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The bulk and boundary magnetizations are calculated for the critical Ising model on a randomly triangulated disk in the presence of a boundary magnetic field h. In the continuum limit this model corresponds to a c = 1/2 conformal field…

高能物理 - 理论 · 物理学 2008-11-26 Sean M. Carroll , Miguel E. Ortiz , Washington Taylor

We study electron correlations and their impact on magnetic properties of bcc vanadium by a combination of density functional and dynamical mean-field theory. The calculated uniform magnetic susceptibility {in bcc structure} is of Pauli…

强关联电子 · 物理学 2023-01-12 A. S. Belozerov , A. A. Katanin , V. I. Anisimov

Systems describing the long-range interaction between individuals have attracted a lot of attention in the last years, in particular in relation with living systems. These systems are quadratic, written under the form of transport equations…

偏微分方程分析 · 数学 2023-06-13 Marie Doumic , Sophie Hecht , Benoit Perthame , Diane Peurichard

We provide numerical indications of the $q$-generalised central limit theorem that has been conjectured (Tsallis 2004) in nonextensive statistical mechanics. We focus on $N$ binary random variables correlated in a {\it scale-invariant} way.…

统计力学 · 物理学 2007-05-23 Luis G. Moyano , Constantino Tsallis , Murray Gell-Mann

We study the dynamics of a system of N classical spins with infinite-range interaction. We show that, when the thermodynamic limit is taken before the infinite-time limit, the system does not relax to the Boltzmann-Gibbs equilibrium, but…

凝聚态物理 · 物理学 2009-11-07 V. Latora , A. Rapisarda , C. Tsallis

We consider a generalization of the so-called divide and color model recently introduced by Haggstrom. We investigate the behaviour of the magnetization in large boxes and its fluctuations. Thus, laws of large numbers and Central Limit…

概率论 · 数学 2007-05-23 Olivier Garet

In this article we review recent generalisations of the central limit theorem for the sum of specially correlated (or q-independent) variables, focusing on q greater or equal than 1. Specifically, this kind of correlation turns the…

统计力学 · 物理学 2007-12-16 Silvio M. Duarte Queiros , Constantino Tsallis

We study diffusive mixing in the presence of thermal fluctuations under the assumption of large Schmidt number. In this regime we obtain a limiting equation that contains a diffusive thermal drift term with diffusion coefficient obeying a…

统计力学 · 物理学 2015-06-18 A. Donev , T. G. Fai , E. Vanden-Eijnden

The thermodynamics and covariant kinetic theory have been elaborately investigated in a non-extensive environment considering the non-extensive generalization of Bose-Einstein (BE) and Fermi-Dirac (FD) statistics. Starting with Tsallis'…

核理论 · 物理学 2018-02-08 Sukanya Mitra

We prove that for q>=1, there exists r(q)<1 such that for p>r(q), the number of points in large boxes which belongs to the infinite cluster has a normal central limit behaviour under the random cluster measure phi_{p,q} on Z^d, d>=2.…

概率论 · 数学 2007-05-23 Olivier Garet

Non-local and non-convex energies represent fundamental interacting effects regulating the complex behavior of many systems in biophysics and materials science. We study one dimensional, prototypical schemes able to represent the behavior…

统计力学 · 物理学 2022-12-08 Andrea Cannizzo , Luca Bellino , Giuseppe Florio , Giuseppe Puglisi , Stefano Giordano

In this paper we study the macroscopic behavior of the inertial spin (IS) model. This model has been recently proposed to describe the collective dynamics of flocks of birds, and its main feature is the presence of an auxiliary dynamical…

数学物理 · 物理学 2022-12-22 Dario Benedetto , Paolo Buttà , Emanuele Caglioti

We study Linear Response Theory and Entropic Fluctuations of finite dimensional non-equilibrium repeated interaction systems (RIS). More precisely, in a situation where the temperatures of the probes can take a finite number of different…

数学物理 · 物理学 2020-10-28 J. F. Bougron , L. Bruneau

A thermodynamic system of non-interacting quantum particles changes its statistical distribution formulas if there is a universal limitation for the size of energetic quantum leaps (magnitude of quantum leaps smaller than Planck energy). By…

广义相对论与量子宇宙学 · 物理学 2015-03-17 Rainer Collier

We consider a general class of nonlinear diffusive models with bulk dissipation and boundary driving, and derive its hydrodynamic description in the large size limit. Both the average macroscopic behavior and the fluctuating properties of…

统计力学 · 物理学 2013-10-29 A. Prados , A. Lasanta , Pablo I. Hurtado

We study a particular type of subcritical Galton--Watson trees, which are called non-generic trees in the physics community. In contrast with the critical or supercritical case, it is known that condensation appears in certain large…

概率论 · 数学 2018-02-19 Igor Kortchemski

Universality of classical thermodynamics rests on the central limit theorem, due to which, measurements of thermal fluctuations are unable to reveal detailed information regarding the microscopic structure of a macroscopic body. When small…

量子物理 · 物理学 2024-02-28 Lucas Chibebe Céleri , Łukasz Rudnicki

Spin systems are fundamental models of statistical physics that provide insight into collective behavior across scientific domains. Their interest to computer science stems in part from the deep connection between the phase transitions they…

数学物理 · 物理学 2025-04-28 Jacob Calvert , Shunhao Oh , Dana Randall

We analyze the dynamics of moderate fluctuations for macroscopic observables of the random field Curie Weiss model (i.e., standard Curie-Weiss model embedded in a site dependent, i.i.d. random environment). We obtain path space large…

概率论 · 数学 2018-03-13 Francesca Collet , Richard C. Kraaij

The 3D Ising-like system in the external field is described using the non-perturbative collective variables method. The universal as well as nonuniversal system characteristics are obtained within the framework of this approach. The…

高能物理 - 理论 · 物理学 2007-05-23 M. P. Kozlovskii , O. O. Prytula