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Related papers: Holographic Dark Energy from a Modified GBIG Scena…

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We construct a holographic dark energy model with a non-minimally coupled scalar field on the brane where Gauss-Bonnet and Induced Gravity effects are taken into account. This model provides a wide parameter space with several interesting…

General Relativity and Quantum Cosmology · Physics 2010-04-30 Kourosh Nozari , Narges Rashidi

We construct a DGP-inspired braneworld model where induced gravity on the brane is modified in the spirit of $f(R)$ gravity and stringy effects are taken into account by incorporation of the Gauss-Bonnet term in the bulk action. We explore…

General Relativity and Quantum Cosmology · Physics 2009-09-28 Kourosh Nozari , Narges Rashidi

We present an holographic model of the Dvali-Gabadadze-Porrati scenario with a Gauss-Bonnet term in the bulk. We concentrate on the solution that generalises the normal Dvali-Gabadadze-Porrati branch. It is well known that this branch…

Cosmology and Nongalactic Astrophysics · Physics 2013-05-29 Mariam Bouhmadi-Lopez , Ahmed Errahmani , Taoufiq Ouali

In this paper, we present a model for the late-time evolution of the universe where a dark energy-dark matter interaction is invoked. Dark energy is modeled through an holographic Ricci dark energy component. The model is embedded within an…

General Relativity and Quantum Cosmology · Physics 2021-01-20 Moulay-Hicham Belkacemi , Zahra Bouabdallaoui , Mariam Bouhmadi-López , Ahmed Errahmani , Taoufik Ouali

We present a generalized version of holographic dark energy arguing that it must be considered in the maximally subspace of a cosmological model. In the context of brane cosmology it leads to a bulk holographic dark energy which transfers…

High Energy Physics - Theory · Physics 2008-11-26 E. N. Saridakis

We expand the study of generalized brane cosmologies by allowing for an $f(\tilde{\cal R})$ gravity term on the brane, with $\tilde{\cal R}$ the curvature scalar derived from the induced metric. We also include arbitrary matter components…

High Energy Physics - Theory · Physics 2010-10-22 Pantelis S. Apostolopoulos , Nikolaos Brouzakis , Nikolaos Tetradis

In this article we have studied a closed universe which a holographic energy on the brane whose energy density is described by $\rho (H) =3c^{2}H^{2}$ and we obtain an equation for the Hubble parameter, this equation gave us different…

General Relativity and Quantum Cosmology · Physics 2009-02-02 Samuel Lepe , Francisco Pena , Joel Saavedra

We study the thermodynamics of some cosmological models based on modified gravity, a braneworld with induced gravity and curvature effect. Dark energy component seems necessary if the models are to approach thermal equilibrium in the long…

General Relativity and Quantum Cosmology · Physics 2011-09-16 Ninfa Radicella , Diego Pavón

We apply bulk holographic dark energy in general braneworld models with a Gauss-Bonnet term in the bulk and an induced gravity term and a perfect fluid on the brane. Without making any additional assumptions we extract the Friedmann…

General Relativity and Quantum Cosmology · Physics 2008-11-26 E. N. Saridakis

This paper is aimed at investigating a 5D holographic dark energy in DGP-BRANE cosmology by employing a combination of Sne Ia, BAO and CMB observational data to fit the cosmological parameters in the model. We describe the dynamic of a FRW…

General Relativity and Quantum Cosmology · Physics 2016-06-08 H. Farajollahi , A. Ravanpak

The DGP brane world model allows us to get the observed late time acceleration via modified gravity, without the need for a ``dark energy'' field. This can then be generalised by the inclusion of high energy terms, in the form of a…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Richard A. Brown

We study the phantom-like behavior of a DGP-inspired braneworld scenario where curvature correction on the brane is taken into account. We include a possible modification of the induced gravity on the brane by incorporating higher order…

General Relativity and Quantum Cosmology · Physics 2010-04-30 Kourosh Nozari , T. Azizi , M. R. Setare

The idea of relating the infrared and ultraviolet cutoffs is applied to Brans-Dicke theory of gravitation. We find that extended holographic dark energy from the Hubble scale or the particle horizon as the infrared cutoff will not give…

High Energy Physics - Theory · Physics 2008-11-26 Yungui Gong

We study cosmological dynamics and late-time evolution of an extended induced gravity braneworld scenario. In this scenario, curvature effects are taken into account via the Gauss-Bonnet term in the bulk action and there is also a Chaplygin…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 Kourosh Nozari , T. Azizi , N. Alipour

We present effective gravitational equations at low energies in a $Z_2$-symmetric braneworld with the Gauss-Bonnet term. Our derivation is based on the geometrical projection approach, and we solve iteratively the bulk geometry using the…

High Energy Physics - Theory · Physics 2008-11-26 Tsutomu Kobayashi , Tetsuya Shiromizu , Nathalie Deruelle

The energy density of the holographic dark energy is based on the area law of entropy, and thus any modification of the area law leads to a modified holographic energy density. Inspired by the entropy expression associated with the apparent…

General Relativity and Quantum Cosmology · Physics 2016-03-16 A. Sheykhi , M. H. Dehghani , S. Ghaffari

"Brane Induced Gravity" is regarded as a promising framework for addressing the cosmological constant problem, but it also suffers from a ghost instability for parameter values that make it phenomenologically viable. We carry out a detailed…

High Energy Physics - Theory · Physics 2011-05-27 S. F. Hassan , Stefan Hofmann , Mikael von Strauss

We construct the covariant or model independent induced Einstein-Yang-Mills field equations on a 4-dimensional brane embedded isometrically in an D-dimensional bulk space, assuming the matter fields are confined to the brane. Applying this…

General Relativity and Quantum Cosmology · Physics 2015-02-26 S. Jalalzadeh , T. Rostami

The braneworld model proposed by Dvali, Gabadadze and Porrati leads to an accelerated universe without cosmological constant or other form of dark energy. Nevertheless, we have investigated the consequences of this model when an holo-…

General Relativity and Quantum Cosmology · Physics 2015-05-30 Norman Cruz , Samuel Lepe , Francisco Peña

In the context of f(G) modified gravity, we address the cosmic application of the most generalized form of holographic dark energy (The European Physical Journal C, 77, (2017): 1-8) in this study, as well as a specific instance of it in the…

General Physics · Physics 2025-10-10 Surajit Chattopadhyay
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