Mayer and Virial Series at Low Temperature |
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Authors: | Sabine Jansen |
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Institution: | (1) Weierstrass Institute for Applied Analysis and Stochastics, Leibniz Institute in Forschungsverbund Berlin e.V., Mohrenstr. 39, 10117 Berlin, Germany |
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Abstract: | We analyze the Mayer and virial series (pressure as a function of the activity resp. the density) for a classical system of
particles in continuous configuration space at low temperature. Particles interact via a finite range potential with an attractive
tail. We propose physical interpretations of the Mayer and virial series’ radii of convergence, valid independently of the
question of phase transition: the Mayer radius corresponds to a fast increase from very small to finite density, and the virial
radius corresponds to a cross-over from monatomic to polyatomic gas. Our results are consistent with the Lee-Yang theorem
for lattice gases and with the continuum Widom-Rowlinson model. |
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Keywords: | |
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