Tootfinder

Causal Decompositions of 1D Quantum Cellular Automata
Augustin Vanrietvelde, Octave Mestoudjian, Pablo Arrighi
https://arxiv.org/abs/2506.22219 https://

Causal Decompositions of 1D Quantum Cellular Automata
Understanding quantum theory's causal structure stands out as a major matter, since it radically departs from classical notions of causality. We present advances in the research program of causal decompositions, which investigates the existence of an equivalence between the causal and the compositional structures of unitary channels. Our results concern one-dimensional Quantum Cellular Automata (1D QCAs), i.e. unitary channels over a line of $N$ quantum systems (with or without periodic boundar…

Two-Dimensional Nonseparable Fractional Fourier Transform: Theory and Application
Daxiang Li, Zhichao Zhang, Wei Yao
https://arxiv.org/abs/2507.21511 https://

Two-Dimensional Nonseparable Fractional Fourier Transform: Theory and Application
The one-dimensional (1D) fractional Fourier transform (FRFT) generalizes the 1D Fourier transform, offering significant advantages in time-frequency analysis of non-stationary signals. To extend the benefits of the 1D FRFT to higher-dimensional signals, 2D FRFTs, such as the 2D separable FRFT (SFRFT), gyrator transform (GT), and coupled FRFT (CFRFT), have been developed. However, existing 2D FRFTs suffer from several limitations: (1) a lack of theoretical uniformity and general applicability, (…

Exceptional thermoelectric properties in Na$_2$TlSb enabled by quasi-1D band structure
{\O}ven A. Grimenes (Norwegian University of Life Sciences), Ole M. L{\o}vvik (SINTEF Sustainable Energy Technology), Kristian Berland (Norwegian University of Life Sciences)
https://arxiv.org/abs/2506.22167

Exceptional thermoelectric properties in Na$_2$TlSb enabled by quasi-1D band structure
Quasi-low-dimensional band structures in bulk high-symmetry materials can exhibiting density of states (DOS) profiles akin to those of low-dimensional materials. A particular striking example is the full-Heusler compound Na$_2$TlSb, with valence band energy isosurfaces consisting of intersecting 2D-dimensional pockets forming a box-like structure, with the sides individually akin to the energy isosurfaces arising in one-dimensional (1D) quantum wells. The combination of high velocities and rapi…

Active spin model for cell assemblies on 1D substrates
Harshal Potdar, Ignacio Pagonabarraga, Sudipto Muhuri
https://arxiv.org/abs/2507.22639 https://arxiv…

Active spin model for cell assemblies on 1D substrates
The experimental use of micropatterned quasi-1D substrates has emerged as an useful experimental tool to study the nature of cell-cell interactions and gain insight on collective behaviour of cell colonies. Inspired by these experiments, we propose an active spin model to investigate the emergent properties of the cell assemblies. The lattice gas model incorporates the interplay of self-propulsion, polarity directional switching, intra-cellular attraction, and contact Inhibition Locomotion (CIL…

So ich folge nun BlueSky by Script.

Inverse Mobius Spacetime in 1 1D Quantum Gravity: Functional Analytic Structures, Dirac Spectrum, and Pin Geometry
Anik Chakraborty
https://arxiv.org/abs/2507.22417 https://

Inverse Mobius Spacetime in 1+1D Quantum Gravity: Functional Analytic Structures, Dirac Spectrum, and Pin Geometry
In this manuscript, we formulate a (1+1)-dimensional Jackiw-Teitelboim gravity toy model whose Euclidean spacetime manifold is the Möbius band $M$. Since $M$ is non-orientable, the relevant spin-statistics structure is Pin rather than Spin. To emphasize the role of orientation reversal, we refer to the universal orientable cover $\widetilde{M}$ as the inverse Möbius band, which resolves the Möbius twist into an infinite ribbon equipped with a $\mathbb{Z}$ deck action. We compute the Stiefel-…

Masked Autoencoders for Ultrasound Signals: Robust Representation Learning for Downstream Applications
Immanuel Ro{\ss}teutscher, Klaus S. Drese, Thorsten Uphues
https://arxiv.org/abs/2508.20622

Masked Autoencoders for Ultrasound Signals: Robust Representation Learning for Downstream Applications
We investigated the adaptation and performance of Masked Autoencoders (MAEs) with Vision Transformer (ViT) architectures for self-supervised representation learning on one-dimensional (1D) ultrasound signals. Although MAEs have demonstrated significant success in computer vision and other domains, their use for 1D signal analysis, especially for raw ultrasound data, remains largely unexplored. Ultrasound signals are vital in industrial applications such as non-destructive testing (NDT) and stru…

Continuous symmetry breaking in 1D spin chains and 1 1D field theory
Adam Nahum
https://arxiv.org/abs/2506.21540 https://arxiv.org/pd…

Continuous symmetry breaking in 1D spin chains and 1+1D field theory
We argue that ground states of 1D spin chains can spontaneously break U(1) ``easy-plane'' spin rotation symmetry, via true long-range order of $(S^x, S^y)$, at the phase transition between two quasi-long-range-ordered phases. The critical point can be reached by tuning a single parameter in a Hamiltonian with the same symmetry as the XXZ model, without further fine-tuning. Equivalently, it can arise in systems of bosons with particle-hole symmetry, as a long-range-ordered transition point betwe…

Kilka zdjęć z TromsŸ, fajne miasto turystyczne ale nie zostaliśmy długo.

Poszliśmy na pŸlse (hotdoga), który był mniej smaczny niż na stacji i o wiele droższy. Liczyliśmy potem w restauracji na zupę rybną, ale było menu letnie i dostaliśmy Lasagne, która jak można się spodziewać na północy nie smakowała niczym poza przyprawami. W starej kawiarnii lokalnej od pokoleń, pracowali sami studenci i nie było lokalnych wypieków, a kawa nawet nie była z norweskiej palarni, więc tego no...

…

A Lightweight Deep Learning-based Model for Ranking Influential Nodes in Complex Networks
Mohammed A. Ramadhan, Abdulhakeem O. Mohammed
https://arxiv.org/abs/2507.19702 https://…

A Lightweight Deep Learning-based Model for Ranking Influential Nodes in Complex Networks
Identifying influential nodes in complex networks is a critical task with a wide range of applications across different domains. However, existing approaches often face trade-offs between accuracy and computational efficiency. To address these challenges, we propose 1D-CGS, a lightweight and effective hybrid model that integrates the speed of one-dimensional convolutional neural networks (1D-CNN) with the topological representation power of GraphSAGE for efficient node ranking. The model uses a…

The Born-Oppenheimer approximation for a 1D 2 1 particle system with zero-range interactions
Claudio Cacciapuoti, Andrea Posilicano, Hamidreza Saberbaghi
https://arxiv.org/abs/2506.21457

The Born-Oppenheimer approximation for a 1D 2+1 particle system with zero-range interactions
We study the self-adjoint Hamiltonian that models the quantum dynamics of a 1D three-body system consisting of a light particle interacting with two heavy ones through a zero-range force. For an attractive interaction we determine the behavior of the eigenvalues below the essential spectrum in the regime $\varepsilon\ll 1$, where $\varepsilon$ is proportional to the square root of the mass ratio. We show that the $n$-th eigenvalue behaves as $$E_{n}(\varepsilon)=-α^{2}+|σ_{n}|\,α^{…

Tunable bound states in the continuum through hybridization of 1D and 2D metasurfaces
Fedor Kovalev, Mariusz Martyniuk, Andrey Miroshnichenko, Ilya Shadrivov
https://arxiv.org/abs/2506.21147

Tunable bound states in the continuum through hybridization of 1D and 2D metasurfaces
This work presents a novel approach to create and dynamically control quasi-Bound States in the Continuum (BIC) resonances through the hybridization of 1D and 2D metasurfaces using micro-electromechanical systems (MEMS). By introducing out-of-plane symmetry breaking through a silicon MEMS membrane positioned above a 1D silicon metasurface, the quasi-BIC resonance's central wavelength and quality factor are precisely tuned. The proposed design achieves ultranarrow resonance linewidths with the s…

No-go theorem for single time-reversal invariant symmetry-protected Dirac fermions in 3 1d
Lei Gioia, Anton A. Burkov, Taylor L. Hughes
https://arxiv.org/abs/2508.19329 https://…

No-go theorem for single time-reversal invariant symmetry-protected Dirac fermions in 3+1d
We employ a general method, known as anomaly-matching, to derive new no-go theorems of fermionic lattice models. For our main result, we show that time-reversal invariant 3+1d lattice systems (such as Dirac and Weyl semimetals) can never admit a lone low-energy symmetry-protected Dirac fermion (or node), i.e., it must always come in higher muliplets or be fine-tuned. This theorem holds for both non-interacting and interacting systems as long as the electromagnetic $U(1)_{V,{\rm UV}}$ symmetry i…

