Specific heat and entropy of tachyon Fermi gas
  We consider an ideal Fermi gas of tachyons and derive a low temperature
expansion of its thermodynamical functions. The tachyonic specific heat is
linear dependent on temperature $C_V=\epsilon_Fk_FT$ and formally coincides
with the specific heat of electron gas if the tachyon Fermi energy is defined
as $\epsilon_F=\sqrt{k_F-m^2}$.
