English

G-corrected holographic dark energy model

General Relativity and Quantum Cosmology 2015-06-15 v2

Abstract

Here we investigate the holographic dark energy model in the framework of FRW cosmology where the Newtonian gravitational constant,GG, is varying with cosmic time. Using the complementary astronomical data which support the time dependency of GG, the evolutionary treatment of EoS parameter and energy density of dark energy model are calculated in the presence of time variation of GG. It has been shown that in this case, the phantom regime can be achieved at the present time. We also calculate the evolution of GG- corrected deceleration parameter for holographic dark energy model and show that the dependency of GG on the comic time can influence on the transition epoch from decelerated expansion to the accelerated phase. Finally we perform the statefinder analysis for GG- corrected holographic model and show that this model has a shorter distance from the observational point in srs-r plane compare with original holographic dark energy model.

Keywords

Cite

@article{arxiv.1302.3445,
  title  = {G-corrected holographic dark energy model},
  author = {M. Malekjani and M. Honari-Jafarpour},
  journal= {arXiv preprint arXiv:1302.3445},
  year   = {2015}
}

Comments

arXiv admin note: text overlap with arXiv:1209.1089

R2 v1 2026-06-21T23:26:14.363Z