Expansion dynamics of Lennard-Jones systems
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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Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_15393755_v77_n3_p_Ison |
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todo:paper_15393755_v77_n3_p_Ison2023-10-03T16:22:19Z Expansion dynamics of Lennard-Jones systems Ison, M.J. Gulminelli, F. Dorso, C.O. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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, M.J. Gulminelli, F. Dorso, C.O. 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. |
format |
JOUR |
author |
Ison, M.J. Gulminelli, F. Dorso, C.O. |
author_facet |
Ison, M.J. Gulminelli, F. Dorso, C.O. |
author_sort |
Ison, M.J. |
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 |
url |
http://hdl.handle.net/20.500.12110/paper_15393755_v77_n3_p_Ison |
work_keys_str_mv |
AT isonmj expansiondynamicsoflennardjonessystems AT gulminellif expansiondynamicsoflennardjonessystems AT dorsoco expansiondynamicsoflennardjonessystems |
_version_ |
1782030998261727232 |