Strong enhancements to superconducting properties of 1D systems from metallic reservoirs
J. E. Ebot, Sam Mardazad, Lorenzo Pizzino, Johannes S. Hofmann, Thierry Giamarchi, Adrian Kantian
https://arxiv.org/abs/2507.18707

Strong enhancements to superconducting properties of 1D systems from metallic reservoirs
Using a 1D bilayer system comprised of pairing and metallic layers, the present work proves the striking power of reservoir-mediated boosting of superconductivity. Employing many-body numerics on large systems at zero and finite temperature, we unravel the complex processes by which the tuning of the metal parameters can impact the effective pairing strength as well as the long-range pair-pair-coupling mediated by the metal. It is these two processes that in turn can strongly enhance supercondu…

Signatures of rigidity and second sound in dipolar supersolids
G. A. Bougas, T. Bland, H. R. Sadeghpour, S. I. Mistakidis
https://arxiv.org/abs/2506.22290 …

Signatures of rigidity and second sound in dipolar supersolids
We propose a dynamical protocol to probe the rigidity and phase coherence of dipolar supersolids by merging initially separated fragments in quasi-one-dimensional (1D) double-well potentials. Simulations based on the extended Gross-Pitaevskii equation reveal distinct dynamical signatures across phases. Supersolids exhibit damped crystal oscillations following barrier removal, with the damping rate reflecting superfluid connectivity. A phase-imprinted jump additionally triggers metastable dark s…

Excitation and tunneling spectra of a fractional quantum Hall system in the thin cylinder limit
Jyesta M. Adhidewata, Joel E. Moore
https://arxiv.org/abs/2507.21375 https://

Excitation and tunneling spectra of a fractional quantum Hall system in the thin cylinder limit
The excitations of fractional quantum Hall effect (FQHE) states have been largely inaccessible to experimental probes until recently. New electron scanning tunneling microscopy (STM) results from Hu et.al. (2023) show promise in detecting and identifying these excited states via the local density of states (LDOS) spectrum. On a torus, there exists a mapping to a 1D lattice Hamiltonian with center-of-mass or dipole moment conservation. In this work, we apply perturbation theory starting from the…

Sigma models from Gaudin spin chains
Dmitri Bykov, Andrew Kuzovchikov
https://arxiv.org/abs/2508.20889 https://arxiv.org/pdf/2508.20889

Sigma models from Gaudin spin chains
We solve the classical and quantum problems for the 1D sigma model with target space the flag manifold $\mathrm{U}(3)\over \mathrm{U}(1)^3$, equipped with the most general invariant metric. In particular, we explicitly describe all geodesics in terms of elliptic functions and demonstrate that the spectrum of the Laplace-Beltrami operator may be found by solving polynomial (Bethe) equations. The main technical tool that we use is a mapping between the sigma model and a Gaudin model, which is als…

👀 This 1D camera captures 2D images of things it can’t see
#camera

This 1D camera captures 2D images of things it can’t see | Arduino Blog
Yes, the title of this article sounds pretty crazy. But not only is it entirely possible through the lens of physics, but it is also practical to achieve in the real world using affordable parts. Jon Bumstead pulled it off with an Arduino, a photoresistor, and an inexpensive portable projector. Today’s digital camera sensors are […]

A hierarchy of blood vessel models, Part I: 3D-1D to 1D
Laurel Ohm, Sarah Strikwerda
https://arxiv.org/abs/2507.13316 https://arxiv.o…

A hierarchy of blood vessel models, Part I: 3D-1D to 1D
We propose and analyze a family of models describing blood perfusion through a tissue surrounding a thin blood vessel. Our goal is to rigorously establish convergence results among 3D-3D Darcy--Stokes, 3D-1D Darcy--Poiseuille, and 1D Green's function methods commonly used to model this process. In Part I, we propose a 3D-1D Darcy--Poiseuille system where the coupling across the permeable vessel surface involves an angle-averaged Neumann boundary condition coupled with a geometrically constraine…

One-dimensional modeling of blood flow: A comprehensive yet concise review
Daehyun Kim, Jeffrey Tithof
https://arxiv.org/abs/2508.18484 https://arxiv.org/p…

One-dimensional modeling of blood flow: A comprehensive yet concise review
One-dimensional (1D) blood flow simulations are extensively used in cardiovascular research due to their computational efficiency and effectiveness in analyzing pulse wave dynamics. Despite their versatility and simplicity, there is a lack of a unified, step-by-step guide integrating theoretical derivations with practical implementation details. In this work, we summarize key components for comprehensive 1D blood flow simulations, including the derivation of reduced-order governing equations, t…

Been working on n-dimensional sampling/filtering functions for https://thi.ng/tensors and created an interactive Desmos graph to illustrate 1D Lanczos filtering/interpolation:
http…

1D/2D/3D/4D tensors with extensible polymorphic operations and customizable storage

Highly anisotropic 1D materials supported in exfoliable 2D coordination polymers with optical anisotropy switching via twist-engineering
Eleni C. Mazarakioti, Carla Boix-Constant, Iv\'an G\'omez-Mu\~noz, Diego L\'opez-Alcal\'a, Sergio Revuelta, Marco Ballabio, Vasileios Balos, Jos\'e J. Baldov\'i, Enrique C\'anovas, Josep Canet-Ferrer, Guillermo M\'inguez Espallargas, Samuel Ma\~nas-Valero, Eugenio Coronado

Highly anisotropic 1D materials supported in exfoliable 2D coordination polymers with optical anisotropy switching via twist-engineering
Van der Waals (vdW) materials provide a platform to study and control the physical properties of low-dimensional materials. While strategies developed for two-dimensional (2D) crystals are not directly transferable to one-dimensional (1D) systems, we can benefit from them by creating layers formed by interconnected chains. Here, we develop a molecular strategy to illustrate this concept consisting of assembling 1D materials in 2D metal-organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X =…

Automated simulation-based design via multi-fidelity active learning and optimisation for laser direct drive implosions
A. J. Crilly, P. W. Moloney, D. Shi, E. A. Ferdinandi
https://arxiv.org/abs/2508.20878

Automated simulation-based design via multi-fidelity active learning and optimisation for laser direct drive implosions
The design of inertial fusion experiments is a complex task as driver energy must be delivered in a precise manner to a structured target to achieve a fast, but hydrodynamically stable, implosion. Radiation-hydrodynamics simulation codes are an essential tool in this design process. However, multi-dimensional simulations that capture hydrodynamic instabilities are more computationally expensive than optimistic, 1D, spherically symmetric simulations which are often the primary design tool. In th…

Spin Seebeck Effect of Triangular-lattice Spin Supersolid
Yuan Gao, Yixuan Huang, Sadamichi Maekawa, Wei Li
https://arxiv.org/abs/2506.22414 https://

Spin Seebeck Effect of Triangular-lattice Spin Supersolid
Using our developed thermal tensor-network approach, we investigate the spin Seebeck effect (SSE) of the triangular-lattice quantum antiferromagnet hosting spin supersolid phase. We focus on the low-temperature scaling of normalized spin current $\tilde{I}_S$ through the interface, and benchmark our approach on 1D Heisenberg chain, with the negative spinon spin current reproduced. In addition, we find an algebraic scaling $\tilde{I}_S \sim T^α$ with varying exponent $α$ in the Tomonaga-Luttin…

Replaced article(s) found for physics.atom-ph. https://arxiv.org/list/physics.atom-ph/new
[1/1]:
- A Continuous Dual-Axis Atomic Interferometric Inertial Sensor
Pei-Qiang Yan, Wei-Chen Jia, Ke Shen, Yue Xin, Yan-Ying Feng
https://arxiv.org/abs/2311.16557 https://mastoxiv.page/@arXiv_physicsatomph_bot/111492133329845822
- Detection of twisted radiowaves with Rydberg atoms
P. O. Kazinski, P. S. Korolev, V. A. Ryakin
https://arxiv.org/abs/2506.16368 https://mastoxiv.page/@arXiv_physicsatomph_bot/114731965479162891
- Permutationally-Invariant N-body gates via Tavis-Cummings Hamiltonian
Plato Deliyannis, Iman Marvian
https://arxiv.org/abs/2506.03453 https://mastoxiv.page/@arXiv_quantph_bot/114629606806000870
- Spin Faraday pattern formation in a circular spin-orbit coupled Bose-Einstein condensate with str...
Shixiang Chen, Hongguang Liang, Juan Wang, Yan Li
https://arxiv.org/abs/2507.15263 https://mastoxiv.page/@arXiv_condmatquantgas_bot/114896125347288550
- Three-qubit encoding in ytterbium-171 atoms for simulating 1 1D QCD
William Huie, Cianan Conefrey-Shinozaki, Zhubing Jia, Patrick Draper, Jacob P. Covey
https://arxiv.org/abs/2507.18426 https://mastoxiv.page/@arXiv_quantph_bot/114913299141202571
toXiv_bot_toot

