J 2013

On the conditions of validity of the Boltzmann equation and Boltzmann H-theorem

CREMASCHINI, Claudio, Marco TESSAROTTO and Massimo TESSAROTTO

Basic information

Original name

On the conditions of validity of the Boltzmann equation and Boltzmann H-theorem

Name (in English)

On the conditions of validity of the Boltzmann equation and Boltzmann H-theorem

Authors

CREMASCHINI, Claudio, Marco TESSAROTTO and Massimo TESSAROTTO

Edition

European Physical Journal Plus, DE - Spolková republika Německo, 2013, 2190-5444

Other information

Type of outcome

Článek v odborném periodiku

Field of Study

10300 1.3 Physical sciences

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Organization unit

Institute of physics in Opava

UT WoS

000316230200008

Keywords in English

Statistical mechanics; Information theory

Tags

Tags

International impact, Reviewed
Změněno: 29/3/2021 10:05, Mgr. Pavlína Jalůvková

Abstract

V originále

In this paper the problem is posed of the formulation of the so-called ab initio approach to the statistical description of the Boltzmann-Sinai N-body classical dynamical system (CDS) formed by identical smooth hard spheres. This amounts to introducing asuitably generalized version of the axioms of Classical Statistical Mechanics. The latter involve a proper definition of the functional setting for the N-body probability density function (PDF), so that it includes also the case of the deterministic N-body PDF. In connection with this issue, a further development concerns the introduction of modified collision boundary conditions which differ from the usual ones adopted in previous literature. Both features are proved to be consistent with the validityof exact H-theorems for the N-body and 1-body PDFs, respectively. Consequences of the axiomatic approach which concern the conditions of validity of the Boltzmann kinetic equation and the Boltzmann H-theorem are investigated. In particul