Thermodynamics of Lemaitre-Tolman-Bondi Model

Details Thermodynamics of Lemaitre-Tolman-Bondi Model Thermodynamics of Lemaitre-Tolman-Bondi Model

2010-06-13

arxiv.org/abs/1006.2519v1

Gen.Rel.Grav.43:1827-1836,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages

Scientific paper

10.1007/s10714-011-1160-3

Here we consider our universe as inhomogeneous spherically symmetric Lemaitre-Tolman-Bondi Model and analyze the thermodynamics of this model of the universe. The trapping horizon is calculated and is found to coincide with the apparent horizon. The Einstein field equations are shown to be equivalent with the unified first law of thermodynamics. Finally assuming the first law of thermodynamics validity of the generalized second law of thermodynamics is examined at the apparent horizon for the perfect fluid and at the event horizon for holographic dark energy.

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