1 radiative transitions
Binesh Mohan, Christas Mony A., Rohit Dhir
https://arxiv.org/abs/2506.10560 https://

Systematic study of charm meson M1 radiative transitions
Motivated by recent experimental advancements in the study of radiative decays of charmed mesons, we investigate the magnetic (transition) moments of vector mesons by applying the effective mass scheme, obtained from the one-gluon exchange interaction between quark-antiquark pairs. By incorporating high-precision experimental data from both heavy and light flavor sectors, we accurately account for the strong hyperfine interaction contributions to the quark and antiquark masses within mesons. We…

Asymptotic Fate of Continuously Monitored Quantum Systems
Finn Schmolke
https://arxiv.org/abs/2506.10873 https://arxiv.org/pdf/2506.1…

Asymptotic Fate of Continuously Monitored Quantum Systems
A quantum trajectory is the natural response of a quantum system subject to external perturbations due to continuous indirect measurement. We completely characterize the asymptotic behavior of continuously monitored quantum systems in finite dimensions and show that generically, spontaneous irreversible localization transitions on the level of individual realizations occur, where the evolution becomes effectively constrained to one of the irreducible components of the total Hilbert space. More …

This https://arxiv.org/abs/2309.00747 has been replaced.
initial toot: https://mastoxiv.page/@a…

Microscopic scales and mechanism of quantum phase transitions in two-dimensional superconducting systems
The superconducting ground state in many two-dimensional materials can be created or destroyed through quantum phase transitions (QPTs) controlled by non-thermal parameters such as carrier density or magnetic field. While various mechanisms for these QPTs have been proposed, it remains unclear which, if any, are applicable to a specific two-dimensional superconducting system. Here, we find that a pair-breaking mechanism which suppresses the Cooper pair density gives a unifying description of ma…

Bose-Hubbard Model on a Honeycomb Superlattice: Quantum Phase Transitions and Lattice Effects
Wei-Wei Wang, Jin Yang, Jian-Ping Lv, Chao Zhang
https://arxiv.org/abs/2506.06984

Bose-Hubbard Model on a Honeycomb Superlattice: Quantum Phase Transitions and Lattice Effects
We investigate the ground-state and finite-temperature phase diagrams of the Bose-Hubbard model on a honeycomb superlattice. The interplay between the superlattice potential depth $Δ/t$ and the onsite interaction $U/t$ gives rise to three distinct quantum phases at zero temperature: a superfluid phase, a Mott insulator I phase with unit filling on each site, and a Mott insulator II phase characterized by density imbalance-double occupancy on one sublattice and vacancy on the other at unit fill…

This https://arxiv.org/abs/2411.04869 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Modelling of the atomic lines' emission of fast moving pulsar nebulae
Bow shocks generated by pulsars moving through weakly ionized interstellar medium (ISM) produce emission dominated by non-equilibrium atomic transitions. These bow shocks are primarily observed as H$_α$ nebulae. We developed a package, named Shu, that calculates non-LTE intensity maps in more than 150 spectral lines, taking into account geometrical properties of the pulsars' motion and lines of sight. We argue here that atomic (CI, NI, OI) and ionic (SII, NII, OIII, NeIV) transitions can be us…

Adsorbate phase transitions on nanoclusters from nested sampling
Thanawitch Chatbipho, Ray Yang, Robert B. Wexler, Livia B. P\'artay
https://arxiv.org/abs/2506.01295

Adsorbate phase transitions on nanoclusters from nested sampling
Nested sampling was employed to investigate adsorption equilibria on the truncated-octahedral Lennard-Jones nanocluster LJ$_{38}$ while systematically varying adsorbate-surface well depth and Lennard-Jones size parameters. Evaluation of the canonical partition function over a wide temperature range identifies two successive phase transitions: (i) condensation of the gas phase onto the cluster surface at higher temperatures, and (ii) lateral rearrangement of the adsorbed layer at lower temperatu…

Laser Stabilised Ionising Transitions
Erika Cortese, Simone De Liberato
https://arxiv.org/abs/2506.10183 https://arxiv.org/pdf/2506.1…

Ultrafast interband transitions in nanoporous gold metamaterial
Tlek Tapani, Jonas M. Pettersson, Nils Henriksson, Erik Z\"all, Nils V. Hauff, Lakshmi Das, Gianluca Balestra, Massimo Cuscun\`a, Aitor De Andr\'es, Tommaso Giovannini, Denis Garoli, Nicol\`o Maccaferri
https://arxiv.org/abs/2506.08536

