Kantowski–Sachs modified holographic Ricci dark energy model in Saez–Ballester theory of gravitation

Abstract

We have considered Kantowski–Sachs space–time in the presence of matter and anisotropic modified holographic Ricci dark energy components in the scalar–tensor theory of gravitation formulated by Saez and Ballester (Phys. Lett. A, 113, 467, 1986) and derived the field equations of the theory. We have used (i) hybrid expansion law proposed by Akarsu et al. (JCAP, 022, 2014), (ii) a relation between metric potentials, and (iii) modified holographic Ricci dark energy density given by Chen and Jing (Phys. Lett. B, 679, 144, 2009) to obtain an exact solution of the field equations that describes a Kantowski–Sachs holographic modified Ricci dark energy universe in this theory. Physical and kinematical parameters are also computed and their physical behavior is discussed.

Cosmology of a generalized version of holographic dark energy and reconstruction of different scalar field models

“…A quintessence model was demonstrated in [104], where a smooth transition from decelerated to an accelerated expansion of the Universe was presented in an anisotropic Bianchi-type Universe filled with dark matter and modified holographic RDE. An exact solution of the field equations describing a Kantowski-Sachs holographic modified RDE filled Universe was derived in [105] in the framework of a scalar-tensor theory. In the framework of Saez-Ballester scalar tensor theory, Reddy [106] investigated modified holographic RDE in a Universe resembling Bianchi type-V.…”