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We present a thermodynamical description of the interaction between holographic dark energy and dark matter. If holographic dark energy and dark matter evolve separately, each of them remains in thermodynamic equilibrium. A small…

High Energy Physics - Theory · Physics 2008-11-26 Bin Wang , Chi-Yong Lin , Diego Pavon , Elcio Abdalla

We extend the holographic Ricci dark energy model to include some direct, non-gravitational interaction between dark energy and dark matter. We consider three phenomenological forms for the interaction term $Q$ in the model, namely, $Q$ is…

Cosmology and Nongalactic Astrophysics · Physics 2012-04-10 Tian-Fu Fu , Jing-Fei Zhang , Jin-Qian Chen , Xin Zhang

In this work, we examine the cosmological characteristics of the Power Law Entropy Corrected Holographic Dark Energy (PLECHDE) model with infrared (IR) cut-off, which is determined by the curvature parameter $k$, the time derivative of $H$,…

General Relativity and Quantum Cosmology · Physics 2024-01-02 Antonio Pasqua , Surajit Chattopadhyay , Irina Radinschi , Azzah Aziz Alshehri , Abdel Nasser Tawfik

Motivated by the work of Yang et al., \emph{Mod. Phys. Lett. A}, \textbf{26}, 191 (2011), we report a study on the New Holographic Dark Energy (NHDE) model with energy density given by $\rho_D=\frac{3\phi^2}{4\omega}(\mu H^2+\nu \dot{H})$…

General Relativity and Quantum Cosmology · Physics 2014-10-31 Surajit Chattopadhyay , Antonio Pasqua , Martiros Khurshudyan

We formulate an extended holographic dark energy scenario based on a recently proposed two-parameter generalized entropic functional. Unlike constructions that phenomenologically impose modified entropy-area relations at the horizon level,…

General Relativity and Quantum Cosmology · Physics 2026-03-12 G. G. Luciano , E. N. Saridakis

Holographic dark energy (HDE), which arises from a theoretical attempt to apply the holographic principle (HP) to the dark energy (DE) problem, has attracted significant attention over the past two decades. We perform a comprehensive…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-18 Jun-Xian Li , Shuang Wang

Dark Energy models are here investigated and studied in the framework of the Chern-Simons modified gravity model. We bring into focus the Holographic Dark Energy (HDE) model with Granda-Oliveros cut-off, the Modified Holographic Ricci Dark…

General Relativity and Quantum Cosmology · Physics 2015-02-05 Antonio Pasqua , Roldao da Rocha , Surajit Chattopadhyay

In the original holographic dark energy (HDE) model, the dark energy density is proposed to be $\rho_{de} = 3c^2M^2_{pl}L^{-2}$, with $c$ is a dimensionless constant characterizing the properties of the HDE. In this work, we propose the…

Cosmology and Nongalactic Astrophysics · Physics 2012-06-25 Zhenhui Zhang , Miao Li , Xiao-Dong Li , Shuang Wang , Wen-Shuai Zhang

In this paper, we briefly review the holographic dark energy model and introduce the idea that dark energy is a kind of thermal energy related to the quantum entanglement of the vacuum across a cosmic future event horizon. The holographic…

General Relativity and Quantum Cosmology · Physics 2019-01-30 Jae-Weon Lee , Hyeong-Chan Kim , Jungjai Lee

We consider a universe filled by a modified generalized Chaplygin gas together with a pressureless dark matter component. We get a thermodynamical interpretation for the modified generalized Chaplygin gas confined to the apparent horizon of…

General Relativity and Quantum Cosmology · Physics 2016-05-18 H. Ebadi , H. Moradpour

According to a generalization of black hole thermodynamics to a cosmological framework, it is possible to define a temperature for the cosmological horizon. The hypothesis of thermal equilibrium between the dark energy and the horizon has…

Cosmology and Nongalactic Astrophysics · Physics 2014-04-02 Vincent Poitras

The interacting and holographic dark energy models involve two important quantities. One is the characteristic size of the holographic bound and the other is the coupling term of the interaction between dark energy and dark matter. Rather…

High Energy Physics - Theory · Physics 2008-11-26 Bo Hu , Yi Ling

In this paper, the model of holographic Chaplygin gas has been extended to two general cases: first is the case of modified variable Chaplygin gas and secondly of the viscous generalized Chaplygin gas. The dynamics of the model are…

General Relativity and Quantum Cosmology · Physics 2010-04-14 Mubasher Jamil , M. Umar Farooq , Muneer Ahmad Rashid

We construct a new cosmological holographic dark energy scenario based on Loop Quantum Gravity inspired entropy, instead of the standard Bekenstein-Hawking one. The former is an extended black-hole entropy that arises from non-extensive…

General Relativity and Quantum Cosmology · Physics 2023-10-03 Andreas Lymperis

Dark energy models inspired by the cosmological holographic principle are studied in homogeneous isotropic spacetime with a general choice for the dark energy density $\rho_d=3(\alpha H^2+\beta\dot{H})$. Special choices of the parameters…

General Relativity and Quantum Cosmology · Physics 2014-12-02 S. Som , A. Sil

We have discussed the correspondence of the well-accepted $f(G)$ gravity theory with two dark energy models : $(m,n)$-type holographic dark energy [$(m,n)$-type HDE] and entropy-corrected $(m,n)$-type holographic dark energy. For this…

General Relativity and Quantum Cosmology · Physics 2014-03-05 Rahul Ghosh , Ujjal Debnath

As is well known, black hole entropy is proportional to the area of the horizon suggesting a holographic principle wherein all degrees of freedom contributing to the entropy reside on the surface. In this note, we point out that large scale…

General Physics · Physics 2013-12-19 C. Sivaram , Kenath Arun

In this work, the holographic dark energy model is constructed by using the non-extensive nature of the Schwarzschild black hole via the R\'enyi entropy. Due to the non-extensivity, the black hole can be stable under the process of fixing…

General Relativity and Quantum Cosmology · Physics 2024-07-30 Ratchaphat Nakarachinda , Chakrit Pongkitivanichkul , Daris Samart , Lunchakorn Tannukij , Pitayuth Wongjun

Motivated by the work [K. Karami, J. Fehri, {{\it Phys. Lett. B}} {\bf 684}, 61 (2010)] and [A. Sheykhi, {{\it Phys. Lett. B}} {\bf 681}, 205 (2009)], we generalize their work to the new holographic dark energy model with…

General Relativity and Quantum Cosmology · Physics 2013-11-26 Weiqiang Yang , Yabo Wu , Limin Song , Yangyang Su , Jian Li , Dandan Zhang , Xiaogang Wang

In this work, we have considered the entropy-corrected new agegraphic dark energy (ECNADE) model in Horava-Lifshitz gravity in FRW universe. We have discussed the correspondence between ECNADE and other dark energy models such as…

General Physics · Physics 2015-05-28 Piyali Bagchi Khatua , Shuvendu Chakraborty , Ujjal Debnath