Ultrafast interband transitions in nanoporous gold metamaterial
Nanoporous metals have emerged as promising functional architectures due to their tunable optical and electronic properties, high surface areas, and versatile use in real-life applications such as sensing, catalysis, and biomedicine. While the optical and morphological properties of nanoporous metals have been extensively studied, their electronic properties at ultrafast timescales remain largely unexplored. Here, we study the transient response of a nanoporous gold metamaterial and compare it …

Replaced article(s) found for physics.chem-ph. https://arxiv.org/list/physics.chem-ph/new
[1/1]:
Nudged-Elastic Band Calculations of Polymorph Transitions and Solid-State Reactions in Molecular ...

Complete universal scaling of first-order phase transitions in the two-dimensional Ising model
Yuxiang Zhang, Fan Zhong
https://arxiv.org/abs/2506.00515 ht…

Complete universal scaling of first-order phase transitions in the two-dimensional Ising model
Phase transitions, as one of the most intriguing phenomena in nature, are divided into first-order phase transitions (FOPTs) and continuous ones in current classification. While the latter shows striking phenomena of scaling and universality, the former has recently also been demonstrated to exhibit scaling and universal behavior within a mesoscopic, coarse-grained Landau-Ginzburg theory. Here we apply this theory to a microscopic model -- the paradigmatic Ising model, which undergoes FOPTs bet…

Machine Learning-Guided Discovery of Temperature-Induced Solid-Solid Phase Transitions in Inorganic Materials
Cibr\'an L\'opez, Joshua Ojih, Ming Hu, Josep Lluis Tamarit, Edgardo Saucedo, Claudio Cazorla
https://arxiv.org/abs/2506.01449

Machine Learning-Guided Discovery of Temperature-Induced Solid-Solid Phase Transitions in Inorganic Materials
Predicting solid-solid phase transitions remains a long-standing challenge in materials science. Solid-solid transformations underpin a wide range of functional properties critical to energy conversion, information storage, and thermal management technologies. However, their prediction is computationally intensive due to the need to account for finite-temperature effects. Here, we present an uncertainty-aware machine-learning-guided framework for high-throughput prediction of temperature-induce…

Machine Learning Left-Right Breaking from Gravitational Waves
William Searle, Csaba Bal\'azs, Yang Xiao, Yang Zhang
https://arxiv.org/abs/2506.09319 ht…

Machine Learning Left-Right Breaking from Gravitational Waves
First-order phase transitions in the early universe can generate stochastic gravitational waves (GWs), offering a unique probe of high-scale particle physics. The Left-Right Symmetric Model (LRSM), which restores parity symmetry at high energies and naturally incorporates the seesaw mechanism, allows for such transitions -- particularly during the spontaneous breaking of $SU(2)_R \times SU(2)_L \times U(1)_{B-L} \to SU(2)_L \times U(1)_Y$. This initial step, though less studied, is both theoret…

Accelerating quantum adiabatic evolution with $\pi$-pulse sequences
Tonghao Xing, Jiang Zhang, Guilu Long
https://arxiv.org/abs/2506.09320 https://

Accelerating quantum adiabatic evolution with $π$-pulse sequences
In quantum information processing, the development of fast and robust control schemes remains a central challenge. Although quantum adiabatic evolution is inherently robust against control errors, it typically demands long evolution times. In this work, we propose to achieve rapid adiabatic evolution, in which nonadiabatic transitions induced by fast changes in the system Hamiltonian are mitigated by flipping the nonadiabatic transition matrix using $π$ pulses. This enables a faster realizatio…

High-Throughput Computation of Anharmonic Low-Frequency Protein Vibrations
Michael A. Sauer, Souvik Mondal, Madeline Cano, Matthias Heyden
https://arxiv.org/abs/2506.15109

High-Throughput Computation of Anharmonic Low-Frequency Protein Vibrations
At room temperature, low frequency vibrations at far-infrared frequencies are thermally excited ($k_B T > h ν$) and not restricted to harmonic fluctuations around a single potential energy minimum. For folded proteins, these intrinsically anharmonic vibrations can contain information on slow conformational transitions. Recently, we have developed FREquency-SElective ANharmonic (FRESEAN) mode analysis, a method based on time correlation functions that isolates low-frequency vibrational motions …

