Crossover from generalized to conventional hydrodynamics in nearly integrable systems under relaxation time approximationUpon breaking the integrability, the equations of generalized hydrodynamics (GHD) are supplemented by a Boltzmann collision term. Such terms are typically complicated and stem from a perturbative…Saikat Santra, Maciej Łebek, Miłosz Panfil·Mar 2, 2026SaveLearn
Information-fluctuation inequalities for collective responseHidden stochastic effects acting uniformly on a many-particle system can generate strong correlations and macroscopic relative fluctuations that persist at large system sizes, even when the particles…Kristian Stølevik Olsen·Mar 2, 2026SaveLearn
Beyond the Big Jump: A Perturbative Approach to Stretched-Exponential ProcessesThe problem of sums of independent, identically distributed random variables with stretched-exponential tails exhibits a dynamical phase transition and has recently reemerged in the context of active…Alberto Bassanoni, Omer Hamdi·Mar 2, 2026SaveLearn
Magnetization plateaus, spin-canted orders and field-induced transitions in a spin-1/2 Heisenberg antiferromagnet on a distorted diamond-decorated honeycomb latticeWe investigate the spin-1/2 Heisenberg antiferromagnet on a distorted diamond-decorated honeycomb lattice in an external magnetic field. By combining density-matrix renormalization group,…Katarina Karlova, Jozef Strecka·Mar 2, 2026SaveLearn
Self-sustained Molecular Rectification without External Driving or InformationRectifying thermal white noise into directed motion is generally believed to require the consumption of energy or information, as exemplified by Maxwell's demon-type feedback controllers. Here we…Jiantang Jiang·Mar 2, 2026SaveLearn
Fixed points of Boolean networks with sparse connectionsWe study fixed points of cellular automata with N sites on random sparse graphs. In the large N limit such models are known to exhibit phase transitions, from a ``frozen'' phase, where at…Stav Marcus, Ari M. Turner, Guy Bunin et al.·Mar 1, 2026SaveLearn
Quantum Monte Carlo in Classical Phase Space with the Wigner-Kirkwood Commutation Function. II. Diagonal Approximation in Position SpaceA third order expansion for Wigner-Kirkwood commutation function, a complex function in classical phase space that accounts for the Heisenberg uncertainty relation, is approximated and integrated…Phil Attard·Mar 1, 2026SaveLearn
Simple models for mesoscopic systems: from slender structures to stochastic resettingThe objective of this thesis is to advance the understanding of complex physical phenomena through the lens of statistical physics. Specifically, it addresses two fundamental questions: What types of…Gregorio García-Valladares·Feb 28, 2026SaveLearn
Anomalous hydrodynamic fluctuations in the quantum XXZ spin chainThe quantum XXZ spin-1/2 chain features non-Gaussian spin current fluctuations in the regime of easy-axis anisotropy. Using ballistic macroscopic fluctuation theory, we derive the exact probability…Takato Yoshimura, Žiga Krajnik, Alvise Bastianello et al.·Feb 27, 2026SaveLearn
Exact Anomalous Current Fluctuations in Quantum Many-Body DynamicsFluctuations of integrated currents have attracted considerable interest over the past decades in the context of statistical mechanics. Recently, anomalous current fluctuations, characterized by the…Kazuya Fujimoto, Taiki Ishiyama, Taiga Kurose et al.·Feb 27, 2026SaveLearn
Thermalization-Induced Entropy-Rate Representation of Internal Energy in a Damped Quantum OscillatorWe study a harmonic oscillator weakly coupled to a thermal bath and evolving under the standard quantum-optical master equation. For zero-mean Gaussian states, entropy alone does not determine the…Hyeong-Chan Kim, Youngone Lee·Feb 27, 2026SaveLearn
Coarse-grained Shannon entropy of random walks with shrinking stepsIn one-dimensional diffusive processes with discrete steps characterized by geometrically decaying magnitudes, the usual Gaussian broadening familiar from Brownian motion is replaced by bounded…Alexander Feigel, Alexandre V. Morozov·Feb 27, 2026SaveLearn
