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We study transport in a one-dimensional lattice system with two conserved quantities -- `volume' and energy. Considering a slowly evolving local equilibrium state that is slightly deviated from an underlying global equilibrium, we estimate…

统计力学 · 物理学 2023-07-19 Anupam Kundu

We investigate the dynamical stability and phase transition behavior in a holographic superfluid model incorporating higher-order self-interaction terms $\lambda |\psi|^4$, $\tau|\psi|^6$, and a non-minimal coupling…

广义相对论与量子宇宙学 · 物理学 2026-04-02 Zi-Qiang Zhao , Mei-Ling Yan , Zhang-Yu Nie , Jing-Fei Zhang , Xin Zhang

We study transport in a one-dimensional boundary-driven Anderson insulator (the XX spin chain with onsite disorder) with randomly positioned onsite dephasing, observing a transition from diffusive to subdiffusive spin transport below a…

无序系统与神经网络 · 物理学 2021-05-12 Scott Richard Taylor , Antonello Scardicchio

This paper presents a method to stabilise oscillations occurring in a mixed convective flow in a nearly hemispherical cavity, using actuation based on the receptivity map of the unstable mode. This configuration models the continuous…

流体动力学 · 物理学 2025-06-18 Abhishek Kumar , Alban Pothérat

Let $\mathcal{F}$ be a $C^2$ random partially hyperbolic dynamical system. For the unstable foliation, the corresponding unstable metric entropy, unstable topological entropy and unstable pressure via the dynamics of $\mathcal{F}$ on the…

动力系统 · 数学 2020-07-14 Xinsheng Wang , Weisheng Wu , Yujun Zhu

Recently it has been demonstrated that the connectivity transition from microscopic connectivity to macroscopic connectedness, known as percolation, is generically announced by a cascade of microtransitions of the percolation order…

无序系统与神经网络 · 物理学 2016-01-25 Malte Schröder , Wei Chen , Jan Nagler

Disordered metasurfaces provide a versatile platform for harnessing near- and far-field scattered light. Most research has focused on either particulate topologies composed of individual, well-identified metaatoms or, to a lesser extent,…

光学 · 物理学 2025-12-16 Miao Chen , Adrian Agreda , Tong Wu , Franck Carcenac , Kevin Vynck , Philippe Lalanne

The excess adsorption $\Gamma $ in two-dimensional Ising strips $(\infty \times L)$ subject to identical boundary fields, at both one-dimensional surfaces decaying in the orthogonal direction $j$ as $-h_1j^{-p}$, is studied for various…

统计力学 · 物理学 2015-05-13 A. Drzewinski , A. Maciolek , A. Barasinski , S. Dietrich

Anisotropy of the permeability tensor in statistically uniform porous media of sizes used in typical computer simulations is studied. Although such systems are assumed to be isotropic by default, we show that de facto their anisotropic…

流体动力学 · 物理学 2015-05-13 Zbigniew Koza , Maciej Matyka , Arzhang Khalili

In this paper we carry out numerical analysis for a family of simplified gas transport models with hydrate formation and dissociation in subsurface, in equilibrium and non-equilibrium conditions. These models are adequate for simulation of…

数值分析 · 数学 2021-03-18 Malgorzata Peszynska , Choah Shin

We numerically investigate hyperuniformity in two-dimensional frictionless jammed packings of bidisperse systems. Hyperuniformity is characterized by the suppression of density fluctuations at large length scales, and the structure factor…

软凝聚态物质 · 物理学 2025-07-18 Duc T. Dam , Takeshi Kawasaki , Atsushi Ikeda , Kunimasa Miyazaki

Singularities in macroscopic systems at discontinuous phase transitions are replaced in finite systems by sharp but continuous changes. Both the energy differences between metastable and stable phases and the energy barriers separating…

统计力学 · 物理学 2009-11-13 Alexander Patashinski , Mark Ratner

Langer theory of metastability provides a description of the lifetime and properties of the metastable phase of the Ising model field-driven transition, describing the magnetic field-driven transition in ferromagnets and the chemical…

统计力学 · 物理学 2015-06-19 Miguel Ibáñez Berganza , Pietro Coletti , Alberto Petri

We show that the Turing patterns in reaction systems with subdiffusion can be replicated in an effective system with Markovian cross-diffusion. The effective system has the same Turing instability as the original system, and the same…

斑图形成与孤子 · 物理学 2020-01-29 Joseph W. Baron , Tobias Galla

Motivated by recent findings, we discuss the existence of a direct and robust mechanism providing discontinuous absorbing transitions in short range systems with single species, with no extra symmetries or conservation laws. We consider…

统计力学 · 物理学 2014-02-10 Carlos E. Fiore

In this paper, uniformly unconditionally stable first and second order finite difference schemes are developed for kinetic transport equations in the diffusive scaling. We first derive an approximate evolution equation for the macroscopic…

数值分析 · 数学 2022-11-10 Guoliang Zhang , Hongqiang Zhu , Tao Xiong

Generative diffusion models have achieved spectacular performance in many areas of machine learning and generative modeling. While the fundamental ideas behind these models come from non-equilibrium physics, variational inference and…

机器学习 · 统计学 2024-06-21 Luca Ambrogioni

Topological defects are fundamental to the collective dynamics of non-equilibrium systems and in active matter, mediating spontaneous flows, dynamic self-organization, and emergent pattern formation. Here, we reveal critical states in…

Universality is key to the theory of phase transition stating that the equilibrium properties of observables near a phase transition can be classified according to few critical exponents. These exponents rule an universal scaling behaviour…

Despite many attempts, ordered equilibrium microphases have yet to be obtained in experimental colloidal suspensions. The recent computation of the equilibrium phase diagram of a microscopic, particle-based microphase former [Zhuang et al.,…

软凝聚态物质 · 物理学 2017-09-07 Yuan Zhuang , Patrick Charbonneau
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