JWST Observations of SN 2024ggi I: Interpretation and Model Comparison of the Type II Supernova 2024ggi at 55 days Past Explosion
E. Baron, C. Ashall, J. M. DerKacy, P. Hoeflich, K. Medler, M. Shahbandeh, E. Fereidouni, C. M. Pfeffer, T. Mera, W. B. Hoogendam, S. Shiber, K. Auchettl, P. J. Brown, C. R. Burns, A. Burrow, D. . A. Coulter, M. Engesser, G. Folatelli, O. Fox, L. Galbany, M. Guolo, J. T. Hinkle, Mark E. Huber, E. Y. Hsiao, T. de Jaeger, D. O. Jones, S. Kumar, J. Lu, P. A. Ma…

JWST Observations of SN 2024ggi I: Interpretation and Model Comparison of the Type II Supernova 2024ggi at 55 days Past Explosion
We present panchromatic 0.4-21 microns observations of the nearby (~7.2 Mpc) Type II supernova 2024ggi, obtained during the plateau phase at ~55 d past explosion. Our dataset includes JWST spectra spanning 1.7-14 microns, MIR imaging at 7.7 and 21 microns, and near-simultaneous ground-based optical and NIR spectra covering 0.32-1.8 microns. The NIR and MIR spectral features of SN 2024ggi are dominated by HI emission. We present line IDs and a toy PHOENIX/1D model that reproduces the observation…

Localized and delocalized modes on random geometric graphs in 1D
Luca Schaefer, Barbara Drossel
https://arxiv.org/abs/2508.18936 https://arxiv.org/pdf/2508…

Localized and delocalized modes on random geometric graphs in 1D
We perform an extensive investigation of the localization properties of the eigenmodes of the Laplace and adjacency matrix for one-dimensional random geometric graphs. We evaluate the density of states, the probability distribution of the participation ratio and its relation to the eigenvalue. By disentangling the influence of system size, graph component size distribution, mean degree of nodes, network motifs, and degeneracy, we provide a comprehensive understanding of this system. We compare …

Correlated decoherence and thermometry with mobile impurities in a 1D Fermi gas
Sindre Brattegard, Thom\'as Fogarty, Thomas Busch, Mark T. Mitchison
https://arxiv.org/abs/2508.20050

Correlated decoherence and thermometry with mobile impurities in a 1D Fermi gas
We theoretically investigate the correlated decoherence dynamics of two mobile impurities trapped within a gas of ultracold fermionic atoms. We use a mean-field approximation to self-consistently describe the effect of impurity-gas collisions on impurity motion, while decoherence of the impurities' internal state is computed exactly within a functional determinant approach. At equilibrium, we find that the impurities undergo bath-induced localisation as the impurity-gas interaction strength is …

Structure-preserving scheme for 1D KWC system
Makoto Okumura, Shodai Kubota, Ken Shirakawa
https://arxiv.org/abs/2506.16963 https://a…

Structure-preserving scheme for 1D KWC system
In this paper, we consider a system of one-dimensional parabolic PDEs, known as the KWC system, as a phase-field model for grain boundary motion. A key feature of this system is that the equation for the crystalline orientation angle is described as a quasilinear diffusion equation with variable mobility. The goal of this paper is to establish a structure-preserving numerical scheme for the system, focusing on two main structural properties: $\sharp\,1)$ range preservation; and $\sharp\,2)$ ene…

Assessing robustness and bias in 1D retrievals of 3D Global Circulation Models at high spectral resolution: a WASP-76 b simulation case study in emission
Lennart van Sluijs, Hayley Beltz, Isaac Malsky, Genevieve H. Pereira, L. Cinque, Emily Rauscher, Jayne Birkby
https://arxiv.org/abs/2507.16687

Assessing robustness and bias in 1D retrievals of 3D Global Circulation Models at high spectral resolution: a WASP-76 b simulation case study in emission
High-resolution spectroscopy (HRS) of exoplanet atmospheres has successfully detected many chemical species and is quickly moving toward detailed characterization of the chemical abundances and dynamics. HRS is highly sensitive to the line shape and position, thus, it can detect three-dimensional (3D) effects such as winds, rotation, and spatial variation of atmospheric conditions. At the same time, retrieval frameworks are increasingly deployed to constrain chemical abundances, pressure-temper…

1D Vlasov Simulations of QED Cascades Over Pulsar Polar Caps
Dingyi Ye, Alexander Y. Chen
https://arxiv.org/abs/2507.15804 https://ar…

1D Vlasov Simulations of QED Cascades Over Pulsar Polar Caps
Recent developments in the study of pulsar radio emission revealed that the microphysics of quantum electrodynamic (QED) pair cascades at pulsar polar caps may be responsible for generating the observed coherent radio waves. However, modeling the pair cascades in the polar cap region poses significant challenges, particularly under conditions of high plasma multiplicity. Traditional Particle-in-Cell (PIC) methods often face rapidly increasing computational costs as the multiplicity grows expone…

Robust Anomaly Detection in Network Traffic: Evaluating Machine Learning Models on CICIDS2017
Zhaoyang Xu, Yunbo Liu
https://arxiv.org/abs/2506.19877 https…

Robust Anomaly Detection in Network Traffic: Evaluating Machine Learning Models on CICIDS2017
Identifying suitable machine learning paradigms for intrusion detection remains critical for building effective and generalizable security solutions. In this study, we present a controlled comparison of four representative models - Multi-Layer Perceptron (MLP), 1D Convolutional Neural Network (CNN), One-Class Support Vector Machine (OCSVM) and Local Outlier Factor (LOF) - on the CICIDS2017 dataset under two scenarios: detecting known attack types and generalizing to previously unseen threats. O…

Three-qubit encoding in ytterbium-171 atoms for simulating 1 1D QCD
William Huie, Cianan Conefrey-Shinozaki, Zhubing Jia, Patrick Draper, Jacob P. Covey
https://arxiv.org/abs/2507.18426

Three-qubit encoding in ytterbium-171 atoms for simulating 1+1D QCD
Simulating nuclear matter described by quantum chromodynamics using quantum computers is notoriously inefficient because of the assortment of quark degrees of freedom such as matter/antimatter, flavor, color, and spin. Here, we propose to address this resource efficiency challenge by encoding three qubits within individual ytterbium-171 atoms of a neutral atom quantum processor. The three qubits are encoded in three distinct sectors: an electronic "clock" transition, the spin-1/2 nucleus, and t…

I’m unreasonably fucking pissed.
An r/me_irlgbt moderator banned me, and is now accusing me of being an A.I. … … … because I use fucking emdashes and ellipses.
#typography #AI #nightmaretimeline

Configurational Entropy and Its Scaling Behavior in Lattice Systems with Number of States Defined by Coordination Numbers
Youshen Wu, Xin Guan, Shengli Zhang, Lei Zhang
https://arxiv.org/abs/2507.20660

Configurational Entropy and Its Scaling Behavior in Lattice Systems with Number of States Defined by Coordination Numbers
We introduce an exactly solvable lattice model that reveals a universal finite-size scaling law for configurational entropy driven purely by geometry. Using exact enumeration via Burnside's lemma, we compute the entropy for diverse 1D, 2D, and 3D lattices, finding that the deviation from the thermodynamic limit $s_{\infty} = \ln (z)$ scales as $Δs_{N} \sim N^{-1/d}$, with lattice-dependent higher-order corrections. This scaling, observed across structures from chains to FCC and diamond lattice…

A hierarchy of blood vessel models, Part II: 3D-3D to 3D-1D and 1D
Laurel Ohm, Sarah Strikwerda
https://arxiv.org/abs/2507.13330 https://

A hierarchy of blood vessel models, Part II: 3D-3D to 3D-1D and 1D
We propose and analyze a hierarchy of three models of blood perfusion through a tissue surrounding a thin arteriole or venule. Our goal is to rigorously link 3D-3D Darcy--Stokes, 3D-1D Darcy--Poiseuille, and 1D Green's function methods commonly used to model this process. Here in Part II, we consider the most detailed level, a 3D-3D Darcy-Stokes system coupled across the permeable vessel surface by mass conservation and pressure/stress balance conditions. We derive a convergence result between …

@… @… Yes!
And of course, `array[y][x]` indexes into a 2D array, `array[x]` indexes into a 1D array, and `array` indexes into a 0D array.