Multi-step Strong First-Order Electroweak Phase Transitions in the Inverted Type-I 2HDM: Parameter Space, Gravitational Waves, and Collider Phenomenology
Soojin Lee, Dongjoo Kim, Jin-Hwan Cho, Jinheung Kim, Jeonghyeon Song
https://arxiv.org/abs/2506.03260

Multi-step Strong First-Order Electroweak Phase Transitions in the Inverted Type-I 2HDM: Parameter Space, Gravitational Waves, and Collider Phenomenology
We investigate the nature of the electroweak phase transition (EWPT) in the Type-I two-Higgs-doublet model under the inverted Higgs scenario, where the observed 125 GeV Higgs boson corresponds to the heavier \textit{CP}-even scalar. We systematically map the parameter space viable for strong first-order EWPTs (SFOEWPTs) under current theoretical and experimental constraints, revealing that such transitions can occur through one-step, two-step, and rarely three-step pathways with distinct phenom…

Anyon delocalization transitions out of a disordered FQAH insulator
Zhengyan Darius Shi, T. Senthil
https://arxiv.org/abs/2506.02128 https://

Anyon delocalization transitions out of a disordered FQAH insulator
Motivated by the experimental discovery of the fractional quantum anomalous Hall (FQAH) effect, we develop a theory of doping-induced transitions out of the $ν= 2/3$ lattice Jain state in the presence of quenched disorder. We show that disorder strongly affects the evolution into the conducting phases described in our previous work. The delocalization of charge $2/3$ anyons leads to a chiral topological superconductor through a direct second order transition for a smooth random potential with …

Universal Phase Transitions of Matter Induced in Optically Driven Cavities
Tsan Huang, Zhiyuan Sun
https://arxiv.org/abs/2505.24318 https://

Universal Phase Transitions of Matter Induced in Optically Driven Cavities
Optical cavities have been widely applied to manipulate the properties of solid state materials inside it. We propose that in systems embedded within optical cavities driven by incident pump light, the pump induces generic phase transitions into new non-equilibrium steady states. This effect arises from the ponderomotive potential, the effective static potential exerted by the pump on the low energy degrees of freedom, which exhibits a universal step-like structure that pushes the matter degree…

This https://arxiv.org/abs/2506.06149 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_…

Faint absorption of the ground state hyperfine-splitting transitions of hydroxyl at 18 cm in the Galactic Disk
The interstellar hydride hydroxyl (OH) is a potential tracer of CO-dark molecular gas. We present new absorption line observations of OH at 18-cm wavelength towards four continuum sources. We compare these to the [CII] line at 1.9 THz obtained with SOFIA, observations of the neutral atomic hydrogen 21 cm line with the VLA, and CO lines obtained with APEX. We trace OH over a large range of molecular hydrogen column densities, and derive OH abundances with respect to molecular and total hydrogen …

The QUEST Database of Highly-Accurate Excitation Energies
Pierre-Fran\c{c}ois Loos, Martial Boggio-Pasqua, Aymeric Blondel, Filippo Lipparini, Denis Jacquemin
https://arxiv.org/abs/2506.11590

The QUEST Database of Highly-Accurate Excitation Energies
We report theoretical best estimates of vertical transition energies (VTEs) for a large number of excited states and molecules: the \textsc{quest} database. This database includes 1489 \emph{aug}-cc-pVTZ VTEs (731 singlets, 233 doublets, 461 triplets, and 64 quartets) for both valence and Rydberg transitions occurring in molecules containing from 1 to 16 non-hydrogen atoms. \textsc{Quest} also includes a significant list of VTEs for states characterized by a partial or genuine double-excitation…

Faceting transition in aluminum as a grain boundary phase transition
Yoonji Choi, Tobias Brink
https://arxiv.org/abs/2506.13550 https://

Faceting transition in aluminum as a grain boundary phase transition
Grain boundaries facet due to anisotropic grain boundary energies: While the faceted boundary has a larger area than the corresponding straight boundary, a significantly lower energy of the facets compared to a straight segment can drive the faceting. This picture is complicated by faceting/defaceting transitions where the free energy difference between the two states depends on the temperature. Here, we use atomistic computer simulations to show how such a transition in a $Σ3$ $[11\overline{1…

