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In the first part we present a review of our results concerning the weakly nonlinear regime of the mirror instability in the framework of an asymptotic model. This model belongs to the class of gradient type systems for which the free…

等离子体物理 · 物理学 2015-02-02 E. A. Kuznetsov , T. Passot , V. P. Ruban , P. L. Sulem

We show that, in general, any complex weakly nonlinear highly multimode system can reach thermodynamic equilibrium that is characterized by a unique temperature and chemical potential. The conditions leading to either positive or negative…

We investigate Turing instability and pattern formation in two-dimensional domains for two reaction-diffusion models, obtained as diffusive limits of kinetic equations for mixtures of monatomic and polyatomic gases. The first model is of…

数学物理 · 物理学 2026-02-23 Stefano Boccelli , Giorgio Martalò , Romina Travaglini

Two granular gases separated by an adiabatic piston and initially in the same macroscopic state are considered. It is found that a phase transition with an spontaneous symmetry breaking occurs. When the mass of the piston is increased…

统计力学 · 物理学 2013-05-06 J. Javier Brey , Nagi Khalil

We study analytically and numerically the stability of the standing waves for a nonlinear Schr\"odinger equation with a point defect and a power type nonlinearity. A main difficulty is to compute the number of negative eigenvalues of the…

斑图形成与孤子 · 物理学 2015-05-13 Stefan Le-Coz , Reika Fukuizumi , Gadi Fibich , Baruch Ksherim , Yonatan Sivan

Quantum thermodynamics with open systems is often based on the quantum optical weak-coupling master equation or on operational repeated interaction models, whereas early works on thermalisation and on decoherence theory were mostly…

量子物理 · 物理学 2025-06-27 Michael Gaida , Giulio Gasbarri , Stefan Nimmrichter

A class of chemical reaction networks is described with the property that each positive equilibrium is locally asymptotically stable relative to its stoichiometry class, an invariant subspace on which it lies. The reaction systems treated…

动力系统 · 数学 2013-04-11 Pete Donnell , Murad Banaji

Matrix stiffness expressions are derived for the particle movements in an assembly of rigid granules having compliant contacts. The derivations include stiffness terms that arise from the particle shapes at their contacts. These geometric…

软凝聚态物质 · 物理学 2019-01-23 Matthew R. Kuhn , Ching S. Chang

We investigate the formation of a two-dimensional quasicrystal in a monodisperse system, using molecular dynamics simulations of hard sphere particles interacting via a two-dimensional square-well potential. We find that more than one…

软凝聚态物质 · 物理学 2009-10-31 A. Skibinsky , S. V. Buldyrev , A. Scala , S. Havlin , H. E. Stanley

Kinetics of collision-sticking processes between vapor molecules and molecular clusters of low volatile compounds facilitates the initial steps of atmospheric clustering. Conventional theoretical models are quite inaccurate due to the…

A major obstacle for the experimental realization of a supersolid phase with cold atomic gases in an optical lattice is the weakness of the nearest-neighbor interactions achievable via magnetic dipole-dipole interactions. In this letter, we…

量子气体 · 物理学 2011-09-09 Adam Bühler , Hans Peter Büchler

Proceeded from the gravitation equations proposed by one of authors it was argued in a previous paper that there can exist supermassive compact configurations of degenerated Fermi-gas without events horizon. In the present paper we consider…

天体物理学 · 物理学 2009-11-13 L. Verozub , A. Kochetov

We study in the framework of the Schrodinger equation the effect of intermolecular interactions on the tunneling racemization of the active molecule. The active molecule is assumed as a two-level system and the left-right isomerism is…

量子物理 · 物理学 2009-10-22 M. Cattani , J. M. F. Bassalo

The cubic nonlinear Schr\"odinger equation with repulsive nonlinearity and an elliptic function potential models a quasi-one-dimensional repulsive dilute gas Bose-Einstein condensate trapped in a standing light wave. New families of…

凝聚态物理 · 物理学 2009-10-31 J. C. Bronski , L. D. Carr , B. Deconinck , J. N. Kutz , K. Promislow

The stability properties of models of spontaneous mirror symmetry breaking in chemistry are characterized algebraically. The models considered here all derive either from the Frank model or from autocatalysis with limited…

种群与进化 · 定量生物学 2008-11-20 Josep M. Ribo , David Hochberg

We examine the modulational and parametric instabilities arising in a non-autonomous, discrete nonlinear Schr{\"o}dinger equation setting. The principal motivation for our study stems from the dynamics of Bose-Einstein condensates trapped…

软凝聚态物质 · 物理学 2015-06-24 Z. Rapti , P. G. Kevrekidis , A. Smerzi , A. R. Bishop

Realistic equations of state valid in the whole state space of a multi-component mixture should satisfy at least three important constraints: (i) The Gibbs phase rule holds. (ii) At low densities, one can deduce a virial equation of state…

统计力学 · 物理学 2013-08-01 Arnold Neumaier

A relativistic mean-field model of nuclear matter with arbitrary proton fraction is studied at finite temperature. An analysis is performed of the liquid-gas phase transition in a system with two conserved charges (baryon number and…

核理论 · 物理学 2008-11-26 Horst Mueller , Brian D. Serot

One of the most remarkable results to emerge from heavy-ion collisions over the past two decades is the striking regularity shown by particle yields at all energies. This has led to several very successful proposals describing particle…

高能物理 - 唯象学 · 物理学 2011-05-05 J. Cleymans , H. Oeschler , K. Redlich , S. Wheaton

A basic model for describing plasma dynamics is given by the Euler-Maxwell system, in which compressible ion and electron fluids interact with their own self-consistent electromagnetic field. In this paper we consider the "one-fluid"…

偏微分方程分析 · 数学 2017-05-24 Yu Deng , Alexandru D. Ionescu , Benoit Pausader