Bayesian Surface Wave Inversion for 3D Shear Wave Velocity Structure Beneath the British Isles: comparing Direct-3D Variational Inversion to Two-step (2D 1D) Inversion Methods
Xuebin Zhao, Lily Irvin, Erica Galetti, Andrew Curtis
https://arxiv.org/abs/2507.15390

Bayesian Surface Wave Inversion for 3D Shear Wave Velocity Structure Beneath the British Isles: comparing Direct-3D Variational Inversion to Two-step (2D+1D) Inversion Methods
We test the extent to which surface wave inversion results for three-dimensional shear wave velocity structure depend on the tomography scheme employed, by comparing two standard two-step 2D+1D inversion methods which use variational inversion, Metropolis-Hastings and reversible jump Monte Carlo, against a direct-3D inversion method. While it is possible to calculate a Monte Carlo based solution for the 2-step methods since they neglect lateral spatial correlations, a direct-3D Monte Carlo inve…

Large deviations at the edge for 1D gases and tridiagonal random matrices at high temperature
Charlie Dworaczek Guera, Ronan Memin
https://arxiv.org/abs/2507.14008

Large deviations at the edge for 1D gases and tridiagonal random matrices at high temperature
We consider a model for a gas of $N$ confined particles subject to a two-body repulsive interaction, namely the one-dimensional log or Riesz gas. We are interested in the so-called \textit{high temperature} regime, \textit{ie} where the inverse temperature $β_N$ scales as $Nβ_N\rightarrow2P>0$. We establish, in the log case, a large deviation (LD) principle and moderate deviations estimates for the largest particle $x_\mathrm{max}$ when appropriately rescaled . Our result is an extension of […

Forecasting Probability Distributions of Financial Returns with Deep Neural Networks
Jakub Micha\'nk\'ow
https://arxiv.org/abs/2508.18921 https://a…

Forecasting Probability Distributions of Financial Returns with Deep Neural Networks
This study evaluates deep neural networks for forecasting probability distributions of financial returns. 1D convolutional neural networks (CNN) and Long Short-Term Memory (LSTM) architectures are used to forecast parameters of three probability distributions: Normal, Student's t, and skewed Student's t. Using custom negative log-likelihood loss functions, distribution parameters are optimized directly. The models are tested on six major equity indices (S\&P 500, BOVESPA, DAX, WIG, Nikkei 225, …

Ik heb Dagen in de Geschiedenis van Stilte uit. Niet echt een boek voor mij. Hier is waarom; #review

W ogóle taki był klimacik - "restauracja" to był jeden z takich domków nad portem.

Unraveling Self-Similar Energy Transfer Dynamics: a Case Study for 1D Burgers System
Pritpal Matharu, Bartosz Protas, Tsuyoshi Yoneda
https://arxiv.org/abs/2507.12764

Unraveling Self-Similar Energy Transfer Dynamics: a Case Study for 1D Burgers System
In this work we consider the problem of constructing flow evolutions leading to a self-similar energy cascade consistent with Kolmogorov's statistical theory of turbulence. As a first step in this direction, we focus on the one-dimensional viscous Burgers equation as a toy model. Its solutions exhibiting self-similar behavior, in a precisely-defined sense, are found by framing this problems in terms of PDE-constrained optimization. The main physical parameters are the time window over which sel…

UST-SSM: Unified Spatio-Temporal State Space Models for Point Cloud Video Modeling
Peiming Li, Ziyi Wang, Yulin Yuan, Hong Liu, Xiangming Meng, Junsong Yuan, Mengyuan Liu
https://arxiv.org/abs/2508.14604

UST-SSM: Unified Spatio-Temporal State Space Models for Point Cloud Video Modeling
Point cloud videos capture dynamic 3D motion while reducing the effects of lighting and viewpoint variations, making them highly effective for recognizing subtle and continuous human actions. Although Selective State Space Models (SSMs) have shown good performance in sequence modeling with linear complexity, the spatio-temporal disorder of point cloud videos hinders their unidirectional modeling when directly unfolding the point cloud video into a 1D sequence through temporally sequential scann…

Quasi-1D Coulomb drag between spin-polarized quantum wires
Mingyang Zheng, Rebika Makaju, Rasul Gazizulin, Alex Levchenko, Sadhvikas J. Addamane, Dominique Laroche
https://arxiv.org/abs/2506.14967

Quasi-1D Coulomb drag between spin-polarized quantum wires
One-dimensional (1D) quantum wires provide a versatile platform for studying strong electron-electron interactions and collective excitations under confinement. Coulomb drag between 1D systems offers a powerful probe of Tomonaga-Luttinger liquid (TLL) physics, with theoretical predictions suggesting distinct power-law in temperature dependencies between the spin-full and the spin-polarized regimes. However, experimental verification has thus far remained limited. Here, we report measurements of…

LSM and CPT
Nathan Seiberg, Shu-Heng Shao, Wucheng Zhang
https://arxiv.org/abs/2508.17115 https://arxiv.org/pdf/2508.17115…

LSM and CPT
We study a number of 1+1d lattice models with anti-unitary symmetries that simultaneously reflect space and reverse time. Some of these symmetries are anomalous, leading to Lieb-Schultz-Mattis-type constraints, thus excluding a trivially gapped phase. Examples include a mod 8 anomaly in the Majorana chain and various mod 2 anomalies in the spin chain. In some cases, there is an exact, non-anomalous lattice symmetry that flows in the continuum to CPT. In some other cases, the CPT symmetry of the…

Shock formation in 1D conservation laws I: Inviscid structure
John Anderson, Sanchit Chaturvedi, Cole Graham
https://arxiv.org/abs/2506.17148 https://

Shock formation in 1D conservation laws I: Inviscid structure
We study the stability and structure of shock formation in 1D hyperbolic conservation laws. We show that shock formation is stable near shocking simple waves: perturbations form a shock nearby in spacetime. We also characterize the boundary of the classical development in a spacetime neighborhood of the first time singularity. Finally, we describe the precise nature of nondegenerate shock formation through an expansion in homogeneous functions of fractional degree. We use these results in a com…

Flatten Wisely: How Patch Order Shapes Mamba-Powered Vision for MRI Segmentation
Osama Hardan, Omar Elshenhabi, Tamer Khattab, Mohamed Mabrok
https://arxiv.org/abs/2507.13384

Flatten Wisely: How Patch Order Shapes Mamba-Powered Vision for MRI Segmentation
Vision Mamba models promise transformer-level performance at linear computational cost, but their reliance on serializing 2D images into 1D sequences introduces a critical, yet overlooked, design choice: the patch scan order. In medical imaging, where modalities like brain MRI contain strong anatomical priors, this choice is non-trivial. This paper presents the first systematic study of how scan order impacts MRI segmentation. We introduce Multi-Scan 2D (MS2D), a parameter-free module for Mamba…

Meson spectroscopy of exotic symmetries of Ising criticality in Rydberg atom arrays
Joseph Vovrosh, Julius de Hond, Sergi Juli\`a-Farr\'e, Johannes Knolle, Alexandre Dauphin
https://arxiv.org/abs/2506.21299

Meson spectroscopy of exotic symmetries of Ising criticality in Rydberg atom arrays
The Ising model serves as a canonical platform for exploring emergent symmetry in quantum critical systems. The critical point of the 1D Ising chain is described by a conformal Ising field theory, which remains integrable in the presence of a magnetic perturbation leading to massive particles associated with the exceptional Lie algebra $E_8$. Coupling two Ising chains in a ladder leads to an even richer $\mathcal{D}^{(1)}_8$ symmetry. Experimental signatures of the associated particle excitatio…

Experimental observation of multimode quantum phase transitions in a superconducting Bose-Hubbard simulator
Claudia Castillo-Moreno, Th\'eo S\'epulcre, Timo Hillmann, Kazi Rafsanjani Amin, Mikael Kervinen, Simone Gasparinetti
https://arxiv.org/abs/2508.20116

Experimental observation of multimode quantum phase transitions in a superconducting Bose-Hubbard simulator
The study of phase transitions and critical phenomena arising in quantum driven-dissipative systems, and whether a correspondence can be drawn to their equilibrium counterparts, is a pressing question in contemporary physics. The development of large-scale superconducting circuits provides an experimental platform for these theoretical models. We report an experimental study of a multi-mode dissipative first-order phase transition in a 1D Bose-Hubbard chain consisting of 21 superconducting reso…

Coupling 1D stellar evolution with 3D-hydrodynamical simulations on-the-fly III: stellar evolution at different metallicities
Yixiao Zhou, Jakob L. R{\o}rsted, Achim Weiss, Andreas C. S. J{\o}rgensen, Cis Lagae, Luisa F. Rodr\'iguez D\'iaz, Yaguang Li, Mark L. Winther, Jens R. Larsen, J{\o}rgen Christensen-Dalsgaard, Oleg Kochukhov, Karen R. Pollard, Tanda Li

Coupling 1D stellar evolution with 3D-hydrodynamical simulations on-the-fly III: stellar evolution at different metallicities
A major weakness in one-dimensional (1D) stellar structure and evolution modeling is the simplified treatment of convection, which leads to erroneous near-surface stratification and considerable uncertainties in predicted effective temperatures and luminosities of low-mass stars. In a series of preceding works, a novel method for coupling 1D stellar structural models with a grid of 3D surface convection simulations during stellar evolution was developed, at solar metallicity. This 1D-3D couplin…

