Stability of hot tachyon gas

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 $c_s=1/\sqrt{2}$ in non-relativistic gas (at low temperature), decreasing monotonously with the growth of temperature and attaining ultra-relativistic limit $c_s=1/$ at high temperature. The hot tachyon gas always satisfies the causality.

11 pages, 3 figures

References in corpus (5)

• Lorentz covariant statistical mechanics and thermodynamics of the relativistic ideal gas and preferred frame
• Acoustics of tachyon Fermi gas
• Relativistic ideal Fermi gas at zero temperature and preferred frame
• Tachyonic thermal excitations and causality
• Specific heat and entropy of tachyon Fermi gas

Cited by in corpus (1)

• Careful calculation of thermodynamical functions of tachyon gas