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Related papers: Holographic kinetic k-essence model

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We present a dilatonic description of the holographic dark energy by connecting the holographic dark energy density with the dilaton scalar field energy density in a flat Friedmann-Robertson-Walker universe. We show that this model can…

General Relativity and Quantum Cosmology · Physics 2011-03-03 Alberto Rozas-Fernandez

We propose an holographic $k$-essence and dilaton models of dark energy. The correspondence between the $k$-essence and dilaton energy densities with the holographic density, allows the reconstruction of the potential and the fields for the…

High Energy Physics - Theory · Physics 2010-01-28 L. N. Granda , A. Oliveros

The holographic dark energy model is an attempt for probing the nature of dark energy within the framework of quantum gravity. The dimensionless parameter $c$ determines the main property of the holographic dark energy. With the choice of…

Astrophysics · Physics 2008-11-26 Xin Zhang

In this paper we consider a correspondence between the holographic dark energy density and tachyon energy density in FRW universe. Then we reconstruct the potential and the dynamics of the tachyon field which describe tachyon cosmology.

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

In this paper a connection between the holographic dark energy model and the $f(R)$ theory is established. We treat the $f(R)$ theory as an effective description for the holographic dark energy and reconstruct the function $f(R)$ with the…

Astrophysics · Physics 2008-11-26 Xing Wu , Zong-Hong Zhu

A ghost dark energy model has been recently put forward to explain the current accelerated expansion of the Universe. In this model, the energy density of ghost dark energy, which comes from the Veneziano ghost of QCD, is proportional to…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-28 Alberto Rozas-Fernandez

We make a scalar representation of interactive models with cold dark matter and modified holographic Ricci dark energy through unified models driven by scalar fields with non-canonical kinetic term. These models are applications of the…

General Relativity and Quantum Cosmology · Physics 2017-02-01 Mónica Forte

We study the model for holographic dark energy in a spatially closed universe, generalizing the proposal in hep-th/0403127 for a flat universe. We provide independent arguments for the choice of the parameter $c=1$ in the holographic dark…

Astrophysics · Physics 2009-11-10 Qing-Guo Huang , Miao Li

Introducing a new infrared cut-off for the holographic dark-energy, we study the correspondence between the quintessence, tachyon, K-essence and dilaton energy density with this holographic dark energy density in the flat FRW universe. This…

General Relativity and Quantum Cosmology · Physics 2009-02-05 L. N. Granda , A. Oliveros

The holographic principle is applied to a flat Friedmann-Robertson-Walker space-time dominated by dark energy when this is due to the presence of a k-essence scalar field, both for dark energy and phantom scenarios. In this framework, a…

General Relativity and Quantum Cosmology · Physics 2014-10-24 Alberto Rozas-Fernández

An holographic f(R) gravity model of dark energy is proposed. The correspondence between the f(R) geometrical effective energy density with the holographic density, allows the reconstruction of the f(R) gravity in flat FRW background in the…

High Energy Physics - Theory · Physics 2008-12-10 L. N. Granda

We investigate the corresponding relation between $f(R)$ gravity and holographic dark energy. We introduce a kind of energy density from $f(R)$ which has role of the same as holographic dark energy. We obtain the differential equation that…

General Physics · Physics 2014-01-20 Kh. Saaidi , A. Aghamohammadi

We propose an holographic quintessence and tachyon models of dark energy. The correspondence between the quintessence and tachyon energy densities with the holographic density, allows the reconstruction of the potentials and the dynamics…

General Relativity and Quantum Cosmology · Physics 2009-11-19 L. N. Granda

In this article,the dynamics and potential of two different scalar field models is presented in a at Friedmann-Lemaitre-Robertson-Walker(FLRW) universe. One of those models is obtained from the corresponding relation between holographic…

General Physics · Physics 2014-07-10 A. Aghamohammadi

Many theoretical attempts toward reconstructing the potential and dynamics of the scalar fields have been done in the literature by establishing a connection between holographic/agegraphic energy density and a scalar field model of dark…

General Physics · Physics 2011-11-14 Ahmad Sheykhi

We try to study the corresponding relation between f(T ) gravity and holographic dark energy (HDE). A kind of energy density from f(T) is introduced which has the same role as the HDE density. A f(T ) model according to the the HDE model is…

General Physics · Physics 2014-04-22 A. Aghamohammadi

In this paper we consider a correspondence between the holographic dark energy density and Chaplygin gas energy density in FRW universe. Then we reconstruct the potential and the dynamics of the scalar field which describe the Chaplygin…

High Energy Physics - Theory · Physics 2010-10-27 M R Setare

In this paper we consider the holographic model of interacting dark energy in non-flat universe. With the choice of $c\leq 0.84$, the interacting holographic dark energy can be described by a phantom scalar field. Then we show this…

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

K-essence is a minimally-coupled scalar field whose Lagrangian density $\mathcal{L}$ is a function of the field value $\phi$ and the kinetic energy $X=\frac{1}{2}\partial_\mu\phi\partial^\mu\phi$. In the thawing scenario, the scalar field…

Cosmology and Nongalactic Astrophysics · Physics 2021-12-01 Zhiqi Huang

We investigate the corresponding relation between $f(R)$ gravity and an interacting holographic dark energy. By obtaining conditions needed for some observational evidence such as, positive acceleration expansion of universe, crossing the…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-04 Kh. Saaidi , A. Aghamohammadi
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