A 3D thermophysical model for binary asteroid systems: Application to the BYORP effect on (175706) 1996 FG3
Kya C. Sorli, Paul O. Hayne, Rachel H. Cueva, Chloe J. Long, Jay W. McMahon, Daniel J. Scheeres
https://arxiv.org/abs/2508.18568

A 3D thermophysical model for binary asteroid systems: Application to the BYORP effect on (175706) 1996 FG3
Differential heating and radiation on asymmetric asteroids can cause measurable changes in their rotation rates and spin axes, known as the YORP effect. In binary systems, such radiation-driven torques can change the mutual asteroid orbits, termed the binary YORP or BYORP effect. To study how binary asteroid shapes and thermophysical properties affect surface temperatures and BYORP, we developed a new 3D thermophysical model which balances insolation, 1D conduction, visible light reflection, an…

Shell model description of the $N=82$ isotonic chain with a new effective interaction
Y. X. Yu, Q. Y. Chen, Chong Qi, G. J. Fu
https://arxiv.org/abs/2507.14506

Shell model description of the $N=82$ isotonic chain with a new effective interaction
In this work, we present a systematic study of low-lying states and electromagnetic properties of the semi-magic $N = 82$ isotonic chain with proton number $Z=51$-77, using the full configuration interaction shell model with a newly developed high-quality effective interaction. The calculations are performed in a large model space that includes all proton orbitals between $Z = 50$ and 82: $0g_{7/2}$, $1d_{5/2}$, $1d_{3/2}$, $2s_{1/2}$, and $0h_{11/2}$. The effective interaction is derived throu…

Conditional a priori error estimates of finite volume and Runge-Kutta discontinuous Galerkin methods with abstract limiting for hyperbolic systems of conservation laws in 1D
Fabio Leotta
https://arxiv.org/abs/2506.13221

Conditional a priori error estimates of finite volume and Runge-Kutta discontinuous Galerkin methods with abstract limiting for hyperbolic systems of conservation laws in 1D
We derive conditional a priori error estimates of a wide class of finite volume and Runge-Kutta discontinuous Galerkin methods with abstract limiting for hyperbolic systems of conservation laws in 1D via the verification of weak consistency and entropy stability, as recently proposed by Bressan et al.~\cite{BressanChiriShen21}. Convergence in $L^\infty L^1$ with rate $h^{1/3}$ is obtained under a time step restriction $τ\leq ch$, provided the following conditions hold: the exact solution is pi…

Importance of Non-Adiabatic Effects on Kohn Anomalies in 1D metals
Enrico Marazzi (IMCN Universit\'e catholique de Louvain Belgium), Samuel Ponc\'e (ETSF Universit\'e catholique de Louvain Belgium, WEL Research Institute Belgium), Jean-Christophe Charlier (IMCN Universit\'e catholique de Louvain Belgium), Gian-Marco Rignanese (ETSF Universit\'e catholique de Louvain Belgium, WEL Research Institute Belgium, School of Materials Science and Engineering Northwestern Pol…

Importance of Non-Adiabatic Effects on Kohn Anomalies in 1D metals
Kohn anomalies are kinks or dips in phonon dispersions which are pronounced in low-dimensional materials. We investigate the effects of non-adiabatic phonon self-energy on Kohn anomalies in one-dimensional metals by developing a model that analyzes how the adiabatic phonon frequency, electron effective mass, and electron-phonon coupling strength influence phonon mode renormalization. We introduce an electron-phonon coupling strength threshold for low-temperature system instability, providing ex…

Finite 2-group gauge theory and its 3 1D lattice realization
Mo Huang
https://arxiv.org/abs/2508.04693 https://arxiv.org/pdf/2508.04693

Finite 2-group gauge theory and its 3+1D lattice realization
In this work, we employ the Tannaka-Krein reconstruction to compute the quantum double $\mathcal D(\mathcal G)$ of a finite 2-group $\mathcal G$ as a Hopf monoidal category. We also construct a 3+1D lattice model from the Dijkgraaf-Witten TQFT functor for the 2-group $\mathcal G$, generalizing Kitaev's 2+1D quantum double model. Notably, the string-like local operators in this lattice model are shown to form $\mathcal D(\mathcal G)$. Specializing to $\mathcal G = \mathbb{Z}_2$, we demonstrate t…

A new 1D $V_p$ and $V_s$ velocity model of the western Rift of Corinth, Greece, using a fully non-linear tomography algorithm
Mark S. Noble (GEOSCIENCES), Alexandrine Gesret (GEOAZUR 7329), H\'el\`ene Lyon-Caen (GEOAZUR 7329), Anne Deschamps (GEOAZUR 7329)
https://arxiv.org/abs/2506.16222

A new 1D $V_p$ and $V_s$ velocity model of the western Rift of Corinth, Greece, using a fully non-linear tomography algorithm
The objective of this study is to propose a new updated accurate 1-D $V_p$ and $V_s$ velocity model of the western Rift of Corinth for precise absolute earthquake locations. The methodology used to obtain this new model associates two fully non-linear algorithms, a complete exploration of the $V_p$ and $V_s$ model space combined with a grid search method for earthquake locations to minimize the P and S arrival time residuals. We calculated the misfit function for approximately 2.10 6 velocity m…

Shock formation in 1D conservation laws II: Vanishing viscosity
John Anderson, Sanchit Chaturvedi, Cole Graham
https://arxiv.org/abs/2506.17156 https://

Shock formation in 1D conservation laws II: Vanishing viscosity
We study the effects of weak viscosity on shock formation in 1D hyperbolic conservation laws. Given an inviscid solution that forms a nondegenerate shock, we add a small viscous regularization and study the limit as the viscosity vanishes. Using a matched asymptotic expansion, we determine the sharp rate of convergence in strong norms up to the time of inviscid shock formation, and we identify universal viscous behavior near the first singularity. To treat the complex interactions between multi…

Defect Anomalies, a Spin-Flux Duality, and Boson-Kondo Problems
Zohar Komargodski, Fedor K. Popov, Brandon C. Rayhaun
https://arxiv.org/abs/2508.14963 https://

Defect Anomalies, a Spin-Flux Duality, and Boson-Kondo Problems
We show that the infrared phases of certain line defects in 2+1d quantum field theories are determined by anomalies, including anomalies in the space of defect coupling constants, together with a symmetry-refined corollary of the $g$-theorem. As an example, we prove that the spin-$1/2$ impurities in the 2+1d critical $O(2)$ and $O(3)$ models (known respectively as the Halon and Boson-Kondo defects) flow to non-trivial conformal line operators in the IR, and we supply evidence that the same exte…

Extensive entanglement between coupled Tomonaga-Luttinger liquids in and out of equilibrium
Taufiq Murtadho, Marek Gluza, Nelly H. Y. Ng
https://arxiv.org/abs/2508.20533 https:/…

Extensive entanglement between coupled Tomonaga-Luttinger liquids in and out of equilibrium
Quantum entanglement exists in nature but is absent in classical physics, hence it fundamentally distinguishes quantum from classical theories. While entanglement is routinely observed for few-body systems, it is significantly more challenging to witness in quantum many-body systems. Here, we theoretically study entanglement between two parallel and spatially separated Tomonaga-Luttinger liquids (TLLs) partitioned along the longitudinal axis. In particular, we focus on 1D Bose gases as a realiz…

Crosslisted article(s) found for cond-mat.mes-hall. https://arxiv.org/list/cond-mat.mes-hall/new
[1/1]:
- No-go theorem for single time-reversal invariant symmetry-protected Dirac fermions in 3 1d
Lei Gioia, Anton A. Burkov, Taylor L. Hughes

Effect of Signal Quantization on Performance Measures of a 1st Order One Dimensional Differential Microphone Array
Shweta Pal, Arun Kumar, Monika Agrawal
https://arxiv.org/abs/2506.15463

Effect of Signal Quantization on Performance Measures of a 1st Order One Dimensional Differential Microphone Array
In practical systems, recorded analog signals must be digitized for processing, introducing quantization as a critical aspect of data acquisition. While prior studies have examined quantization effects in various signal processing contexts, its impact on differential microphone arrays (DMAs), particularly in one-dimensional (1D) first-order configurations, remains unexplored. This paper investigates the influence of signal quantization on performance of first-order 1D DMAs across various beampa…

Three-dimensional equation of state extension of quark matter in Fermi-liquid theory
Zhenyu Zhu, Shuai Zha, Sophia Han
https://arxiv.org/abs/2506.17569 htt…

Three-dimensional equation of state extension of quark matter in Fermi-liquid theory
The cold, dense matter equation of state (EoS) determines crucial global properties of neutron stars (NSs), including the mass, radius and tidal deformability. However, a one-dimensional (1D), cold, and $β$-equilibrated EoS is insufficient to fully describe the interactions or capture the dynamical processes of dense matter as realized in binary neutron star (BNS) mergers or core-collapse supernovae (CCSNe), where thermal and out-of-equilibrium effects play important roles. We develop a method…

Spin-1/2 operators exactly mapped to spinful canonical Fermi operators present in two bands
Zsolt Gulacsi
https://arxiv.org/abs/2506.17734 https://

Spin-1/2 operators exactly mapped to spinful canonical Fermi operators present in two bands
Recently it has been shown that the quantum spin-1/2 spin operators can be exactly transformed not only in spinless, but also in spinful canonical Fermi operators in 1D [\cite{JW1}], and 2D [\cite{JW2}] as well. In this paper, using the same technique based on an extended Jordan-Wigner transformation, we show in 1D, that the quantum spin-1/2 operators can be exactly transformed also in spinful canonical Fermi operators of spin-1/2 fermions that are belong to two bands.

