Expansion dynamics of Lennard-Jones systems

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The dynamics of the expansion of a Lennard-Jones system, initially confined at high density and subsequently expanding freely in a vacuum, is compared with an expanding statistical ensemble derived in the diluted quasi-ideal Boltzmann approximation. The description proves to be fairly accurate at pr...

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Detalles Bibliográficos
Autores principales:	Ison, Matías Julián, Dorso, Claudio Oscar
Publicado:	2008
Materias:	Boltzmann equation Statistical mechanics Vacuum Boltzmann approximation Lennard-Jones systems Molecular dynamics
Acceso en línea:	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v77_n3_p_Ison http://hdl.handle.net/20.500.12110/paper_15393755_v77_n3_p_Ison
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	paper:paper_15393755_v77_n3_p_Ison
record_format	dspace
spelling	paper:paper_15393755_v77_n3_p_Ison2025-07-30T18:56:16Z Expansion dynamics of Lennard-Jones systems Ison, Matías Julián Dorso, Claudio Oscar Boltzmann equation Statistical mechanics Vacuum Boltzmann approximation Lennard-Jones systems Molecular dynamics The dynamics of the expansion of a Lennard-Jones system, initially confined at high density and subsequently expanding freely in a vacuum, is compared with an expanding statistical ensemble derived in the diluted quasi-ideal Boltzmann approximation. The description proves to be fairly accurate at predicting average one-body global observables, but important deviations are observed in the configuration-space structure of the events. Possible implications for finite expanding physical systems are outlined. © 2008 The American Physical Society. Fil:Ison, M.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Dorso, C.O. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2008 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v77_n3_p_Ison http://hdl.handle.net/20.500.12110/paper_15393755_v77_n3_p_Ison
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Boltzmann equation Statistical mechanics Vacuum Boltzmann approximation Lennard-Jones systems Molecular dynamics
spellingShingle	Boltzmann equation Statistical mechanics Vacuum Boltzmann approximation Lennard-Jones systems Molecular dynamics Ison, Matías Julián Dorso, Claudio Oscar Expansion dynamics of Lennard-Jones systems
topic_facet	Boltzmann equation Statistical mechanics Vacuum Boltzmann approximation Lennard-Jones systems Molecular dynamics
description	The dynamics of the expansion of a Lennard-Jones system, initially confined at high density and subsequently expanding freely in a vacuum, is compared with an expanding statistical ensemble derived in the diluted quasi-ideal Boltzmann approximation. The description proves to be fairly accurate at predicting average one-body global observables, but important deviations are observed in the configuration-space structure of the events. Possible implications for finite expanding physical systems are outlined. © 2008 The American Physical Society.
author	Ison, Matías Julián Dorso, Claudio Oscar
author_facet	Ison, Matías Julián Dorso, Claudio Oscar
author_sort	Ison, Matías Julián
title	Expansion dynamics of Lennard-Jones systems
title_short	Expansion dynamics of Lennard-Jones systems
title_full	Expansion dynamics of Lennard-Jones systems
title_fullStr	Expansion dynamics of Lennard-Jones systems
title_full_unstemmed	Expansion dynamics of Lennard-Jones systems
title_sort	expansion dynamics of lennard-jones systems
publishDate	2008
url	https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15393755_v77_n3_p_Ison http://hdl.handle.net/20.500.12110/paper_15393755_v77_n3_p_Ison
work_keys_str_mv	AT isonmatiasjulian expansiondynamicsoflennardjonessystems AT dorsoclaudiooscar expansiondynamicsoflennardjonessystems
_version_	1840327160745689088

Expansion dynamics of Lennard-Jones systems

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