Rip Cosmological Models in Extended Symmetric Teleparallel Gravity

Abstract: In this work, we have investigated some rip cosmological models in an extended symmetric teleparallel gravity theory. We consider the form f(Q,T)=aQm+bTf(Q, T) = aQ^m+bT in the Einstein–Hilbert action and express the field equations and the dynamical parameters in terms of the non-metricity QQ. Three rip models such as Little Rip, Big Rip, and Pseudo Rip are presented, also the energy conditions and the cosmographic parameters are derived and analyzed for all these models.

astrophysicscondensed mattergeneral relativity and quantum cosmologyhigh energy physicsmathematical physicsclassical physicsgeneral physics

Audience: researchers in the topic

Theoretical physics seminar @ Tartu