FRW and Bianchi type I cosmology of f-essence

Abstract

F-essence is a generalization of the usual Dirac model with the nonstandard kinetic term. In this paper, we introduce a new model of spinor cosmology containing both Ricci scalar and the non minimally coupled spinor fields in its action. We have investigated the cosmology with both isotropy and anisotropy, where the equations of motion of FRW and Bianchi type-I spacetimes have been derived and solved numerically. Finally the quantization of these models through Wheeler-De Witt (WD) wave function has been discussed.Comment: 8 pages, accepted for publication in 'Astrophysics and Space Science

Analytic Charged Spherically Symmetric Solution inf(T) Gravity

“…(36) we see that the exact solution consists of a diagonal solution given by ðh j Þ 3 which is mainly the square root of the metric of Reissner Nordström spacetime and two local Lorentz transformations, i.e., ðà i j Þ 1 and ðà i j Þ 2 . The local Lorentz transformation ðà i j Þ 1 is the three Euler angles under the constraints:…”

A Cosmology Governed by a Fractional Differential Equation and the Generalized Kilbas-Saigo-Mittag-Leffler Function

“…The unification of dark matter and dark energy is both natural and attractive and the class of both energies unification models is often referred to as quartessence and is motivated from string theory (see [28] and references therein). These models were explored in many interesting research papers and their cosmological and astrophysical outcomes are inspiring [29][30][31][32][33][34][35][36][37][38][39][40][41]. A fractional differential cosmology which takes into account the dark matter-dark energy unification will be addressed in a future work.…”

Correspondence of F-Essence with Holographic and New Agegraphic Dark Energy Models

“…The purpose of the present work is to investigate the correspondence between F -essence dark energy model and other two important dark energy candidates namely holographic dark energy and new agegraphic dark energy. Jamil et al [24,25] have investigated the reconstructions of F -essence and modified Chaplygin gas and also in Bianchi type I model in F -essence. Tsyba et al [26] have reconstructed the different F -essence models with fermionic pure and generalized Chaplygin gas models.…”