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Jarzynski equality for the Jepsen gas

I. Bena1, C. Van den Broeck2 and R. Kawai3

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We illustrate the Jarzynski equality on the exactly solvable model of an ideal gas in uniform expansion or compression. The analytical results for the probability density P(W) of the work W performed by the gas are compared with the results of molecular dynamics simulations for a two-dimensional dilute gas of hard spheres, a prototype for a real, slightly non-ideal gas.


PACS

02.50.-r Probability theory, stochastic processes, and statistics

05.20.-y Classical statistical mechanics

05.70.Ln Nonequilibrium and irreversible thermodynamics

Subjects

Computational physics

Statistical physics and nonlinear systems

Dates

Issue 6 (September 2005)

Received 13 June 2005, accepted for publication 19 July 2005, in final form 19 July 2005

Published 10 August 2005



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