Quantum-Assisted Learning of Time-Dependent Parabolic PDEs
Nahid Binandeh Dehaghani, Ban Tran, A. Pedro Aguiar, Rafal Wisniewski, Susan Mengel
https://arxiv.org/abs/2508.17553 h…

Quantum-Assisted Learning of Time-Dependent Parabolic PDEs
We present a hybrid quantum-classical framework for solving general time-dependent parabolic partial differential equations (PDEs) using quantum variational circuits. Building on the QPINN approach, this method applies broadly to parabolic PDEs. To demonstrate its effectiveness, we focus on the 1D and 2D heat equations as representative examples and analyze its performance under constrained quantum resources. Our results show that the framework can accurately capture spatiotemporal dynamics, of…

Reliability of 1D radiative-convective photochemical-equilibrium retrievals on transit spectra of WASP-107b
Thomas Konings, Linus Heinke, Robin Baeyens, Kaustubh Hakim, Valentin Christiaens, Leen Decin
https://arxiv.org/abs/2508.00177

Reliability of 1D radiative-convective photochemical-equilibrium retrievals on transit spectra of WASP-107b
Observations of WASP-107b suggest a metal-rich and carbon-deprived atmosphere with an extremely hot interior based on detections of SO$_2$, H$_2$O, CO$_2$, CO, NH$_3$, and CH$_4$. In this paper, we aim to determine the reliability of a 1D radiative-convective photochemical-equilibrium (1D-RCPE) retrieval method in inferring atmospheric properties of WASP-107b. Our grid of radiative-convective balanced pressure-temperature profiles and 1D photochemical equilibrated models covers a range of metal…

Cauchy Data for 1D singular Schr\"odinger operators
Luc Hillairet, Jeremy L. Marzuola
https://arxiv.org/abs/2507.05772 https://a…

Cauchy Data for 1D singular Schrödinger operators
We study semiclassical 1D Schrödinger operators with a power-like singularity at $0$. We show that WKB expansions can be extended on any interval of the form [h^{1-},b]. Using a different approximation near 0 and a matching procedure we obtain an asymptotic expansion for the Cauchy Data at 0 of such WKB solutions that involves non-integer powers of h.

Subharmonic Shapiro steps in depinning dynamics of a 2D solid dusty plasma modulated by 1D nonlinear deformed periodic substrates
Zhaoye Wang, Nichen Yu, Ao xu, Chen Liang, C. Reichhardt, C. J. O. Reichhardt, Yan Feng
https://arxiv.org/abs/2507.11389

Subharmonic Shapiro steps in depinning dynamics of a 2D solid dusty plasma modulated by 1D nonlinear deformed periodic substrates
Langevin dynamical simulations are performed to investigate the depinning dynamics of a two-dimensional solid dusty plasma, which is modulated by one-dimensional nonlinear deformed periodic substrates, and also driven by the combination of the DC and AC forces. As the DC driving force increases gradually, pronounced subharmonic and harmonic Shapiro steps are discovered under the combined modulation of the deformed substrate and the external AC drive. These observed subharmonic and harmonic Shap…

Impact of 3D macro physics and nuclear physics on the p nuclei in O-C shell mergers
Joshua Issa, Falk Herwig, Pavel Denissenkov, Marco Pignatari
https://arxiv.org/abs/2507.16965

Impact of 3D macro physics and nuclear physics on the p nuclei in O-C shell mergers
O-C shell mergers in massive stars are a site for producing the p nuclei by the $γ$ process, but 1D stellar models rely on mixing length theory, which does not match the radial velocity profiles of 3D hydrodynamic simulations. We investigate how 3D macro physics informed mixing impacts the nucleosynthesis of p nuclei. We post-process the O-shell of the $M_\mathrm{ZAMS} = 15~\mathrm{M}_\odot$, $Z = 0.02$ model from the NuGrid stellar data set. Applying a downturn to velocities at the boundary a…

Exponential mixing for the stochastic Kuramoto-Sivashinsky equation on the 1D torus
Peng Gao, Hung D. Nguyen
https://arxiv.org/abs/2508.01794 https://arxiv…

Exponential mixing for the stochastic Kuramoto-Sivashinsky equation on the 1D torus
In this paper, we study the large-time behaviors of the Kuramoto-Sivashinsky equation (KSE) on the 1D torus while being subjected to random perturbation via additive Gaussian noise. It is well-known that under suitable assumptions on the stochastic forcing, the KSE admits a unique invariant probability measure. In this work, we make further progress on the topic of ergodicity by addressing the issue of convergence rate toward equilibrium. In comparison with the previous results, we can prove th…

Widoki były coraz lepsze - za plecami zostawialiśmy jezioro polodowcowe, a za ostatnim punktem ostrzegawczym zniknęły już kamienie i zostały tylko ślady butów prowadzące do celu.

3/n

Robustness of Majorana modes to potential disorder in Fe chains on a superconducting Rashba alloy
Harim Jang, Daniel Crawford, Khai Ton That, Lucas Schneider, Jens Wiebe, Makoto Shimizu, Harald O. Jeschke, Stephan Rachel, Roland Wiesendanger
https://arxiv.org/abs/2506.17414

Robustness of Majorana modes to potential disorder in Fe chains on a superconducting Rashba alloy
Majorana modes offer great potential for fault-tolerant quantum computation due to their topological protection. However, for superconductor-semiconductor nanowire hybrids, intrinsic disorder makes the unambiguous detection of Majorana modes difficult. Here, we construct 1D spin chains from individual Fe atoms on the Rashba surface alloy BiAg2/Ag(111) with proximity-induced superconductivity from a Nb(110) substrate. While the Fe chains exhibit perfect crystalline order, we observe nano-scale p…

Ultracold collisions of a neutral atom with a trapped ion in 1D
Seth T. Rittenhouse, Lorenzo Oghittu, Arghavan Safavi-Naini, Rene Gerritsma, Nirav P. Mehta
https://arxiv.org/abs/2506.15804

Numerical Simulation of Lead-Free Absorbers in 2D Dion-Jacobson Phase Perovskite Solar Cells Using SCAPS-1D: Towards 41% Efficiency
Md. Meraz Hasan, Pallab Chakraborty, Fahim Tanvir, Subah Tahsin, Mostafizur Rahaman
https://arxiv.org/abs/2508.13286

Numerical Simulation of Lead-Free Absorbers in 2D Dion-Jacobson Phase Perovskite Solar Cells Using SCAPS-1D: Towards 41% Efficiency
With the rapid advancement of photovoltaic science, there has been an increasing focus on the development of environment-friendly and structurally advanced perovskite solar cells (PSCs). In this context, this study investigates an architectural configuration employing 2D Dion-Jacobson phase perovskites as both electron and hole transport layers within a 2D/absorber/2D structure. The primary objective is to identify optimal absorber materials and enhance the overall efficiency of the device. Whi…

The Quantum Foucault Modes
Samuel Alperin
https://arxiv.org/abs/2507.18420 https://arxiv.org/pdf/2507.18420

The Quantum Foucault Modes
The driven quantum harmonic oscillator is fundamental to a number of important physical systems. Here, we consider the quantum harmonic oscillator under non-Hermitian, PT-symmetric driving, showing that the resulting set of Wigner-space trajectories of an initial coherent state is identical to the set of real-space trajectories of the classical Foucault pendulum. Remarkably, in the case mapped from the trivial 1D pendulum, the corresponding quantum dynamics are those of an oscillator with perio…

Quasi-1D Electronic Metadevices with Enhanced Electrical Properties
Abdallah Abushawish, Ziwen Huang, Mohammad Samizadeh Nikoo
https://arxiv.org/abs/2508.09656 https://

Quasi-1D Electronic Metadevices with Enhanced Electrical Properties
Electronic metadevices leveraging sub-wavelength metallic features have shown great potential for high-frequency switching. Theoretical analysis based on a one-dimensional (1D) model indicates that reducing the size of subwavelength features can enhance electrical properties, such as contact resistance and switching cutoff frequency. Here, we report higher-than-expected contact resistance in electronic metadevices when the subwavelength feature size is aggressively downscaled. We attribute this…

