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A new class of models, generalizing Asymmetric Exclusion Process for many parallel interacting channels, is proposed. We couple the models with boundary reservoirs, study boundary-driven phase transitions and show that usually taken…

统计力学 · 物理学 2011-07-13 V. Popkov , M. Salerno

The concept of diffusion in collisionless space plasmas like those near the magnetopause and in the geomagnetic tail is reexamined from a fundamental statistical point of view making use of the division of particle orbits into waiting…

空间物理 · 物理学 2014-06-25 R. A. Treumann , W. Baumjohann

We construct a non reversible exclusion process with Bernoulli product invariant measure and having, in the diffusive hydrodynamic scaling, a non symmetric diffusion matrix, that can be explicitly computed. The antisymmetric part does not…

概率论 · 数学 2025-02-18 Leonardo De Carlo , Davide Gabrielli , Patrícia Gonçalves

We analyze the evolution of hydrodynamic fluctuations for QCD matter below $T_c$ in the chiral limit, where the pions (the Goldstone modes) must be treated as additional non-abelian superfluid degrees of freedom, reflecting the broken…

高能物理 - 理论 · 物理学 2020-08-05 Eduardo Grossi , Alexander Soloviev , Derek Teaney , Fanglida Yan

We analyze the chiral transport terms in relativistic superfluid hydrodynamics. In addition to the spontaneously broken symmetry current, we consider an arbitrary number of unbroken symmetries and extend the results of arXiv:1105.3733. We…

高能物理 - 理论 · 物理学 2013-12-12 Yasha Neiman , Yaron Oz

This article explores particle number diffusion in relativistic hydrodynamics using kinetic theory with a modified collision kernel that incorporates the momentum dependence of the particle relaxation time. Starting from the Boltzmann…

高能物理 - 唯象学 · 物理学 2025-05-27 Sunny Kumar Singh , Samapan Bhadury , Manu Kurian , Vinod Chandra

Biological functionality of cellular aggregates is largely influenced by the activity and displacements of individual constituent cells. From a theoretical perspective this activity can be characterized by hydrodynamic transport…

软凝聚态物质 · 物理学 2025-07-31 Subhadip Chakraborti , Vasily Zaburdaev

We study hydrodynamic electron transport in Corbino graphene devices. Due to the irrotational character of the flow, the forces exerted on the electron liquid are expelled from the bulk. We show that in the absence of Galilean invariance,…

介观与纳米尺度物理 · 物理学 2022-03-11 Songci Li , Alex Levchenko , A. V. Andreev

Generalizations of Onsager reciprocity relations are established for the nonlinear response coefficients of ballistic transport in the effusion of gaseous mixtures. These generalizations, which have been established on the basis of the…

统计力学 · 物理学 2011-03-29 Pierre Gaspard , David Andrieux

Diffusion processes are studied theoretically for the case where the diffusion coefficient is itself a time and position dependent random function. We investigate how inhomogeneities and fluctuations of the diffusion coefficient affect the…

统计力学 · 物理学 2014-08-05 Jacopo Bertolotti

Green-Kubo and Einstein expressions for the transport coefficients of a fluid in a nonequilibrium steady state can be derived using the Fluctuation Theorem and by assuming the probability distribution of the time-averaged dissipative flux…

统计力学 · 物理学 2009-10-31 Debra J. Searles , Denis J. Evans

We prove the symmetry of the Diffusion Coefficient appearing in the fluctuation-dissipation theorem for the general asymmetric simple exclusion process.

概率论 · 数学 2015-08-18 Michail Loulakis

We introduce non-trivial contributions to diffusion constant in generic many-body systems arising from quadratic fluctuations of ballistically propagating, i.e. convective, modes. Our result is obtained by expanding the current operator in…

统计力学 · 物理学 2020-11-25 Marko Medenjak , Jacopo De Nardis , Takato Yoshimura

Memory effects in transport require, for their incorporation into reaction diffusion investigations, a generalization of traditional equations. The well-known Fisher's equation, which combines diffusion with a logistic nonlinearity, is…

斑图形成与孤子 · 物理学 2009-11-07 Guillermo Abramson , Alan R. Bishop , V. M. Kenkre

We experimentally, numerically and analytically explore the diffusive transport of active colloidal particles with sensory delay, navigating motility landscapes in which the self-propulsion speed depends on space. We show how the transport…

统计力学 · 物理学 2026-04-29 Adrià Garcés , Ueli Töpfer , Lucio Isa , Demian Levis , Ignacio Pagonabarraga

We consider the junction of multiple one-dimensional systems and study how conserved currents transport at the junction. To characterize the transport process, we introduce reflection/transmission coefficients by applying boundary conformal…

高能物理 - 理论 · 物理学 2015-07-30 Taro Kimura , Masaki Murata

We extend an infrared-deformed soft-wall anti de-Sitter/QCD model at zero temperature to a model at finite temperature and perform hydrodynamics. To have the infalling boundary condition to make the hydrodynamic analysis possible, we treat…

高能物理 - 唯象学 · 物理学 2013-07-25 Shingo Takeuchi , Yue-Liang Wu

Universal nonequilibrium properties of isolated quantum systems are typically probed by studying transport of conserved quantities, such as charge or spin, while transport of energy has received considerably less attention. Here, we study…

统计力学 · 物理学 2023-03-09 Marko Ljubotina , Jean-Yves Desaules , Maksym Serbyn , Zlatko Papić

Real data are constrained to finite sampling rates, which calls for a suitable mathematical description of the corrections to the finite-time estimations of the dynamic equations. Often in the literature, lower order discrete time…

数据分析、统计与概率 · 物理学 2015-05-13 C. Anteneodo , R. Riera

We numerically study spin transport and nonequilibrium spin-density profiles in a clean one-dimensional spin-chain with long-range interactions, decaying as a power-law,$r^{-\alpha}$ with distance. We find two distinct regimes of transport:…

无序系统与神经网络 · 物理学 2019-03-27 Benedikt Kloss , Yevgeny Bar Lev