Phantom thermodynamics

  title={Phantom thermodynamics},
  author={P. F. Gonz'alez-D'iaz and C. L. Siguenza},
This paper deals with the thermodynamic properties of a phantom field in a flat Friedmann-Robertson-Walker universe. General expressions for the temperature and entropy of a general dark-energy field with equation of state $p=\omega\rho$ are derived from which we have deduced that, whereas the temperature of a cosmic phantom fluid ($\omega<-1$) is definite negative, its entropy is always positive. We interpret that result in terms of the intrinsic quantum nature of the phantom field and apply… CONTINUE READING
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