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The extended holographic dark energy model with the Hubble horizon as the infrared cutoff avoids the problem of the circular reasoning of the holographic dark energy model. We show that the infrared cutoff of the extended holographic dark…

广义相对论与量子宇宙学 · 物理学 2009-02-09 Yungui Gong , Jie Liu

Cosmological features of Barrow Holographic Dark Energy (BHDE), a recent generalization of original Holographic dark energy with a richer structure, are studied in the context of DGP brane, RS II brane-world, and the cyclic universe. It is…

广义相对论与量子宇宙学 · 物理学 2024-01-23 Anirban Chanda , Arpan Krishna Mitra , Souvik Ghose , Sagar Dey , Bikash Chandra Paul

Classical and quantum entropic properties of holographic dark energy (HDE) are considered in view of the fact that its entropy is far more restrictive than the entropy of a black hole of the same size. In cosmological settings (in which HDE…

广义相对论与量子宇宙学 · 物理学 2008-11-26 R. Horvat

In this work, we have studied interacting holographic dark energy model in the background of FRW model of the universe. The interaction is chosen either in linear combination or in product form of the matter densities for dark matter and…

综合物理 · 物理学 2011-11-01 Nairwita Mazumder , Ritabrata Biswas , Subenoy Chakraborty

This study investigates the Renyi Holographic dark energy, Sharma-Mittal Holographic dark energy and Generalized Holographic dark energy models in the framework of $f(R,T^2)$ gravity, where $R$ denotes the Ricci scalar and $T^2$ represents…

广义相对论与量子宇宙学 · 物理学 2026-02-05 M. Sharif , M. Zeeshan Gul , I. Hashim

In this work, I consider the logarithmic-corrected and the power-law corrected versions of the holographic dark energy (HDE) model in the non-flat FRW universe filled with a viscous Dark Energy (DE) interacting with Dark Matter (DM). We…

综合物理 · 物理学 2015-06-15 Antonio Pasqua

We investigate the Holographic Entanglement Entropy proposal in the context of the (3+1)-dimensional topological black hole. In contrast to the well-studied (2+1)-dimensional case, the maximal extension for this black hole includes only a…

高能物理 - 理论 · 物理学 2018-09-18 Zachary Polonsky , Alex Flournoy

Tensor networks, $T\bar{T}$, and broader notions of a holographic principle all motivate the idea that some notion of gravitational holography should persist in the presence of a radial cutoff. But in the absence of time-reflection…

高能物理 - 理论 · 物理学 2021-02-03 Brianna Grado-White , Donald Marolf , Sean J. Weinberg

In the derivation of Holographic Dark Energy (HDE), the area law of the black hole entropy assumes a crucial role. However, the entropy-area relation can be modified including some quantum effects, motivated from the Loop Quantum Gravity…

综合物理 · 物理学 2015-06-12 Antonio Pasqua , Iuliia Khomenko

We investigate the thermodynamic properties of charged anti-de Sitter black holes surrounded by a cloud of strings in bumblebee gravity. In this framework, the cloud-of-strings parameter $\alpha$ and the Lorentz-violating parameter $\ell$…

广义相对论与量子宇宙学 · 物理学 2026-03-20 Faizuddin Ahmed , Edilberto O. Silva

Recent observational evidences point out towards a late time acceleration of the universe. In order to study the accelerated expansion, scientists have incorporated the existence of an exotic matter with negative pressure, termed as dark…

广义相对论与量子宇宙学 · 物理学 2025-08-13 Santanu Das , Nilanjana Mahata

A model for holographic dark energy is proposed, following the idea that the short distance cut-off is related to the infrared cut-off. We assume that the infrared cut-off relevant to the dark energy is the size of the event horizon. With…

高能物理 - 理论 · 物理学 2016-09-06 Miao Li

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…

宇宙学与河外天体物理 · 物理学 2012-06-25 Zhenhui Zhang , Miao Li , Xiao-Dong Li , Shuang Wang , Wen-Shuai Zhang

We consider the Brans-Dicke (BD) theory of gravity and explore the cosmological implications of the sign-changeable interacting holographic dark energy (HDE) model in the background of Friedmann-Robertson-Walker (FRW) universe. As the…

广义相对论与量子宇宙学 · 物理学 2020-01-08 M. Abdollahi Zadeh , A. Sheykhi

The thermodynamics-gravity conjecture reveals that one can derive the gravitational field equations by using the first law of thermodynamics and vice versa. Considering the entropy associated with the horizon in the form of non-extensive…

广义相对论与量子宇宙学 · 物理学 2021-11-04 Mahnaz Asghari , Ahmad Sheykhi

In this work, we confront the bound on an ultraviolet cutoff (UV) of a quantum field theory (QFT) proposed by Cohen, Kaplan, and Nelson (CKN) with the latest results of the Dark Energy Spectroscopic Instrument (DESI). The former relates the…

宇宙学与河外天体物理 · 物理学 2025-01-10 Patrick Adolf , Martin Hirsch , Sara Krieg , Heinrich Päs , Mustafa Tabet

We study the thermodynamic geometry of the one-dimensional Blume--Capel model within the Tsallis nonextensive framework to understand how generalized statistics modify correlation structure and pseudo-critical behaviour. Using the transfer…

统计力学 · 物理学 2026-03-19 Amijit Bhattacharjee , Himanshu Bora , Prabwal Phukon

In this study, we investigate the cosmological implications of two DE models, introduced by Chen \& Jing \cite{modelhigher} and by Granda \& Oliveros \cite{gohnde}. The first model comprises three principal components: one term proportional…

广义相对论与量子宇宙学 · 物理学 2025-09-16 Antonio Pasqua

We have put forward a new unified framework which provides a consistent and rather complete account of the growth index of matter perturbations in the regime where the dark energy is allowed to have clustering. In particular, we find that…

宇宙学与河外天体物理 · 物理学 2015-06-23 Spyros Basilakos

We construct a holographic model for dark energy in the Brans-Dicke cosmology by using the holographic principle considering the Barrow entropy instead of the standard Bekenstein-Hawking one. The former arises from the effort to account for…

广义相对论与量子宇宙学 · 物理学 2025-03-25 S. Ghaffari , G. G. Luciano , S. Capozziello
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