Stability of hot tachyon gas

2011/08/24 by Ernst Trojan, Trojan, Ernst
Physics and Astronomy · #Cosmology and Nongalactic Astrophysics (astro-ph.CO) #FOS: Physical sciences #Statistical Mechanics (cond-mat.stat-mech) #astro-ph.CO #cond-mat.stat-mech

paper · pdf · doi:10.48550/arxiv.1108.4752

11 pages, 3 figures

arxiv created 2011/08/24 · arxiv updated 2011/08/25

Abstract

We consider a tachyon gas that obeys Maxwell-Boltzmann statistics. The sound speed is always subluminal and it tends to the limiting minimum value c_s=1/√(2) in non-relativistic gas (at low temperature), decreasing monotonously with the growth of temperature and attaining ultra-relativistic limit c_s=1/% √(3) at high temperature. The hot tachyon gas always satisfies the causality.

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