Topology meets symmetry breaking: Hidden order, intrinsically gapless topological states and finite-temperature topological transitions
Reja H. Wilke, Henning Schl\"omer, Simon M. Linsel, Annabelle Bohrdt, Fabian Grusdt
https://arxiv.org/abs/2506.03146

Topology meets symmetry breaking: Hidden order, intrinsically gapless topological states and finite-temperature topological transitions
Since the discovery of phase transitions driven by topological defects, the classification of phases of matter has been significantly extended beyond Ginzburg and Landau's paradigm of spontaneous symmetry breaking (SSB). In particular, intrinsic and symmetry-protected topological (SPT) orders have been discovered in (mostly gapped) quantum many-body ground states. However, these are commonly viewed as zero-temperature phenomena, and their robustness in a gapless ground state or against thermal …

This https://arxiv.org/abs/2103.02626 has been replaced.
link: https://scholar.google.com/scholar?q=a

Coherent and dissipative dynamics at quantum phase transitions
The many-body physics at quantum phase transitions shows a subtle interplay between quantum and thermal fluctuations, emerging in the low-temperature limit. In this review, we first give a pedagogical introduction to the equilibrium behavior of systems in that context, whose scaling framework is essentially developed by exploiting the quantum-to-classical mapping and the renormalization-group theory of critical phenomena at continuous phase transitions. Then we specialize to protocols entailing…

A low-loss telecom-band nanofiber cavity for interfacing Yb atomic qubits
Seitaro Horikawa, Shinya Kato, Ryotaro Inoue, Takao Aoki, Akihisa Goban, Hideki Konishi
https://arxiv.org/abs/2506.06123

A low-loss telecom-band nanofiber cavity for interfacing Yb atomic qubits
We demonstrate the fabrication of an optical nanofiber cavity designed for efficient interface with ytterbium (Yb) atoms at telecom-wavelength transitions. Replacing the conventional hydrogen-oxygen flame with a deuterium-oxygen flame in the heat-and-pull method suppresses hydroxyl-induced absorption losses and enables low-loss nanofiber production with minimal modifications to the existing fabrication system. Using this technique, we fabricate a nanofiber cavity at 1389 nm that exhibits an int…

This https://arxiv.org/abs/2506.00408 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Old Quantum Mechanics by Bohr and Sommerfeld from a Modern Perspective
We review Bohr's atomic model and its extension by Sommerfeld from a mathematical perspective of wave mechanics. The derivation of quantization rules and energy levels is revisited using semiclassical methods. Sommerfeld-type integrals are evaluated by elementary techniques, and connections with the Schrödinger and Dirac equations are established. Historical developments and key transitions from classical to quantum theory are discussed to clarify the structure and significance of the old quan…

Sliding Ferroelectrics Induced Hybrid-Order Topological Phase Transitions
Ning-Jing Yang, Jian-Min Zhang, Xiao-Ping Li, Zeying Zhang, Zhi-Ming Yu, Zhigao Huang, Yugui Yao
https://arxiv.org/abs/2506.01402

Sliding Ferroelectrics Induced Hybrid-Order Topological Phase Transitions
We propose ferroelectric layer sliding as a new approach to realize and manipulate topological quantum states in two-dimensional (2D) bilayer magnetic van der Waals materials. We show that stacking monolayer ferromagnetic topological states into layer-spin-locked bilayer antiferromagnetic structures, and introducing sliding ferroelectricity leads to asynchronous topological evolution of different layers (spins) owing to existence of polarization potentials, thereby giving rise to rich layer-res…

Excitations and dynamical structure factor of $J_1-J_2$ spin-$3/2$ and spin-$5/2$ Heisenberg spin chains
Aman Sharma, Mithilesh Nayak, Natalia Chepiga, Fr\'ed\'eric Mila
https://arxiv.org/abs/2506.13431

Excitations and dynamical structure factor of $J_1-J_2$ spin-$3/2$ and spin-$5/2$ Heisenberg spin chains
We study the dynamical structure factor of the frustrated spin-$3/2$ $J_1$-$J_2$ Heisenberg chains, with particular focus on the partially dimerized phase that emerges between two Kosterlitz-Thouless transitions. Using a valence bond solid ansatz corroborated by density matrix renormalization group simulations, we investigate the nature of magnon and spinon excitations through the single-mode approximation. We show that the magnon develops an incommensurate dispersion at $J_2 \approx 0.32J_1$, …

