engleski

Thermodynamics of Dark Energy

Thermodynamic properties of dark energy are discussed assuming that dark energy is described in terms of a selfinteracting complex scalar. We first show that, under certain assumptions, selfinteracting complex scalar field theories are equivalent to purely kinetic k-essence models. Then we analyze the thermal properties of k-essence and in particular we show that dark-energy in the phantom regime does not necessarily yield negative entropy.

thermodynamics ; dark energy

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