Criticality around the Spinodal Point of First-Order Quantum Phase TransitionsUniversality and scaling are hallmarks of second-order phase transitions but are generally unexpected in first-order quantum phase transitions (FOQPTs). We present a microscopic theory showing that…Fan Zhang, Chiao Wang, H. T. Quan·May 28, 2026SaveLearn
The unique, universal entropy for complex systemsA unique, universal definition for the entropy of nonlinear, complex systems is proposed. The Shannon entropy is shown to measure energetic, configurational, and nonlinear degrees of freedom (DOF).…Kenric P. Nelson·May 28, 2026SaveLearn
Dean-Kawasaki fluctuating hydrodynamics for backscattering hard rodsWe study a system of backscattering hard rods in one dimension. Contrary to the usual ballistic hard rods, these hard rods flip the sign of their velocities with a rate γ. This leads to the decay…Mrinal Jyoti Powdel·May 28, 2026SaveLearn
Time-Uniform Error Bound for Temporal Coarse Graining in Markovian Open Quantum SystemsSeveral approximation procedures, such as the full or partial rotating-wave, time-averaging, and geometric-arithmetic approximations, have been proposed to derive…Teruhiro Ikeuchi, Takashi Mori·May 28, 2026SaveLearn
Transient Acceleration and Cross-Dissipation Interference in Fisher-Regularized Wasserstein Gradient FlowsWe study transient nonequilibrium dynamics in Fisher-regularized Wasserstein gradient flows and identify a sign-changing cross-dissipation mechanism generated by the coupling between transport…Michael Farmer, Abhinav Kochar, Yugyung Lee·May 28, 2026SaveLearn
Exact solution of a two-dimensional (2D) Ising model with the next nearest interactionsThe exact solution of a two-dimensional (2D) Ising model with the next nearest interactions at zero magnetic field is derived. At first, the transfer matrices are analyzed in three representations,…Zhidong Zhang·May 28, 2026SaveLearn
Impact of temporary lockdown on disease extinction in assortative networksChanging environmental conditions can significantly affect the dynamics of disease spread. These changes may arise naturally or result from human interventions; in the latter case, lockdown measures…Elad Korngut, Michael Assaf·May 28, 2026SaveLearn
Random initial data and average shock time in the Fermi-Pasta-Ulam-Tsingou chainWe investigate the dynamics of the Fermi--Pasta--Ulam--Tsingou chain with long-wavelength random initial data. When the energy per particle is small, thermal equilibrium is not reached on a fast…Matteo Gallone, Ricardo Grande, Antonio Ponno et al.·May 28, 2026SaveLearn
Disorder-engineered magnetic compensation in trilayered square Ising ferrimagnet: a Monte Carlo studyIn this study, we examine how the thermomagnetic characteristics of spin-1/2 Ising trilayer ferrimagnets made of coupled square monolayers with ABA and AAB stacking sequences are affected by…Soham Chandra·May 28, 2026SaveLearn
Long-Time Limits of Local Operator Entanglement in Interacting Integrable ModelsWe explore the long-time behavior of Local Operator Entanglement entropy (LOE) in finite-size interacting integrable systems. For certain operators in the Rule 54 automaton, we prove that the LOE…J. Alexander Jacoby, Sarang Gopalakrishnan·May 28, 2026SaveLearn
Multispecies Bhatnagar-Gross-Krook models and the Onsager reciprocal relationsIt is shown that most of the existing versions of the Bhatnagar-Gross-Krook model - those whose coefficient are independent of the molecular velocity - do not satisfy the Onsager relations.…E. S. Benilov·May 28, 2026SaveLearn
Multifractal Complexity of the Chandler Wobble and Its Anomalous Disappearance (2015--2020): A MFDFA StudyThe Chandler wobble (CW) -- the 433-day free nutation of Earth's rotation pole -- experienced an anomalous near-disappearance between 2015 and 2020, followed by a re-excitation with an…Sebastián Jaroszewicz, Nahuel Mendez, Maria P. Beccar-Varela et al.·May 27, 2026SaveLearn
