Abstract : 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.
http://hal.in2p3.fr/in2p3-00337187
Contributor : Sandrine Guesnon <>
Submitted on : Friday, November 27, 2009 - 11:14:00 AM Last modification on : Tuesday, April 21, 2020 - 10:29:59 AM