Abstract
In the classical gas any two particles interact with the repulsive potential iff they both are situated in the fixed regionλ. Outsideλ they move freely. We prove that this dynamical system with respect to the Gibbs measure is metrically isomorphic to the classical ideal gas.
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Malyshev, V.A., Nickolaev, I.V. & Terlecky, Y.A. Temperature dynamics of the locally perturbed classical ideal gas. J Stat Phys 40, 133–146 (1985). https://doi.org/10.1007/BF01010529
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DOI: https://doi.org/10.1007/BF01010529