Relationship between Heider links and Ising spinsWe show that the Heider model with an external field is equivalent, in the limit of structural balance, to the Ising model with nearest-neighbor interactions without an external field. More…Zdzisław Burda, Maciej Wołoszyn, Krzysztof Malarz et al.·Apr 14, 2026SaveLearn
Koopman Mode Decomposition of Thermodynamic Dissipation in Nonlinear Langevin DynamicsNonlinear oscillations are commonly observed in complex systems far from equilibrium, such as living organisms. These oscillations are essential for sustaining vital processes, like neuronal firing,…Daiki Sekizawa, Sosuke Ito, Masafumi Oizumi·Apr 14, 2026SaveLearn
Scar subspaces stabilized by algebraic closure: Beyond equally-spaced spectra and exact solvabilityWe construct a class of quantum many-body systems hosting an su(3)-invariant scar subspace, extending the conventional paradigm of quantum many-body scars beyond equally spaced spectra…Chihiro Matsui·Apr 13, 2026SaveLearn
Dynamical Regimes of Discrete Diffusion ModelsDiffusion models generate high-dimensional data such as images by learning a process that gradually removes noise from corrupted data. Recent studies have shown that the backward dynamics of…Tomoei Takahashi, Takashi Takahashi, Yoshiyuki Kabashima·Apr 13, 2026SaveLearn
Perspective: Measuring physical entropy out of equilibriumEntropy is one of the key thermodynamic variables reflecting changes in the state of matter. Unlike other thermodynamic variables, it is well-defined also for nonequilibrium steady states through its…Haim Diamant, Gil Ariel·Apr 13, 2026SaveLearn
Diffusing diffusivity model with dichotomous noiseWe study Langevin dynamics with stochastic diffusivity arising from fluctuations of the surrounding medium. The diffusivity is modeled as Ornstein-Uhlenbeck process driven by symmetric dichotomous…Dongho Lee, Jae-Hyung Jeon, Pascal Viot et al.·Apr 13, 2026SaveLearn
Thermodynamic fluctuations in freely jointed chains under forceIt is common to study polymer physics through the use of idealized single-chain models, and the most popular of these is the freely jointed chain model. In certain thermodynamic ensembles,…Michael R. Buche, Alvin Chen·Apr 13, 2026SaveLearn
Inverse engineering of cooling protocols: from normal behavior to Mpemba effectsWhen a cup of hot coffee is suddenly put into a cold environment, it cools down as a function of time t until the internal temperature Tint of the coffee equals the external ambient…Hartmut Löwen·Apr 13, 2026SaveLearn
Optimization of cooling power of a thermoelectric refrigerator: A unified approachWe analyze the steady-state formalism for optimizing the cooling power of a thermoelectric refrigerator (TER), unifying the endoreversible and exoreversible approximations within one framework.…Rajeshree Chakraborty, Ramandeep S. Johal·Apr 13, 2026SaveLearn
Absence of thermalization after a local quench and strong violation of the eigenstate thermalization hypothesisAbsence of thermalization after a global quantum quench is a well-established numerical observation in integrable many-body systems, and can be empirically related to a violation of the eigenstate…Peter Reimann, Christian Eidecker-Dunkel·Apr 13, 2026SaveLearn
Sluggish quantum mechanics of noninteracting fermions with spatially varying effective massWe analyze a class of one-dimensional quantum systems characterized by a position-dependent kinetic term arising as the continuum limit of an inhomogeneous tight-binding model with spatially varying…Giuseppe Del Vecchio Del Vecchio, Manas Kulkarni, Satya N. Majumdar et al.·Apr 13, 2026SaveLearn
Tensor-Network Population AnnealingWe propose a hybrid sampling method, tensor-network population annealing (TNPA), which combines tensor-network (TN) initialization with population annealing (PA). We apply this method to the…Takumi Oshima, Yuma Ichikawa, Koji Hukushima·Apr 13, 2026SaveLearn
Forecasting Return Time of Extreme Precipitation by Large Deviation TheoryForecasting extreme precipitation is essential yet challenging due to its rarity and complexity. We develop a large deviation framework to estimate the return times of extreme precipitation events.…Haotian Xie, Haoxian Liu, Jingfang Fan et al.·Apr 13, 2026SaveLearn
