Thermodynamics of cosmological horizons in $f(T)$ gravity

Abstract

We explore thermodynamics of the apparent horizon in $f(T)$ gravity with both equilibrium and non-equilibrium descriptions. We find the same dual equilibrium/non-equilibrium formulation for $f(T)$ as for $f(R)$ gravity. In particular, we show that the second law of thermodynamics can be satisfied for the universe with the same temperature of the outside and inside the apparent horizon.

18 pages, no figure, version accepted for publication in JCAP

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• Geodesic Deviation Equation in $f(T)$ gravity
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