Some notes about the density of states for a negative pressure matter

Abstract

The main goal of this paper is deriving Density of states $g(\epsilon )$ (degeneracy function) per volume for an equation of state (EOS) $p=-\rho$ (we called it dark energy(DE)).We have concluded that thermodynamic quantities such as pressure and energy density are simple functions of temperature, fugacity, curvature and mass of Bosons. Our work has been expressed the origin of some claims about the negativity of the entropy for the scalar fields models of DE.

12 pages,Major revision,Typos fixed,References added,it has now been accepted for publication in International Journal of Modern Physics E. It was accepted on May 31, 2010

References in corpus (10)

• Thermodynamics of dark energy interacting with dark matter and radiation
• Bulk-Brane Interaction and Holographic Dark Energy
• Generalized Second Law of Thermodynamics in Quintom Dominated Universe
• Correspondence between Holographic and Gauss-Bonnet dark energy models
• Thermodynamical Interpretation of the Interacting Holographic Dark Energy Model in a non-flat Universe
• Stochastic Gravity: A Primer with Applications
• Thermodynamical properties of dark energy
• Thermodynamics of viscous dark energy in an RSII braneworld
• Thermodynamics of k-essence
• Phase transition in Schwarzschild-de Sitter spacetime

Cited by in corpus (7)

• Bounce solutions in viscous fluid cosmology
• Two-fluid atmosphere from decelerating to accelerating FRW dark energy models
• Inhomogeneous viscous fluids in FRW universe and finite-future time singularities
• Inhomogeneous viscous fluids for inflation
• Fluid inflation with brane correction
• Inflation driven by q-de Sitter
• Coupled fluids model in FRW space-time