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We prove an integral representation result for a class of variational functionals appearing in the framework of hierarchical systems of structured deformations via a global method for relaxation. Some applications to specific relaxation…

Analysis of PDEs · Mathematics 2024-03-05 Ana Cristina Barroso , José Matias , Elvira Zappale

We review the inherent structure thermodynamical formalism and the formulation of an equation of state for liquids in equilibrium based on the (volume) derivatives of the statistical properties of the potential energy surface. We also show…

Soft Condensed Matter · Physics 2009-11-07 S. Mossa , E. La Nave , P. Tartaglia , F. Sciortino

We present the temperature dependence of alpha-relaxation times of 13 glass formers determined from broadband dielectric spectroscopy, also including data from aging measurements. The data sets partly cover relaxation-time ranges of up to…

Soft Condensed Matter · Physics 2010-06-03 P. Lunkenheimer , S. Kastner , M. K öhler , A. Loidl

We provide the first quantitative result of convergence to equilibrium in the context of the spatially homogeneous Boltzmann-Fermi-Dirac equation associated to hard potentials interactions under angular cut-off assumption, providing an…

Analysis of PDEs · Mathematics 2024-02-13 Thomas Borsoni , Bertrand Lods

We study the relaxation time required for the alignment between the spin of a finite-mass quark/antiquark and the thermal vorticity, at finite temperature and baryon chemical potential, in the context of relativistic heavy-ion collisions.…

High Energy Physics - Phenomenology · Physics 2020-09-23 Alejandro Ayala , David de la Cruz , L. A. Hernández , Jordi Salinas

We show the evolution of a gluon plasma towards equilibrium starting at some early moment when the momentum distribution in the central region is momentaneously isotropic. Using HIJING results for Au+Au collision as initial input, we…

High Energy Physics - Phenomenology · Physics 2009-10-28 S. M. H. Wong

We investigate the relaxational dynamics of the order parameter of chiral symmetry breaking, the sigma mean-field, with a heat bath consisting of quarks and antiquarks. A semiclassical stochastic Langevin equation of motion is obtained from…

Nuclear Theory · Physics 2015-05-28 Marlene Nahrgang , Stefan Leupold , Marcus Bleicher

The linear and quadratic interactions of an impurity vibrational mode coupled with a heat bath are investigated with a non-Markovian equation of motion for the reduced density matrix valid for the initial, intermediate and kinetic stages of…

Quantum Physics · Physics 2008-02-03 D. Kilin , M. Schreiber

The equivalence of three different definitions of viscosity solutions for the integro-differential equation with the L{\'e}vy operator is shown in this paper. The key is Lemma 2.1, in which we construct a sequence of the approximating test…

Analysis of PDEs · Mathematics 2010-12-15 M. Arisawa

We study the linear relaxation Boltzmann equation, a simple semiclassical kinetic model. We provide a resolvent estimate for an associated non-selfadjoint operator as well as an estimate on the return to equilibrium. This is done using a…

Mathematical Physics · Physics 2015-05-05 Virgile Robbe

An integral relation is derived from the Fokker-Planck equation which connects the steady-state probability currents with the dynamics of relaxation on short timescales in the limit of small perturbation fields. As a consequence of this…

Statistical Mechanics · Physics 2024-03-26 Andrea Auconi

In this note, we propose the first mathematical derivation of a macroscopic Baer-Nunziato type system for compressible two-phase flows allowing two pressure state laws depending on the different phases. By doing so, we extend the results…

Analysis of PDEs · Mathematics 2020-12-14 Didier Bresch , Cosmin Burtea , Frédéric Lagoutière

A multiscale asymptotic homogenization method for periodic microstructured materials in presence of thermoelasticity with periodic spatially dependent one relaxation time is introduced. The asymptotic expansions of the micro-displacement…

Materials Science · Physics 2021-04-12 Deison Préve , Andrea Bacigalupo , Marco Paggi

We study the relaxation of multiple integrals of the calculus of variations, where the integrands are nonconvex with convex effective domain and can take the value \infty. We use local techniques based on measure arguments to prove integral…

Analysis of PDEs · Mathematics 2012-07-25 Omar Anza Hafsa , Jean Philippe Mandallena

We study how a Luttinger liquid of spinless particles in one dimension approaches thermal equilibrium. Full equilibration requires processes of backscattering of excitations which occur at energies of order of the bandwidth. Such processes…

Strongly Correlated Electrons · Physics 2012-01-25 K. A. Matveev , A. V. Andreev

New inelastic X-ray scattering experiments have been performed in liquid lithium at two different temperatures: T=475 K (slightly above the melting point) and 600 K. Taking advantage of the absence of any kinematical restriction and…

Disordered Systems and Neural Networks · Physics 2009-10-31 T. Scopigno , U. Balucani , G. Ruocco , F. Sette

We provide an overview of our numerical and analytical studies of isolated interacting quantum systems that are quenched out of equilibrium instantaneously. We describe the relaxation process to a new equilibrium and obtain lower bounds for…

Statistical Mechanics · Physics 2016-04-04 E. J. Torres-Herrera , Davida Kollmar , Lea F. Santos

According to contemporary views, equilibrium constant is relevant only to true thermodynamic equilibria in isolated systems with one chemical reaction. The paper presents a novel formula that ties-up equilibrium constant and chemical system…

Chemical Physics · Physics 2008-02-11 B. Zilbergleyt

We present a general framework for the approximation of systems of hyperbolic balance laws. The novelty of the analysis lies in the construction of suitable relaxation systems and the derivation of a delicate estimate on the relative…

Analysis of PDEs · Mathematics 2014-08-06 Alexey Miroshnikov , Konstantina Trivisa

Alchemical free energy calculations via molecular dynamics have been widely used to obtain thermodynamic properties related to protein-ligand binding and solute-solvent interactions. Although soft-core modeling is the most common approach,…

Computational Physics · Physics 2023-01-03 Gabriela B. Correa , Jessica C. S. L. Maciel , Frederico W. Tavares , Charlles R. A. Abreu