中文
相关论文

相关论文: Kaniadakis holographic dark energy in Brans-Dicke …

200 篇论文

It is well-known that any modification to the entropy expression not only change the energy density of the holographic dark energy, but also modifies the cosmological field equations through thermodynamics-gravity correspondence. Here we…

广义相对论与量子宇宙学 · 物理学 2026-05-28 A. Sheykhi , A. Asvar , E. Ebrahimi

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

Using the Tsallis generalized entropy, holographic hypothesis and also considering the Hubble horizon as the IR cutoff, we build a holographic model for dark energy and study its cosmological consequences in the Brans-Dicke framework. At…

广义相对论与量子宇宙学 · 物理学 2018-09-05 S. Ghaffari , H. Moradpour , I. P. Lobo , J. P. Morais Graça , Valdir B. Bezerra

In this paper, the holographic dark energy model is considered in Brans-Dicke theory where the holographic dark energy density $\rho_{\Lambda} =3c^2 M^{2}_{pl} L^{-2}$ is replaced with $\rho_{h}=3c^2 \Phi(t)L^{-2}$. Here…

天体物理学 · 物理学 2009-06-23 Lixin Xu , Wenbo Li , Jianbo Lu

We construct a holographic dark energy scenario based on Kaniadakis entropy, which is a generalization of Boltzmann-Gibbs entropy that arises from relativistic statistical theory and is characterized by a single parameter $K$ which…

广义相对论与量子宇宙学 · 物理学 2022-06-01 Niki Drepanou , Andreas Lymperis , Emmanuel N. Saridakis , Kuralay Yesmakhanova

In the framework of Brans-Dicke cosmology, we have studied the interacting power-law and logarithmic entropy-corrected holographic dark energy models with different cut-offs. The Brans-Dicke parameter is investigated versus the conditions…

广义相对论与量子宇宙学 · 物理学 2017-06-06 F. Darabi , F. Felegary

Employing the modified entropy-area relation suggested by Tsallis and Cirto \cite{non3}, and the holographic hypothesis, a new holographic dark energy (HDE) model is proposed. Considering a flat Friedmann-Robertson-Walker (FRW) universe in…

广义相对论与量子宇宙学 · 物理学 2018-04-19 M. Tavayef , A. Sheykhi , Kazuharu Bamba , H. Moradpour

We study cosmological applications of the holographic energy density. Considering the holographic energy density as a dynamical cosmological constant, we need the Brans-Dicke theory as a dynamical framework instead of general relativity. In…

高能物理 - 理论 · 物理学 2007-05-23 Hungsoo Kim , H. W. Lee , Y. S. Myung

We introduce a holographic dark energy model that incorporates the first-order approximate Kaniadaski entropy, utilizing the Hubble horizon, $1/H$, as the infrared cutoff. We investigate the cosmological evolution within this framework. The…

宇宙学与河外天体物理 · 物理学 2024-06-14 Wei Fang , Guo Chen , Chao-Jun Feng , Wei Du , Chenggang Shu

We study the dynamics of interacting holographic dark energy model in Brans-Dicke cosmology for the future event horizon and the Hubble horizon cut-offs. We determine the system of first-order differential equations for the future event…

广义相对论与量子宇宙学 · 物理学 2017-11-08 F. Felegary , F. Darabi , M. R. Setare

By extending the standard holographic principle to a cosmological framework and combining the non-flat condition with the Kaniadakis entropy, we construct the non-flat Kaniadakis holographic dark energy model. The model employs Kaniadakis…

综合物理 · 物理学 2023-02-24 Suresh Kumar P , Bramha Dutta Pandey , Umesh Kumar Sharma , Pankaj

In present research, we construct Kaniadakis holographic dark energy (KHDE) model within a non-flat Universe by considering the Friedmann-Robertson-Walker (FRW) metric with open and closed spatial geometries. We therefore investigate cosmic…

综合物理 · 物理学 2022-04-19 Umesh Kumar Sharma , Vipin Chandra Dubey , A. H. Ziaie , H. Moradpour

We study cosmological application of the holographic energy density in the Brans-Dicke theory. Considering the holographic energy density as a dynamical cosmological constant, it is more natural to study it in the Brans-Dicke theory than in…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Hungsoo Kim , H. W. Lee , Y. S. Myung

Kaniadakis Holographic Dark Energy is a one-parameter extension of the standard HDE framework, in which the horizon entropy is reformulated using Kaniadakis entropy. At the cosmological level, it has been shown to give rise to modified…

宇宙学与河外天体物理 · 物理学 2025-09-23 Giuseppe Gaetano Luciano , Andronikos Paliathanasis

In this paper, an interacting holographic dark energy model with Hubble horizon as an infra-red cut-off is considered in the framework of Brans-Dicke theory. We propose a logarithmic form $\phi \propto ln(\alpha+\beta a)$ of the Brans-Dicke…

广义相对论与量子宇宙学 · 物理学 2016-09-07 C P Singh , Pankaj Kumar

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…

高能物理 - 理论 · 物理学 2008-11-26 Yungui Gong

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. Unfortunately, it is hit with the no-go theorem. In this paper, we…

广义相对论与量子宇宙学 · 物理学 2010-05-12 Jie Liu , Yungui Gong , Ximing Chen

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…

高能物理 - 理论 · 物理学 2009-11-05 Ahmad Sheykhi

The present day accelerated expansion of the universe is naturally addressed within the Brans-Dicke theory just by using holographic dark energy model with inverse of Hubble scale as IR cutoff. It is also concluded that if the universe…

广义相对论与量子宇宙学 · 物理学 2015-05-13 Bibekananda Nayak , Lambodar Prasad Singh

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…

综合物理 · 物理学 2012-03-12 Ahmad Sheykhi , Kayoomars Karami , Mubasher Jamil , E. Kazemi , M. Haddad
‹ 上一页 1 2 3 10 下一页 ›