Dynamical scaling method improved by a deep learning approachWe propose a dynamical scaling analysis improved by a deep learning approach. While Gaussian process regression has been widely employed for estimating scaling parameters, its computational cost for…Yusuke Terasawa, Yukiyasu Ozeki·Apr 13, 2026SaveLearn
Smart Walkers in Discrete SpaceWe study the statistical properties of trainable agents moving in discrete space. After introducing the mathematical framework, we first analyze the dynamics of two completely random walkers,…Gianluca Peri, Lorenzo Buffoni, Giacomo Chiti et al.·Apr 13, 2026SaveLearn
Confined kinetics and heterogeneous diffusion driven by fractional Gaussian noise: A path integral approachMany complex systems are described by Langevin-type equations in which the noise exhibits long-range correlations and couples to the system in a state-dependent, multiplicative manner, leading to…David Santiago Quevedo, Felipe Segundo Abril-Bermúdez, Cristiane Morais Smith·Apr 12, 2026SaveLearn
Heat Conduction in Momentum-Conserving Fluids: From quasi-2D to 3D systemsUsing nonequilibrium and equilibrium molecular dynamics simulations, we investigate heat conduction in a momentum-conserving mesoscopic fluid modeled by multiparticle collision dynamics. Across…Rongxiang Luo, Jiaqi Wen, Juncheng Guo·Apr 12, 2026SaveLearn
Thermodynamic conditions ensure the stability of third-order extended heat conductionIn a recent work, Somogyfoki et al. (J. Non-Equilib. Thermodyn. 50, 59-76, 2025) analysed the linear stability of homogeneous equilibrium in third-order non-Fourier heat conduction within the…Peter Ván, Réka Somogyfoki·Apr 11, 2026SaveLearn
Beyond Whittle: exact finite-time multispectral statistics from a single Brownian trajectory in a harmonic trapPower spectral densities are often interpreted through ensemble averages and long-time asymptotics. In many experiments, however, only a single finite record is available, so spectral estimators…Isaac Pérez Castillo, François Leyvraz, Miguel Eduardo Gómez Quintanar et al.·Apr 11, 2026SaveLearn
Spectral Softening and the Structural Breakdown of Thermodynamic EquilibriumUnder sufficiently slow driving, thermodynamics predicts reversible evolution through a sequence of equilibrium states. We show that this expectation fails near spectral degeneracy in driven…Ilki Kim·Apr 11, 2026SaveLearn
Universality and ambiguity in extremes of anomalous diffusionMany biophysical processes begin when the fastest searcher finds a target out of many random searchers, which is called an extreme or fastest first passage time (fFPT). In some models, (i) the fFPT…Sean D Lawley·Apr 11, 2026SaveLearn
Complex paths for real stochastic processesThe calculation of the decay rate of a metastable state in the path-integral formulation of stochastic processes is revisited. Previous derivations of this rate were achieved at the cost of a step…D. A. Baldwin, A. J. McKane, S. P. Fitzgerald·Apr 10, 2026SaveLearn
Multiscale perturbative approach to active matter with motility regulationWe present a coarse-graining method applicable to dry scalar active matter with motility regulation. Our approach, based on a multiscale perturbative expansion of the backward Kolmogorov equation,…Alberto Dinelli, Pietro Luigi Muzzeddu·Apr 10, 2026SaveLearn
Unifying hydrodynamic theory for motility-regulated active matter: from single particles to interacting polymersUnderstanding how microscopic motility shapes emergent collective behaviors is a challenging task in active matter, especially when self-propulsion is regulated by external cues or via quorum-sensing…Alberto Dinelli, Pietro Luigi Muzzeddu·Apr 10, 2026SaveLearn
Steady-state phonon heat currents and differential thermal conductance across a junction of two harmonic phonon reservoirsWe study phonon transport in junctions of two harmonic reservoirs coupled together by a spring. The exact steady-state heat currents and thermal conductance are calculated using nonequilibrium…Eduardo C. Cuansing, Juan Rafael K. Bautista·Apr 10, 2026SaveLearn