Super in ation mechanism and dark energy from a cosmological entropy perspective

Authors : Ali İhsan KESKİN

Pages : 116-124

View : 17 | Download : 4

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :  Various approaches are developed that provide a unification of the early inflationary epoch of the universe and dark energy insert ignore into journalissuearticles values(cosmic accelerating expansion case);. In one respect, we express this unification in a universal thermodynamic framework within the context of F insert ignore into journalissuearticles values( T , T G ); ` role=`presentation`> F insert ignore into journalissuearticles values( T , T G ); F insert ignore into journalissuearticles values( T , T G ); F\leftinsert ignore into journalissuearticles values( T,T_{G} \right); gravity, where T ` role=`presentation`> T T T represents the torsion invariant and T G ` role=`presentation`> T G T G T_{G} is the teleparallel equivalent of the Gauss--Bonnet term. For a Friedmann-Robertson-Walker universe model bounded by the dynamical apparent horizon, we explore the generalized second law of gravitational thermodynamics insert ignore into journalissuearticles values(GSLT);. Finally, we discuss the super inflation mechanism, the deceleration case insert ignore into journalissuearticles values(radiation and dust regions);, and the late time cosmic acceleration of the universe into the validity of the GSLT that we obtain.
Keywords : F T, T G, gravity, thermodynamics, in ation, dark energy