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相关论文: Renyi Holographic Dark Energy models in Teleparall…

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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

In this paper, we discuss cosmological application of holographic Dark Energy (HDE) in the framework of $f(G)$ modified gravity. For this purpose, we construct $f(G)$ model with the inclusion of HDE and a well-known power law form of the…

综合物理 · 物理学 2015-06-12 Abdul Jawad , Antonio Pasqua , Surajit Chattopadhyay

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…

宇宙学与河外天体物理 · 物理学 2015-06-04 Kh. Saaidi , A. Aghamohammadi

The manuscript presents the dynamics of Tsallis holographic dark energy (THDE) and R\'enyi holographic dark energy (RHDE) prescribed by a non-linear interaction in the FRW spacetime and for a scale factor evolving with a composite power…

广义相对论与量子宇宙学 · 物理学 2020-06-22 Snehasish Bhattacharjee

Entropic cosmology with the R\'{e}nyi entropy of the apparent horizon $S_R=(1/\alpha)\ln(1+\alpha S_{BH})$, where $S_{BH}$ is the Bekenstein--Hawking entropy, is studied. By virtue of the thermodynamics-gravity correspondence a model of…

综合物理 · 物理学 2026-05-04 S. I. Kruglov

The present work deals with holographic dark energy in the context of unimodular $f(T)$ gravity, which is a modification of teleparallel gravity. We develop the general reconstruction procedure of the $f(T)$ form that can yield the…

综合物理 · 物理学 2017-11-07 A. E. Godonou , M. J. S. Houndjo , J. Tossa

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

In this paper we use the conformal teleparallel gravity to study an isotropic and homogeneous Universe which is settled by the FRW metric. We solve the field equations and we obtain the behavior of some cosmological parameters such as scale…

广义相对论与量子宇宙学 · 物理学 2016-03-30 J. G. Silva , A. F. Santos , S. C. Ulhoa

Here, we peruse cosmological usage of the most promising candidates of dark energy in the framework of $f(T)$ gravity theory. We reconstruct the different $f(T)$ modifed gravity models in the spatially flat FRW universe according to…

广义相对论与量子宇宙学 · 物理学 2016-10-12 Pameli Saha , Ujjal Debnath

This paper examines the late-time accelerating Universe and the formation of large-scale structures within the modified symmetric teleparallel gravity framework, specifically using the $f(Q)$-gravity model, in light of recent cosmological…

广义相对论与量子宇宙学 · 物理学 2024-12-31 Shambel Sahlu , Amare Abebe

The pursuit of understanding the mysteries surrounding dark energy has sparked significant interest within the field of cosmology. While conventional approaches, such as the cosmological constant, have been extensively explored, alternative…

广义相对论与量子宇宙学 · 物理学 2024-08-02 Oem Trivedi , Maxim Khlopov , Jackson Levi Said , Rafael C. Nunes

We use three IR cutoffs, including the future event horizon, the Hubble and Granda-Oliveros (GO) cutoffs, to construct three holographic models of dark energy. Additionally, we consider a Friedmann-Robertson-Walker (FRW) universe filled by…

广义相对论与量子宇宙学 · 物理学 2017-06-06 M. Abdollahi Zadeh , A. Sheykhi , H. Moradpour

In this paper, we first obtain the energy density by the approach of the new agegraphic dark energy model, and then the $f(T,B)$ gravity model is studied as an alternative to the dark energy in a viscous fluid by flat-FRW background, in…

广义相对论与量子宇宙学 · 物理学 2020-06-17 A. Pourbagher , Alireza Amani

This study investigates the cosmological implications of $f(R,\Sigma,T)$ gravity by reconstructing the Hubble parameter from a logarithmic parameterization of the $O_m(z)$ diagnostic. Our approach offers a model-independent way to probe the…

广义相对论与量子宇宙学 · 物理学 2026-05-12 N. Myrzakulov , Anirudh Pradhan , Anil Kumar Yadav , S. H. Shekh

In this study, FRW cosmology in modified gravity containing arbitrary function $f(R)$ is taken into consideration when our action are coupled with Weyl tensor. It is indicated that the bouncing solution emerges in the model while the…

综合物理 · 物理学 2015-03-31 Mohammad Ghanaatian , Farzad Milani

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

We investigate the cosmological dynamics of FHDE within $f(T)$ gravity by employing the dynamical system approach in a spatially flat FRW background. By introducing appropriate dimensionless variables, the field equations are reformulated…

广义相对论与量子宇宙学 · 物理学 2026-02-23 Elangbam Chingkheinganba Meetei , S. Surendra Singh

In this study, we explore the cosmological implications of a modified gravity theory characterized by the function \( f(R, \Sigma, T) \), where \( R \) is the Ricci scalar, \( \Sigma \) represents a geometric deformation term, and \( T \)…

广义相对论与量子宇宙学 · 物理学 2026-01-06 N. Myrzakulov , S. H. Shekh , S. R. Bhoyar , Anirudh Pradhan

In this work we investigate the spherical collapse model in flat FRW dark energy universes. We consider the Holographic Dark Energy (HDE) model as a dynamical dark energy scenario with a slowly time-varying equation-of-state (EoS) parameter…

广义相对论与量子宇宙学 · 物理学 2015-01-27 Tayebe Naderi , Mohammad Malekjani , Francesco Pace

We review the paradigm of holographic dark energy (HDE), which arises from a theoretical attempt of applying the holographic principle (HP) to the dark energy (DE) problem. Making use of the HP and the dimensional analysis, we derive the…

宇宙学与河外天体物理 · 物理学 2017-08-24 Shuang Wang , Yi Wang , Miao Li