Navigating Phase Transitions with Path-Finding Algorithms: A Strategic Approach to Replica Exchange Monte Carlo
Akie Kowaguchi, Katsuhiro Endo, Kentaro Nomura, Shuichi Kurabayashi, Paul E. Brumby, Kenji Yasuoka
https://arxiv.org/abs/2506.02549

Navigating Phase Transitions with Path-Finding Algorithms: A Strategic Approach to Replica Exchange Monte Carlo
The replica exchange method is a powerful tool for overcoming slow relaxation in molecular simulations, but its efficiency depends strongly on the choice of the number and interval of replicas and their exchange probabilities. Here, we propose a new optimization scheme based on the Dijkstra algorithm that constructs an optimal exchange path by representing replicas and their exchange probabilities as a graph. Inspired by path-finding techniques widely used in computer science, including applica…

RG evolution and effect of intermediate new physics on $\Delta B=2$ six-quark operators
Mathew Thomas Arun, Shyam M, Ritik Pal
https://arxiv.org/abs/2506.10105

RG evolution and effect of intermediate new physics on $ΔB=2$ six-quark operators
The recent identification of possible 11 neutron-antineutron ($n$-$\bar{n}$) oscillation candidate events at Super-Kamiokande has renewed the interest in $ΔB = 2$ transitions. In this work, we analyze the Renormalization Group (RG) running of mass dimension-9 six-quark operators, in $\bar{MS}$ scheme, that generate processes like $nn\to π^0π^0$, deuteron decay, $n$-$\bar{n}$ oscillations etc, evolving them from the electroweak scale to baryon number violating scale ($\mathcal{O}(10^3~\text{T…

Quantum magnetotransport in monolayer $\mathrm{Pt_{2}HgSe_{3}}$
Muzamil Shah, Imtiaz Khan, Kashif Sabeeh, Muhammad Sabieh Anwar, Reza Asgari
https://arxiv.org/abs/2506.10697

Quantum magnetotransport in monolayer $\mathrm{Pt_{2}HgSe_{3}}$
We present a theoretical framework to investigate quantum magnetotransport in monolayer jacutingaite, focusing on its response to external electric fields and off-resonant circularly polarized laser irradiation. Our analysis reveals a sequence of topological phase transitions triggered by tuning these external parameters. We find that the zeroth LL exhibits spin- and valley-polarized splitting, leading to four distinct peaks in the DOSs for the $K$ and $K'$ valleys. Using the Kubo formalism, we…

Charge Ordering in out-of-plane Boron Doped Reduced Graphene Oxide
Saikat Sarkar, Rajarshi Roy, Bikram Kumar Das, Suman Chatterjee, Kalyan Kumar Chattopadhyay
https://arxiv.org/abs/2506.09567

Charge Ordering in out-of-plane Boron Doped Reduced Graphene Oxide
Symmetry-breaking phase transitions analogous to superconductivity (SC), charge ordering (CO) etc. in metal-intercalated graphene are favorable resulting from modified electronic and phonon band structures. Strong carrier-lattice interaction evolved from the out-of-plane soft vibrations with accumulation of charges at the out-of-plane region, can set a favorable environment for CO in graphene system. Here, we employ boron-doped reduced graphene oxide (BG) to acquire charge-ordered state above a…

Ising versus infinite randomness criticality in arrays of Rydberg atoms trapped with non-perfect tweezers
Jose Soto-Garcia, Natalia Chepiga
https://arxiv.org/abs/2506.11985

Ising versus infinite randomness criticality in arrays of Rydberg atoms trapped with non-perfect tweezers
Chains of Rydberg atoms have emerged as an amazing platform for simulating quantum physics in low dimensions. This remarkable success is due to the versatility of lattice geometries achieved by trapping neutral atoms with optical tweezers. On a given lattice, the competition between the repulsive van der Waals potential and the detuning of the laser frequency brings the atoms to highly excited Rydberg states, leading to a variety of exotic phases and quantum phase transitions. Experiments on th…

This https://arxiv.org/abs/2504.15265 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_qu…

