Abstract
In this paper, we study the cosmological analysis of the modified holographic Ricci dark energy model and reconstruct different scalar field models in the context of Chern-Simons modified gravity. We investigate the deceleration parameter, which shows that the universe is in the accelerating expansion phase. The equation of state parameter in this case also favors the fact that dark energy is the dominant component of universe, which is responsible for the accelerated expansion. A number of scalar fields, such as quintessence, tachyon, K-essence, and dilaton models, are reconstructed using modified holographic Ricci dark energy model in the context of dynamical CS modified gravity. The quintessence and K-essence models represent exponentially increasing behaviors, while tachyon model shows decreasing behavior. Unfortunately, the dilaton model has no numerical solution for modified holographic Ricci dark energy model in the framework of dynamical Chern-Simons modified gravity.
Highlights
A large number of evidences have been provided in the favor of accelerated expansion of the universe by Type Ia supernovae [1, 2], Cosmic Microwave Background (CMB) [3], weak lensing [4], Large Scale Structures [5, 6], and integrated Sachs-Wolfe effect [7, 8]
We studied the correspondence between quintessence, Kessence, tachyon, and dilaton field models and holographic dark energy model
This work is devoted to study the cosmological analysis of modified holographic Ricci dark energy (MHRDE) model in the context of CS modified gravity
Summary
A large number of evidences have been provided in the favor of accelerated expansion of the universe by Type Ia supernovae [1, 2], Cosmic Microwave Background (CMB) [3], weak lensing [4], Large Scale Structures [5, 6], and integrated Sachs-Wolfe effect [7, 8]. To understand the nature of universe, a new DE model has been constructed in the context of quantum gravity on holographic principle named holographic dark energy (HDE) model [19,20,21,22]. Gao et al [23], motivated by the holographic principle, introduced a new DE model, which was inversely proportional to Ricci scalar curvature called Ricci dark energy (RDE) Their investigation shows that RDE model solves the causality problem and the evolution of density perturbations of matter power spectra and CMB anisotropy is not much affected by such modification. Granda and Oliveros [24] introduced a new infrared cut-off for HDE model and reconstructed the potentials and fields for different DE models such as the quintessence, tachyon, K-essence, and dilaton for FRW universe.
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