Data-driven, non-Markovian modelling of weather in the presence of non-stationary, non-Gaussian, and heteroskedastic climate dynamicsWhile the generalized Langevin equation (GLE) is a powerful tool to understand the behavior of complex dissipative systems, driving by external fields renders standard GLE construction workflows…Thomas Sayer, Andrés Montoya-Castillo·Feb 27, 2026SaveLearn
Asymptotically Solvable Quantum CircuitsThe discovery of chaotic quantum circuits with (partially) solvable dynamics has played a key role in our understanding of non-equilibrium quantum matter and, at the same time, has helped the…Samuel H. Pickering, Bruno Bertini·Feb 27, 2026SaveLearn
Information bound on navigation speed in smart active matterIntelligent behavior in life-like systems often arises from the ability to gather, process, and act on information. While active matter provides a framework for studying life-like dynamics, it…Kristian Stølevik Olsen, Mitsusuke Tarama, Hartmut Löwen·Feb 27, 2026SaveLearn
Thermodynamic uncertainty relation under continuous measurement and feedback with quantum-classical-transfer entropyWe derive a thermodynamic uncertainty relation (TUR) under quantum continuous measurement and feedback control. By incorporating the quantum-classical-transfer entropy, which quantifies the…Kaito Tojo, Takahiro Sagawa, Ken Funo·Feb 26, 2026SaveLearn
Dephasing-induced relaxation in tight-binding chains with linear and nonlinear defectsWe investigate thermalization in a tight-binding chain with an on-site defect subject to local dephasing noise implemented as random phase kicks. For a single linear defect of strength ε, we obtain…Debraj Das, Andrea Gambassi, Stefano Iubini et al.·Feb 26, 2026SaveLearn
Mesoscopic fluctuation theory of particle systems driven by Poisson noise: study of the q-TASEPWe pursue our study of integrable weak noise theories of directed polymer and interacting particle stochastic models in the 1D KPZ universality class. Here we focus on the q-TASEP in either…Alexandre Krajenbrink, Pierre Le Doussal·Feb 26, 2026SaveLearn
Computing Nonequilibrium Transport from Short-Time Transients: From Lorentz Gas to Heat Conduction in One Dimensional ChainsWe test the Transient Time Correlation Function (TTCF) method to compute nonequilibrium transport coefficients, highlighting its conceptual and practical difference from the standard time-average…Davide Carbone, Vincenzo Di Florio, Stefano Lepri et al.·Feb 25, 2026SaveLearn
Structural Viscosity, Thermal Waves, and the Mpemba Effect from Extended Structural DynamicsClassical hydrodynamics rests on the point-particle idealization, leading to parabolic transport equations, infinite signal speeds, and the inability to capture finite time relaxation, anisotropic…Patrick BarAvi·Feb 25, 2026SaveLearn
XY Model with Persistent NoiseWe consider a 2D XY model subjected to time-correlated noise, a model of direct relevance to active crystals, which were shown recently to be able to support very large deformations without melting…Xia-qing Shi, Hugues Chaté, Benoît Mahault·Feb 25, 2026SaveLearn
A diffusion approximation for systems with frequent weak resettingWe develop a diffusion approximation for systems subject to fast random resetting by small amplitudes. Equivalently, this describes systems with frequent but small catastrophes. We demonstrate the…Tobias Galla·Feb 25, 2026SaveLearn
Fluctuation theorems for a non-Gaussian systemIn this work, we numerically verify the Jarzynski equality and Crook fluctuation theorem for a Brownian particle diffusing in a heterogeneous thermal bath and hence having a non-Gaussian position…A. Saravanan, I. Iyyappan·Feb 24, 2026SaveLearn
Yet another look at narrow escape through a tubeThe narrow escape problem concerns the time needed for a diffusing particle to exit a confining domain through a small hole in the boundary. While this problem is now well-understood, determining the…Victorya Richardson, Yick Hin Ling, Sean D Lawley·Feb 24, 2026SaveLearn
Criticality Beyond Nonanalyticity: Intrinsic Microcanonical Signatures of Phase TransitionsPhase transitions are conventionally defined by nonanalyticities of thermodynamic potentials in the thermodynamic limit. In this Letter, we show that the singularity is not the definition of…Loris Di Cairano·Feb 24, 2026SaveLearn