Realization of maximally-entangling two-qutrit gates using the Cross-Resonance scheme
In this letter, we present a comprehensive theoretical framework for realizing maximally entangling two-qutrit gates on fixed-frequency transmons that generalize the qubit-centric cross-resonance (CR) interaction beyond the 0-1 subspace, which we call as generalized cross-resonance (GCR) scheme. We use the GCR scheme to design parametric two-qutrit gates, namely, $U_{CR}^{01}$ and $U_{CR}^{12}$, that act on the $0{-}1$ and $1{-}2$ energy transitions of transmons, respectively. Our gates improve…

Automated All-RF Tuning for Spin Qubit Readout and Control
Cornelius Carlsson, Jaime Saez-Mollejo, Federico Fedele, Stefano Calcaterra, Daniel Chrastina, Giovanni Isella, Georgios Katsaros, Natalia Ares
https://arxiv.org/abs/2506.10834

Automated All-RF Tuning for Spin Qubit Readout and Control
Efficient tuning of spin qubits remains a major bottleneck in scaling semiconductor quantum dot-based quantum processors. A key challenge is the rapid identification of gate voltage regimes suitable for qubit initialisation, control, and readout. Here, we leverage radio-frequency charge sensing to automate spin qubit tuning, achieving a median tuning time of approximately 15 minutes. In a single continuous run, our routine identifies spin qubits at 12 distinct charge transitions in under 17 hou…

Anyon superconductivity and plateau transitions in doped fractional quantum anomalous Hall insulators
Pavel A. Nosov, Zhaoyu Han, Eslam Khalaf
https://arxiv.org/abs/2506.02108

Anyon superconductivity and plateau transitions in doped fractional quantum anomalous Hall insulators
Recent experiments reported evidence of superconductivity and re-entrant integer quantum anomalous Hall (RIQAH) insulator upon doping the $ν_e = 2/3$ fractional quantum anomalous Hall states (FQAH) in twisted MoTe${}_2$, separated by narrow resistive regions. Anyons of a FQAH generally have a finite effective mass, and when described by anyon-flux composite fermions (CF), experience statistical magnetic fields with a commensurate filling. Here, we show that most of the experimental observation…

Radiative decays of $P$-wave charmed baryons in the $SU(3)$ flavor $\bf6_F$ representation
Xuan Luo, Hua-Xing Chen, Er-Liang Cui, Hui-Min Yang, Dan Zhou, Zhi-Yong Zhou
https://arxiv.org/abs/2506.08335

Radiative decays of $P$-wave charmed baryons in the $SU(3)$ flavor $\bf6_F$ representation
We perform a comprehensive investigation of the radiative decays of $P$-wave charmed baryons in the $SU(3)$ flavor $\mathbf{6}_F$ representation, employing the light-cone QCD sum rule approach within the framework of heavy quark effective theory. We analyze their electromagnetic transitions into ground-state charmed baryons via photon emission. When combined with the mass spectra and strong decay properties previously studied in Ref.~\cite{Yang:2021lce}, our results constitute a systematic and …

Coherent polarization self-rotation
Roy Shaham, Orr Meron, Or Katz, Dimitry Yankelev, Ofer Firstenberg
https://arxiv.org/abs/2506.01892 https://

Coherent polarization self-rotation
We introduce and study coherent polarization self-rotation (CPSR), a two-photon light-matter interaction in dense alkali-metal vapors that enables both narrowband optical spectroscopy of magnetic transitions and coherent coupling between light and collective atomic spins. Unlike conventional polarization self-rotation, CPSR requires initial spin polarization and a predominantly linearly polarized probe. It operates efficiently even in optically thick vapors with high buffer-gas pressure, rapid …

Nucleation kinetics in phase transformations with spatially correlated nuclei
M. Tomellini
https://arxiv.org/abs/2506.08515 https://a…

Nucleation kinetics in phase transformations with spatially correlated nuclei
Phase transitions ruled by nucleation and growth can occur by nonrandom arrangement of nuclei. This is verified, for instance, in thin film growth at solid surfaces by vapor condensation or by electrodeposition where, around each nucleus, a depletion zone of reactants sets up within which nucleation is prevented. In this contribution, a theoretical approach for the kinetics of phase transition with spatially correlated nuclei by progressive nucleation is developed. The work focuses on the rate …

Spectroscopy and Decay Properties of Excited Charmonium States
Zi-Yue Cui, Hao Chen, Cheng-Qun Pang, Zhi-Feng Sun
https://arxiv.org/abs/2506.06652 https://…

Spectroscopy and Decay Properties of Excited Charmonium States
In this work, we investigate the mass spectra of excited charmonia employing a nonrelativistic potential model with screening effect, and analyze their two-body strong decay, two-photon decay, leptonic decay, and hadronic transitions. Especially, we find that the newly observed resonances $X(4160)$, $Y(4500)$, and $Y(4710)$ can be identified as $3^3P_0$, $3^3D_1$, and $4^3D_1$ states, respectively. We also predict the masses and the widths of higher excited states in the charmonia family.

