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Generalized second law of thermodynamics for FRW cosmology with power-law entropy correction
Authors:Ujjal Debnath  Surajit Chattopadhyay  Ibrar Hussain  Mubasher Jamil and Ratbay Myrzakulov
Abstract:In this work, we have considered the power-law correction of entropy on the horizon. If the flat FRW Universe is filled with the n components fluid with interactions, the GSL of thermodynamics for apparent and event horizons have been investigated for equilibrium and non-equilibrium cases. If we consider a small perturbation around the de Sitter spacetime, the general conditions of the validity of GSL have been found. Also if a phantom dominated Universe has a pole-like type scale factor, the validity of GSL has also been analyzed. Further we have obtained constraints on the power-law parameter α in the phantom and quintessence dominated regimes. Finally we obtain conditions under which GSL breaks down in a cosmological background.
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