Generalized Second Law of Thermodynamics in $f(T,T_{G})$ gravity

Understand

An equilibrium picture of thermodynamics is discussed at the apparent horizon of FRW universe in $f(T,T_G)$ gravity, where $T$ represents the torsion invariant and $T_G$ is the teleparallel equivalent of the Gauss-Bonnet term.

• It is found that one can translate the Friedmann equations to the standard form of first law of thermodynamics.
• We discuss GSLT in the locality of assumption that temperature of matter inside the horizon is similar to that of horizon.
• Finally, we consider particular models in this theory and generate constraints on the coupling parameter for the validity of GSLT in terms of recent cosmic parameters and power law solutions.