Thermodynamic properties of chemically disordered compounds via AI-driven estimation of partition function with the PULSE methodIn this article, we present an improved version of the PULSE method (Partition function Unsupervised Learning Sampling and Evaluation) for estimating the thermodynamic properties of chemically…Baptiste Bernard, Luca Messina, Eiji Kawasaki et al.·May 27, 2026SaveLearn
The Resetting Heat Engine: A Thermodynamic Cycle of Thermal Expansion and CompressionWe consider a Brownian particle confined by an external potential and subject to stochastic resetting to the origin. Motivated by the repetitive nature of the dynamics, we describe the process as a…Oded Farago·May 27, 2026SaveLearn
Barrier crossing in a two-state system: Effect of bias and stochastic fieldsWe study barrier crossing in a two-state system, namely the kinetic Ising model, in the presence of a weak bias field and spatially homogeneous, but time-dependent, Gaussian random fields. We find…Sara Oliver-Bonafoux, Raúl Toral, Amitabha Chakrabarti·May 27, 2026SaveLearn
Finite-size occupancy scaling of apparent fractal dimensions in stochastic trajectoriesEstimating a fractal dimension from a finite stochastic trajectory is a finite-size scaling problem: the apparent box-counting exponent is shaped by an occupancy crossover between the resolved range…Bon A. Koo, Edward Ju·May 27, 2026SaveLearn
Spectral Decimation of Quantum Many-Body HamiltoniansWe develop a systematic theory of spectral decimation for quantum many-body Hamiltonians and show that it provides a quantitative probe of emergent symmetries in statistically mixed spectra. Building…Feng He, Arthur Hutsalyuk, Giuseppe Mussardo et al.·May 27, 2026SaveLearn
Exact critical-temperature bounds for two-dimensional Ising modelsWe derive exact critical-temperature bounds for the classical ferromagnetic Ising model on two-dimensional periodic tessellations of the plane. For any such tessellation or lattice, the critical…Davidson Noby Joseph, Igor Boettcher·May 27, 2026SaveLearn
Thermodynamic uncertainty relation for generalized time-reversal observablesTime-reversal symmetry plays an essential role in the thermodynamic uncertainty relations, which bound the fluctuations of observables in terms of the associated dissipation. In fact, thermodynamic…Tetta Indo, Yoshihiko Hasegawa·May 27, 2026SaveLearn
A method for calculating entropy production without knowing transition rates or dwell timesThe entropy production rate is central to the study of non-equilibrium systems. This parameter is closely connected to violation of time-reversal symmetry, energy consumption, efficiency, and other…John W. Biddle·May 26, 2026SaveLearn
Quantum fluctuations and chaos in fully connected spin modelsWe investigate beyond-mean-field dynamics in a fully connected SU(3) spin-exchange model, focusing on the interplay between chaotic dynamics and quantum fluctuations. Using the…Aleksandra A. Ziolkowska, Aleksandr N. Mikheev·May 26, 2026SaveLearn
Subdiffusion equation with Cattaneo effectThe ordinary subdiffusion equation, with a fractional time derivative of at most first order, describes a process in which the propagation velocity of diffusing molecules is unlimited. To avoid this…Tadeusz Kosztołowicz, Aldona Dutkiewicz, Katarzyna D. Lewandowska·May 26, 2026SaveLearn
A tridiagonal matrix-valued process with stochastic resetting for arbitrary Dyson index β>0We introduce a symmetric tridiagonal matrix-valued process (β-TMP) H(t) whose diagonal entries Hk,k(t) evolve independently via an Ornstein-Uhlenbeck process starting at the origin and the…Gernot Akemann, Satya N. Majumdar, Patricia Päßler·May 26, 2026SaveLearn
Long-range deformations in Gaussian StatesImaginary-time evolution by a local Hamiltonian cannot induce a phase transition in one dimension, but longer-range interactions may subvert such constraints. Starting from the ground state of the…Francisco Pereira, Nandagopal Manoj, Sara Murciano·May 26, 2026SaveLearn
Spatiotemporal Structures of Parametrically Driven Nonlinear LatticesWe theoretically investigate the effects of parametric driving on the one-dimensional Frenkel-Kontorova model, a nonlinear many-body lattice system. It is numerically found that a parametric…Yu Funami, Kazushi Aoyama·May 26, 2026SaveLearn