Neel order, spin-spiral, and spin liquid ground state in frustrated three dimensional system CaMn2P2: A DFT U and spin dynamics study
Bidyut Mallick, Sk. Soyeb Ali, S. K. Panda
https://arxiv.org/abs/2506.10254

Neel order, spin-spiral, and spin liquid ground state in frustrated three dimensional system CaMn2P2: A DFT+U and spin dynamics study
We investigate the magnetic ground state and phase transitions in the frustrated three-dimensional system CaMn2P2 using first-principles calculations combined with spin-dynamics simulations. Our DFT+U calculations reveal that CaMn2P2 exhibits an indirect gap semiconducting ground state with a localized Mn2+ electronic configuration and negligible spin-orbit coupling effects. The computed exchange interactions show that the magnetic behavior is well described by a isotropic Heisenberg Hamiltonia…

A Heuristic Study of Temperature: Quantum Circuitry in Thermal Systems
HongZheng Liu, YiNuo Tian, Zhiyue Wu
https://arxiv.org/abs/2506.06994 https://

A Heuristic Study of Temperature: Quantum Circuitry in Thermal Systems
Classical thermodynamic singularities at phase transitions and in negative-temperature regimes arise because the equal-a-priori probability postulate overlooks the quantum dynamical complexity required to prepare microstates. We promote bounded dynamical complexity to a postulate and develop Complexity Windowed Thermodynamics (CWT). Introducing a finite complexity budget yields the windowed entropy, an entropy of ignorance that is smooth in energy and monotonically non-increasing in the budget.…

This https://arxiv.org/abs/2504.14014 has been replaced.
initial toot: https://mastoxiv.page/@arXiv_hepp…

Hunting for a 17 MeV particle coupled to electrons
We discuss a set of precision observables that can probe the existence of a light particle $X$ coupled to electrons in the mass range of 1--100 MeV. As a case study, we consider the recent excess of $e^+e^-$ final-state events at $\sqrt{s} = 16.9$ MeV reported by the PADME collaboration. Interestingly, this mass is tantalizingly close to the invariant mass at which anomalous $e^+e^-$ pair production has previously been observed in nuclear transitions from excited to ground states by the ATOMKI …

Dominant Kitaev interaction and field-induced quantum phase transitions in triangular-lattice KCeSe2
Mingtai Xie, Zheng Zhang, Weizhen Zhuo, Wei Xu, Jinfeng Zhu, Jan Embs, Lei Wang, Zikang Li, Huanpeng Bu, Anmin Zhang, Feng Jin, Jianting Ji, Zhongwen Ouyang, Liusuo Wu, Jie Ma, Qingming Zhang
https://arxiv.org/abs/2505.23502

Dominant Kitaev interaction and field-induced quantum phase transitions in triangular-lattice KCeSe2
Realizing Kitaev interactions on triangular lattices offers a compelling platform for exploring quantum-spin-liquid physics beyond the conventional honeycomb lattice framework. Here, we investigate the triangular-lattice antiferromagnet KCeSe2, where multiple probes reveal strong magnetic anisotropy suggesting significant Kitaev physics. Through detailed and combined analysis of magnetization, neutron scattering, and thermodynamic experiments, we identify dominant ferromagnetic Kitaev ($K = -1.…

Temperature-Noise Interplay in a Coupled Model of Opinion Dynamics
Anna Chmiel, Julian Sienkiewicz
https://arxiv.org/abs/2506.07680 https://

Temperature-Noise Interplay in a Coupled Model of Opinion Dynamics
We consider a coupled system mimicking opinion formation under the influence of a group of $q$ neighbors ($q$-lobby) that consists of an Ising part governed by temperature-like parameter $T$ and a voter dynamics parameterized by noise probability $p$ (independence of choice). Using rigorous analytical calculations backed by extensive Monte Carlo simulations, we examine the interplay between these two quantities. Based on the theory of phase transitions, we derive the relation between $T$ and $p…