Tunable Itinerant Ferromagnetism in the Two-Dimensional FePd$_2$Te$_2$ Hosting 1D Spin Chains
Alberto M. Ruiz, Andrei Shumilin, Sourav Dey, Diego L\'opez-Alcal\'a, Jos\'e J. Baldov\'i
https://arxiv.org/abs/2506.01009

Tunable Itinerant Ferromagnetism in the Two-Dimensional FePd$_2$Te$_2$ Hosting 1D Spin Chains
One-dimensional (1D) magnetism offers unidirectional spin interactions that allow unique tunable properties and unconventional spin phenomena. However, it often suffers from poor stability, limiting practical applications. In this regard, integrating 1D magnetism into two-dimensional (2D) materials enables a promising route to stabilize these systems while preserving their anisotropic magnetic characteristics. Here, we focus on the 2D ferromagnet FePd$_2$Te$_2$ (T$_C$ = 183K), which hosts 1D sp…

When quenched and annealed pinning transitions coincide? A directed walk near a corrugated wall in disorders of various types
Ruijie Xu, Sergei Nechaev
https://arxiv.org/abs/2507.15332

When quenched and annealed pinning transitions coincide? A directed walk near a corrugated wall in disorders of various types
We study the pinning transition in a (1+1)-dimensional model of a fluctuating interface interacting with a corrugated impenetrable wall. The interface is described by the $N$-step directed 1D random walk on a discrete half-line $m \ge 0$, and the interaction with the wall is modeled by a quenched site-dependent short-ranged random potential $u_j$ ($j=1,...,N$) located at $m=0$, with distribution $Q(u_j)$. By computing the first two moments, $\la G_N \ra$ and $\la G_N^2 \ra$, of the partition fu…

Telegrapher's Generative Model via Kac Flows
Richard Duong, Jannis Chemseddine, Peter Friz, Gabriele Steidl
https://arxiv.org/abs/2506.20641 https://…

Telegrapher's Generative Model via Kac Flows
We break the mold in flow-based generative modeling by proposing a new model based on the damped wave equation, also known as telegrapher's equation. Similar to the diffusion equation and Brownian motion, there is a Feynman-Kac type relation between the telegrapher's equation and the stochastic Kac process in 1D. The Kac flow evolves stepwise linearly in time, so that the probability flow is Lipschitz continuous in the Wasserstein distance and, in contrast to diffusion flows, the norm of the ve…

A 3D model simulation of hydrogen chloride photochemistry on Mars: Comparison with satellite data
Benjamin Benne (The University of Edinburgh, School of GeoSciences, UK, Centre for Exoplanet Science, University of Edinburgh, UK), Paul I. Palmer (The University of Edinburgh, School of GeoSciences, UK, Centre for Exoplanet Science, University of Edinburgh, UK), Benjamin M. Taysum (DLR, Germany), Kevin S. Olsen (Department of Physics, University of Oxford, UK, School of Physical Sciences,…

A 3D model simulation of hydrogen chloride photochemistry on Mars: Comparison with satellite data
HCl was detected in the Martian atmosphere by the NOMAD and ACS spectrometers aboard the ExoMars TGO. Photochemical models show that using gas-phase chemistry alone is insufficient to reproduce these data. Recent work has developed a heterogeneous chemical network within a 1D photochemistry model, guided by the seasonal variability in HCl. The aim of this work is to show that incorporating heterogeneous chlorine chemistry into a global 3D model of Martian photochemistry with conventional gas-ph…

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…

On the discrete Poincar\'e inequality for B-schemes of 1D Fokker-Planck equations in full space
Lei Li, Jian-Guo Liu, Zhen Wang
https://arxiv.org/abs/2507.03941

On the discrete Poincaré inequality for B-schemes of 1D Fokker-Planck equations in full space
In this paper, we propose two approaches to derive the discrete Poincaré inequality for the B-schemes, a family of finite volume discretization schemes, for the one-dimensional Fokker-Planck equation in full space. We study the properties of the spatially discretized Fokker-Planck equation in the viewpoint of a continuous-time Markov chain. The first approach is based on Gamma-calculus, through which we show that the Bakry-Émery criterion still holds in the discrete setting. The second approa…

The hydrodynamic thermal continuum, with applications to stratified atmospheres and 1D coronal loop models
Rony Keppens, Jordi De Jonghe, Adrian Kelly, Nicolas Brughmans, Hans Goedbloed
https://arxiv.org/abs/2506.23591

The hydrodynamic thermal continuum, with applications to stratified atmospheres and 1D coronal loop models
Using both analytical and numerical means, we demonstrate that linear stability analysis of a hydrodynamic stratified atmosphere or a 1D coronal loop model in non-adiabatic settings features a thermal continuum corresponding to highly localized eigenfunctions. This thermal continuum can be precomputed, involving the net heat-loss function and its partial derivatives, and is the generalization of the thermal instability introduced by~\citet{Parker1953}. We account for a thermal imbalance, direct…

Ta2Pd3Te8: A potential candidate of 1D van der Waals stacked thermoelectric materials
Shi Chen, Aijun Hong, Junming Liu
https://arxiv.org/abs/2508.05549 https://

Ta2Pd3Te8: A potential candidate of 1D van der Waals stacked thermoelectric materials
Discovering new thermoelectric (TE) materials is an eternal goal in the TE field. Excellent TE materials have ranged from 3D stacked to 2D stacked bulk. However, the 1D stacked receives little attention due to the scarcity in quantity. In this work, it is predicted that 1D van der Waals (vdW) stacked Ta2Pd3Te8 crystal is a compelling candidate for TE applications by combining first-principles calculations with phonon and electron Boltzmann transport equations and molecular dynamics methods. We …

New scattering zones in quantum speckle propagation
Shaurya Aarav, S. A. Wadood, Jason W Fleischer
https://arxiv.org/abs/2507.08408 https://

New scattering zones in quantum speckle propagation
Quantum speckles exhibit significantly richer behavior than their classical counterparts due to their higher dimensionality. A simple example is the far-field speckle pattern in 1D light scattering: classical light forms 1D speckles defined by the numerical aperture, whereas biphoton scattering depends in addition on the photon correlation length, forming 2D elliptical speckles. To date, the behavior of quantum speckles for shorter propagation distances has not been considered. We remedy this h…

High-root topological edge-state bands
R. G. Dias, L. Madail, A. M. Marques
https://arxiv.org/abs/2508.12066 https://arxiv.org/pdf/2508.12066

High-root topological edge-state bands
This paper presents a complex band analysis of one-dimensional (1D) square and high-root topological insulators (HRTIs). We show that edge-state bands of HRTIs are sliced sections of impurity bands of a uniform tight-binding chain. A simplified topological characterization of HRTIs with generalized boundary conditions is carried out based on the existence of edge-state bands in the infinite HRTI and the restrictions imposed by the boundary conditions. Edge states in finite or semi-infinite 1D H…

Formation and construction of large variational shock waves for 1-D $n\times n$ quasilinear hyperbolic conservation systems
Huicheng Yin, Wanqing Zhu
https://arxiv.org/abs/2506.19313

Formation and construction of large variational shock waves for 1-D $n\times n$ quasilinear hyperbolic conservation systems
In the paper [Li Jun, Xu Gang, Yin Huicheng, On the blowup mechanism of smooth solutions to 1D quasilinear strictly hyperbolic systems with large variational initial data, Nonlinearity 38 (2025), No.2, 025016], for the 1-D $n\times n$ ($n\geqslant 3$) strictly hyperbolic system $\partial_tv+F(v)\partial_xv=0$ with some classes of large variational initial data $v(x, 0)$, the geometric blowup mechanism and the detailed singularity behaviours of $\partial_{x,t}v$ near the blowup point are studied…

Confinement-induced resonances for the creation of quasi-1D ultra cold gases of alkali--alkaline-earth dimers
Lorenzo Oghittu, Premjith Thekkeppatt, Nirav P. Mehta, Seth T. Rittenhouse, Klaasjan van Druten, Florian Schreck, Arghavan Safavi-Naini
https://arxiv.org/abs/2506.02579

Confinement-induced resonances for the creation of quasi-1D ultra cold gases of alkali--alkaline-earth dimers
We theoretically investigate the role of confinement-induced resonances (CIRs) in low-dimensional ultracold atomic mixtures for the formation of weakly bound dimers. To this end, we examine the scattering properties of a binary atomic mixture confined by a quasi-one-dimensional (quasi-1D) potential. In this regime, the interspecies two-body interaction is modeled as an effective 1D zero-range pseudopotential, with a coupling strength $g_\mathrm{1D}$ derived as a function of the three-dimensiona…

