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We study cosmological application of interacting holographic energy density in the framework of Brans-Dicke cosmology. We obtain the equation of state and the deceleration parameter of the holographic dark energy in a non-flat universe. As…

High Energy Physics - Theory · Physics 2009-11-05 Ahmad Sheykhi

In this paper, we investigate the new agegraphic dark energy model in the framework of Brans-Dicke theory which is a natural extension of the Einstein's general relativity. In this framework the form of the new agegraphic dark energy…

Cosmology and Nongalactic Astrophysics · Physics 2014-11-20 Xiang-Lai Liu , Xin Zhang

Motivated by a recent work of one of us [1], we extend it by using quantum (or entropy) corrected new agegraphic dark energy in the Brans-Dicke cosmology. The correction terms are motivated from the loop quantum gravity which is one of the…

High Energy Physics - Theory · Physics 2011-01-04 Kayoomars Karami , Ahmad Sheykhi , Mubasher Jamil , Z. Azarmi , M. M. Soltanzadeh

In a very recent paper, the current authors (arXiv:gr-qc/1609.01477) have proposed and analyzed in detail the logarithmic form of Brans-Dicke scalar field $\phi$ as $\phi \propto ln(\alpha+\beta a)$, where $\alpha$ and $\beta$ are positive…

General Relativity and Quantum Cosmology · Physics 2017-06-13 Pankaj Kumar , C. P. Singh

A so-called "agegraphic dark energy" was recently proposed to explain the dark energy-dominated universe. In this Letter, we generalize the agegraphic dark energy models to the universe with spatial curvature in the presence of interaction…

High Energy Physics - Theory · Physics 2009-10-16 Ahmad Sheykhi

We investigate the QCD ghost model of dark energy in the framework of Brans-Dicke cosmology. First, we study the non-interacting ghost dark energy in a flat Brans-Dicke theory. In this case we obtain the EoS and the deceleration parameters…

High Energy Physics - Theory · Physics 2015-05-28 Esmaeil Ebrahimi , Ahmad Sheykhi

Here we consider the entropy-corrected version of the new agegraphic dark energy model in the non-flat FRW universe. We derive the exact differential equation that determines the evolution of the entropy-corrected new agegraphic dark energy…

General Physics · Physics 2014-11-20 K. Karami , A. Sorouri

In this paper we study cosmological application of new agegraphic dark energy density in the $f(R)$ gravity framework. We employ the new agegraphic model of dark energy to obtain the equation of state for the new agegraphic energy density…

General Relativity and Quantum Cosmology · Physics 2010-04-30 M. R. Setare

In this paper we study cosmological application of holographic dark energy density in the Brans-Dicke framework. We employ the holographic model of dark energy to obtain the equation of state for the holographic energy density in non-flat…

High Energy Physics - Theory · Physics 2008-11-26 M R Setare

In this paper we consider the new agegraphic model of interacting dark energy in non-flat universe. We show that the interacting agegraphic dark energy can be described by a phantom scalar field. Then we show this phantomic description of…

General Relativity and Quantum Cosmology · Physics 2015-05-13 M. R. Setare

Motivated by the recent work of one of us [1], we generalize this work to the case where the pressureless dark matter and the holographic dark energy do not conserve separately but interact with each other. We investigate the cosmological…

High Energy Physics - Theory · Physics 2011-04-14 Ahmad Sheykhi , Mubasher Jamil

We study a holographic dark energy model in the framework of Brans-Dicke (BD) theory with taking into account the interaction between dark matter and holographic dark energy. We use the recent observational data sets, namely SN Ia…

Cosmology and Nongalactic Astrophysics · Physics 2017-12-20 Ehsan Sadri , Babak Vakili

Motivated by the recent works of one of us [1,2] we study the holographic dark energy in Brans-Dicke gravity with the Granda-Oliveros cut-off proposed recently in literature. We find out that when the present model is combined with…

General Physics · Physics 2012-01-06 Mubasher Jamil , Kayoomars Karami , Ahmad Sheykhi , E. Kazemi , Z. Azarmi

We explore a spatially homogeneous and isotropic Friedmann-Robertson-Walker (FRW) universe which is filled with agegraphic dark energy (ADE) with mutual interaction with pressureless dark matter in the background of Brans-Dicke (BD) theory.…

General Relativity and Quantum Cosmology · Physics 2020-01-08 M. Abdollahi Zadeh , A. Sheykhi

Considering the power-law corrections to the black hole entropy, which appear in dealing with the entanglement of quantum fields inside and outside the horizon, the holographic energy density is modified accordingly. In this paper we study…

Cosmology and Nongalactic Astrophysics · Physics 2012-05-08 A. Sheykhi , K. Karami , Mubasher Jamil , E. Kazemi , M. Haddad

In this paper, we investigate the agegraphic dark energy (ADE) model by including the sign-changeable interaction between ADE and dark matter in non-flat universe. It is shown that the interaction induces an energy flow of which the…

Cosmology and Nongalactic Astrophysics · Physics 2016-05-04 Y. D. Xu

We study a cosmological implication of holographic dark energy in the Brans-Dicke gravity. We employ the holographic model of dark energy to obtain the equation of state for the holographic energy density in non-flat (closed) universe…

General Relativity and Quantum Cosmology · Physics 2010-11-22 M. R. Setare , Mubasher Jamil

In this study, we analyze the ghost dark energy model in Brans-Dicke cosmology in the framework of a flat Friedmann-Lemaitre-Robertson-Walker universe. We consider an interaction between ghost dark energy and dark matter with a…

General Relativity and Quantum Cosmology · Physics 2026-01-05 Kirti Mehta , Pankaj Kumar , N. Myrzakulov , S. H. Shekh

In the derivation of holographic dark energy density, the area law of the black hole entropy plays a crucial role. However, the entropy-area relation can be modified from the inclusion of quantum effects, motivated from the loop quantum…

General Physics · Physics 2012-03-12 Ahmad Sheykhi , Kayoomars Karami , Mubasher Jamil , E. Kazemi , M. Haddad

In this paper, we study the dynamics of non-interacting and interacting holographic dark energy models in the framework of Brans-Dicke theory. As system's infra-red cut-off we consider the future event horizon. The motivation of this work…

General Relativity and Quantum Cosmology · Physics 2017-06-22 Milan Srivastava , C. P. Singh
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