2010/06/13 by Subenoy Chakraborty, Nairwita Mazumder, Ritabrata Biswas
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Theoretical and Computational Physics #gr-qc
paper · pdf · doi:10.1007/s10714-011-1160-3
published as Gen.Rel.Grav.43:1827-1836,2011 · 8 pages
arxiv created 2010/06/13 · openalex publication_date 2011/03/04 · arxiv updated 2011/05/09 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
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.