Towards the Habitable Worlds Observatory: 1D CNN Retrieval of Reflection Spectra from Evolving Earth Analogs
Sarah G. A. Barbosa, Raissa Estrela, Paulo C. F. da Silva Filho, Daniel B. de Freitas
https://arxiv.org/abs/2508.00076

Towards the Habitable Worlds Observatory: 1D CNN Retrieval of Reflection Spectra from Evolving Earth Analogs
Upcoming direct-imaging missions like the Habitable Worlds Observatory (HWO) aim to characterize dozens of Earth-like exoplanets by capturing their reflected-light spectra. However, traditional atmospheric retrieval frameworks are too computationally intensive to explore the high-dimensional parameter spaces such missions will generate. Here, we present a one-dimensional convolutional neural network (1D CNN), trained on over one million synthetic, noise-injected spectra simulating Archean, Prot…

Barium isotopic ratios in metal-poor stars: calibrating the method with globular clusters
Riano E. Giribaldi, Laura Magrini, Jose Schiappacasse-Ulloa, Sofia Randich, Thibault Merle
https://arxiv.org/abs/2508.14208

Barium isotopic ratios in metal-poor stars: calibrating the method with globular clusters
Identifying the nucleosynthesis processes behind heavy-element enrichment in stellar atmospheres is challenging. It typically relies on comparing observed abundance-to-iron ratios with theoretical predictions relative to the Sun, but this method is prone to uncertainty due to limitations of classical 1D hydrostatic models. One promising but still underexplored approach is to measure the isotopic composition of stellar atmospheres by focusing on elements that have both slow (s)-process and rapid…

Sb2S3 and GaAs Absorber Layer-based Quantum Dot Solar Cells with Cadmium Telluride-based HTL: A Comparative Study
Sayak Banerjee (Department of Physics, Indian Institute of Technology, Jodhpur, Rajasthan, India-342037, Department of Metallurgical and Materials Engineering, Indian Institute of Technology, Jodhpur, Rajasthan, India), Anupam Chetia (Department of Physics, Indian Institute of Technology, Jodhpur, Rajasthan, India-342037), Satyajit Sahu (Department of Physics, Indian Instit…

Sb2S3 and GaAs Absorber Layer-based Quantum Dot Solar Cells with Cadmium Telluride-based HTL: A Comparative Study
Quantum dot solar cells (QDSC) are widely acknowledged to be one of the best solar energy harvesting devices in the present world. Absorber layer is a core component of a QDSC with a strong influence on its operational efficiency. Hence, we choose to undertake a comparative study of two QDSC having different QD absorber layers: Sb2S3 and GaAs with the motive to identify the better absorber layer material. The numerical analysis has been carried out using SCAPS-1D (Solar Cell Capacitance Simulat…

Quantitative quasi-invariance of Gaussian measures below the energy level for the 1D generalized nonlinear Schr\"odinger equation and application to global well-posedness
Alexis Knezevitch
https://arxiv.org/abs/2506.12582

Quantitative quasi-invariance of Gaussian measures below the energy level for the 1D generalized nonlinear Schrödinger equation and application to global well-posedness
We consider the Schrödinger equation on the one dimensional torus with a general odd-power nonlinearity $p \geq 5$, which is known to be globally well-posed in the Sobolev space $H^σ(\mathbb{T})$, for every $σ\geq 1$, thanks to the conservation and finiteness of the energy. For regularities $σ< 1$, where this energy is infinite, we explore a globalization argument adapted to random initial data distributed according to the Gaussian measures $μ_s$, with covariance operator $(1-Δ)^s$, for $…

The importance of the dynamical corotation torque for the migration of low-mass planets -- 1D analytical prescriptions verified by 2D hydrodynamical simulations
Jesse Weder, Cl\'ement Baruteau, Christoph Mordasini
https://arxiv.org/abs/2507.02050

The importance of the dynamical corotation torque for the migration of low-mass planets -- 1D analytical prescriptions verified by 2D hydrodynamical simulations
Recent developments suggested that planet formation occurs in regions of the discs with low turbulent viscosity. There, the dynamical corotation torque is thought to play an important role by slowing down type I migration. We aim to provide a simple analytical prescription for the dynamical corotation torque for use in 1D global models of planet formation and evolution, and assess the importance of the dynamical corotation torque for the migration of low-mass planets in low-viscosity discs. We …

1D YIG hole-based magnonic nanocrystal
K. O. Levchenko, K. Dav\'idkov\'a, R. O. Serha, M. Moalic, A. A. Voronov, C. Dubs, O. Surzhenko, M. Lindner, J. Panda, Q. Wang, O. Wojewoda, B. Heinz, M. Urb\'anek, M. Krawczyk, A. V. Chumak
https://arxiv.org/abs/2506.10591

1D YIG hole-based magnonic nanocrystal
Magnetic media with artificial periodic modulation-magnonic crystals (MCs) - enable tunable spin-wave dynamics and band structure engineering. Nanoscaling enhances these capabilities, making magnonic nanocrystals promising for both fundamental studies and applications. Here, we report on the design, fabrication, and characterization of one-dimensional YIG MCs with nanoholes ($d \approx $ 150 nm) spaced $a \approx 1 μ$m apart. Micro-focused Brillouin light scattering and propagating spin-wave s…

Coupled 1D Chemical Kinetic-Transport and 2D Hydrodynamic Modeling Supports a modest 1-1.5x Supersolar Oxygen Abundance in Jupiter's Atmosphere
Jeehyun Yang, Ali Hyder, Renyu Hu, Jonathan I. Lunine
https://arxiv.org/abs/2508.05007

Coupled 1D Chemical Kinetic-Transport and 2D Hydrodynamic Modeling Supports a modest 1-1.5x Supersolar Oxygen Abundance in Jupiter's Atmosphere
Understanding the deep atmospheric composition of Jupiter provides critical constraints on its formation and the chemical evolution of the solar nebula. In this study, we combine one-dimensional thermochemical kinetic-transport modeling with two-dimensional hydrodynamic simulations to constrain Jupiter's deep oxygen abundance using carbon monoxide (CO) as a proxy tracer. Leveraging a comprehensive chemical network generated by Reaction Mechanism Generator (RMG), we assess the impact of updated …

New class of time-periodic solutions to the 1D cubic wave equation
Filip Ficek, Maciej Maliborski
https://arxiv.org/abs/2506.10839 https://

New class of time-periodic solutions to the 1D cubic wave equation
In recent papers (arXiv:2407.16507, arXiv:2408.05158) we presented results suggesting the existence of a new class of time-periodic solutions to the defocusing cubic wave equation on a one-dimensional interval with Dirichlet boundary conditions. Here we confirm these findings by rigorously constructing solutions from this class. The proof uses rational arithmetic computations to verify essential operator bounds.

Extreme anharmonicity and thermal contraction of 1D wires
Chiara Cignarella, Lorenzo Bastonero, Lorenzo Monacelli, Nicola Marzari
https://arxiv.org/abs/2508.07971 https://

Extreme anharmonicity and thermal contraction of 1D wires
Ultrathin nanowires could play a central role in next-generation downscaled electronics. Here, we explore some of the most promising candidates identified from previous high-throughput screening: CuC$_2$, TaSe$_3$, and AuSe$_2$, to gain insight into the thermodynamic and anharmonic behaviors of nanowires that could be exfoliated from weakly-bonded three-dimensional materials. We analyze thermal stability, linear thermal expansion, and anharmonic heat capacity using the stochastic self-consisten…

Excitonic Properties and Optical Signatures in Quasi-1D Metal-Halide Perovskites with Tunable Octahedral Connectivity
Kostas Fykouras, Linn Leppert
https://arxiv.org/abs/2506.07762

Excitonic Properties and Optical Signatures in Quasi-1D Metal-Halide Perovskites with Tunable Octahedral Connectivity
Reducing the dimensionality of metal-halide perovskites enhances quantum and dielectric confinement, enabling tunable excitonic properties. In one dimension, the arrangement of metal-halide octahedra in chains with corner-, edge-, or face-sharing connectivity allows for additional structural flexibility. This not only expands material design possibilities but also reflects quasi-one-dimensional motifs that arise during perovskite formation but are poorly understood. Using first-principles many-…

Global well-posedness for the 1D cubic nonlinear Shcr\"odinger equation in $L^p,\,p>2$
Ryosuke Hyakuna
https://arxiv.org/abs/2506.08554 https://

Global well-posedness for the 1D cubic nonlinear Shcrödinger equation in $L^p,\,p>2$
In this paper, we show that the one dimensional cubic nonlinear Schrödinger equation is globally well posed in $L^p$ for $2\le p <13/6$. In particular, we prove that the global solution enjoys the persistence property for a twisted variable at any time, which implies the result is a natural exetension of the classical global well-posedness in $L^2$ to $L^p$. The proof exploits the data-decomposition argument originally developed by Vargas-Vega in the functional framework introduced by Zhou.