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In self-gravitating stars, two dimensional or geophysical flows and in plasmas, long range interactions imply a lack of additivity for the energy; as a consequence, the usual thermodynamic limit is not appropriate. However, by contrast with…

统计力学 · 物理学 2009-11-13 Freddy Bouchet , Julien Barré , Antoine Venaille

We find analytical solutions to the evolution of interacting two-level atoms when the master equation is symmetric under the permutation of atomic labels. The master equation includes atomic independent dissipation. The method to obtain the…

量子物理 · 物理学 2020-08-26 W. Alvarez-Giron , P. Barberis-Blostein

Periodic microphases universally emerge in systems for which short-range inter-particle attraction is frustrated by long-range repulsion. The morphological richness of these phases makes them desirable material targets, but our relatively…

软凝聚态物质 · 物理学 2016-03-03 Yuan Zhuang , Kai Zhang , Patrick Charbonneau

In this paper we present a sufficient condition for the existence of a solution for an equilibrium problem on an Hadamard manifold and under suitable assumptions on the sectional curvature, we propose a framework for the convergence…

最优化与控制 · 数学 2014-04-01 G. C. Bento , J. X. Cruz Neto , P. A. Soares , A. Soubeyran

In this paper, we investigate a new extragradient algorithm for solving pseudomonotone equilibrium problems on Hadamard manifolds. The algorithm uses a variable stepsize which is updated at each iteration and based on some previous…

最优化与控制 · 数学 2021-07-27 Jingjing Fan , Bing Tan , Songxiao Li

Self-assembly is a ubiquitous process in synthetic and biological systems, broadly defined as the spontaneous organization of multiple subunits (e.g. macromolecules, particles) into ordered multi-unit structures. The vast majority of…

软凝聚态物质 · 物理学 2023-08-08 Michael F. Hagan , Gregory M. Grason

We characterize the conditions under which a multi-time quantum process with a finite temporal resolution can be approximately described by an equilibrium one. By providing a generalization of the notion of equilibration on average, where a…

量子物理 · 物理学 2020-10-02 Pedro Figueroa-Romero , Kavan Modi , Felix A. Pollock

We consider numerical approximation to the solution of non-autonomous evolution equations. The order of convergence of the simplest possible Magnus method will be investigated.

泛函分析 · 数学 2011-11-23 András Bátkai , Eszter Sikolya

The time evolution of a finite fermion system towards statistical equilibrium is investigated using analytical solutions of a nonlinear partial differential equation that had been derived earlier from the Boltzmann collision term. The…

统计力学 · 物理学 2018-12-07 T. Bartsch , G. Wolschin

We present a method to determine the equilibrium geometry of large atomistic systems with linear scaling. It is based on a separate treatment of long and short wavelength components of the forces. While the rapidly varying part is handled…

材料科学 · 物理学 2009-11-07 Stefan Goedecker , Frederic Lancon , Thierry Deutsch

The nonequilibrium phase transition in a system of diffusing, coagulating particles in the presence of a steady input and evaporation of particles is studied. The system undergoes a transition from a phase in which the average number of…

统计力学 · 物理学 2009-11-10 R. Rajesh

Equilibrium statistical mechanics is intended to link the microscopic dynamics of particles to the thermodynamic laws for macroscopic quantities. However, the modern statistical theory is faced with significant difficulties, as applied to…

统计力学 · 物理学 2016-03-15 A. G. Godizov , A. A. Godizov

We use analytic theory and computer simulation to study patterns formed during the growth of two-component assemblies in 2D and 3D. We show that these patterns undergo a nonequilibrium phase transition, at a particular growth rate, between…

统计力学 · 物理学 2014-05-12 Stephen Whitelam , Lester O. Hedges , Jeremy D. Schmit

Symmetry is a powerful tool for understanding phases of matter in equilibrium. Quantum circuits with measurements have recently emerged as a platform for novel states of matter intrinsically out of equilibrium. Can symmetry be used as an…

量子物理 · 物理学 2025-06-18 Zhi Li , Zhu-Xi Luo

In this paper we examine a mutual control problem for systems of two abstract evolution equations subject to a proportionality final condition. Related observability and semi-observability problems are discussed. The analysis employs a…

偏微分方程分析 · 数学 2024-09-17 Radu Precup , Andrei Stan

AI in Math deals with mathematics in a constructive manner so that reasoning becomes automated, less laborious, and less error-prone. For algorithms, the question becomes how to automate analyses for specific problems. For the first time,…

计算机科学与博弈论 · 计算机科学 2023-10-13 Xiaotie Deng , Dongchen Li , Hanyu Li

Recent efforts on solving inverse problems in imaging via deep neural networks use architectures inspired by a fixed number of iterations of an optimization method. The number of iterations is typically quite small due to difficulties in…

图像与视频处理 · 电气工程与系统科学 2021-06-04 Davis Gilton , Gregory Ongie , Rebecca Willett

The behavior of a surface energy $\mathcal F(E,u)$, where $E$ is a set of finite perimeter and $u\in L^1(\partial^* E, \mathbb R_+)$ is studied. These energies have been recently considered in the context of materials science to derive a…

偏微分方程分析 · 数学 2018-06-13 Marco Caroccia , Riccardo Cristoferi , Laurent Dietrich

An open question in the field of non-equilibrium statistical physics is whether there exists a unique way through which non-equilibrium systems equilibrate irrespective of how far they are away from equilibrium. To answer this question we…

统计力学 · 物理学 2014-03-14 P. Barat , A. Giri , Nilangshu K. Das , M. Bhattacharya , A. Dutta

In this paper, we introduce a particular class of matrices. We study the concept of a matrix to be \emph{balanced}. We study some properties of this concept in the context of matrix operations. We examine the behaviour of various matrix…

环与代数 · 数学 2026-03-12 Theophilus Agama , Gael Kibiti