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Expansion dynamics of Lennard-Jones systems

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

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M.J. Ison, F. Gulminelli, C.O. Dorso. Expansion dynamics of Lennard-Jones systems. Physical Review E : Statistical, Nonlinear, and Soft Matter Physics, American Physical Society, 2008, 77, pp.031109. ⟨10.1103/PhysRevE.77.031109⟩. ⟨in2p3-00337187⟩



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