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相关论文: Ghost dark energy with sign-changeable interaction…

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We investigate the generalized Quantum Chromodynamics (QCD) ghost model of dark energy in the framework of Einstein gravity. First, we study the non-interacting generalized ghost dark energy in a flat Friedmann-Robertson-Walker (FRW)…

广义相对论与量子宇宙学 · 物理学 2015-06-11 Esmaeil Ebrahimi , Ahmad Sheykhi , Hamzeh Alavirad

Exploring the accelerated expansion of the universe, we investigate the generalized ghost dark energy (GGDE) model from the statefinder diagnosis analysis in a flat FRW universe. First we calculate the cosmological evolution and statefinder…

广义相对论与量子宇宙学 · 物理学 2015-06-12 Mohammad Malekjani

In this study, we analyze the ghost dark energy model in Brans-Dicke cosmology in the framework of a flat Friedmann-Lemaitre-Robertson-Walker universe. We consider an interaction between ghost dark energy and dark matter with a…

广义相对论与量子宇宙学 · 物理学 2026-01-05 Kirti Mehta , Pankaj Kumar , N. Myrzakulov , S. H. Shekh

In this manuscript, we use the correspondence principle to construct the generalized ghost dark energy $f(Q)$ model, where $Q$ is the non-metricity. For this purpose, we use the Friedman-Robertson-Walker universe model with power-law scale…

广义相对论与量子宇宙学 · 物理学 2024-03-05 M. Sharif , Madiha Ajmal

We study a correspondence between $f(R)$ model of gravity and a phenomenological kind of dark energy (DE), which is known as QCD ghost dark energy. Since this kind of dark energy is not stable in the context of Einsteinian theory of gravity…

综合物理 · 物理学 2014-01-21 Kh. Saaidi , Ali. Aghamohammadi , B. Sabet , O. Farooq

We investigate the QCD ghost model of dark energy in the framework of Brans-Dicke cosmology. First, we study the non-interacting ghost dark energy in a flat Brans-Dicke theory. In this case we obtain the EoS and the deceleration parameters…

高能物理 - 理论 · 物理学 2015-05-28 Esmaeil Ebrahimi , Ahmad Sheykhi

We study the evolution of the dark energy parameter within the scope of a spatially non-flat and isotropic Friedmann-Robertson-Walker (FRW) model filled with barotropic fluid and bulk viscous stresses. We have obtained cosmological…

宇宙学与河外天体物理 · 物理学 2015-06-11 Hassan Amirhashchi , Anirudh Pradhan , Hishamuddin Zainuddin

A new dark energy model called "ghost dark energy" was recently suggested to explain the observed accelerating expansion of the universe. This model originates from the Veneziano ghost of QCD. The dark energy density is proportional to…

高能物理 - 理论 · 物理学 2015-03-19 A. Sheykhi , M. Sadegh Movahed

In this paper we investigate ghost dark energy model in the presence of non-linear interaction between dark energy and dark matter. We also extend the analysis to the so called generalized ghost dark energy (GGDE) which $\rho_D=\alpha…

宇宙学与河外天体物理 · 物理学 2017-07-05 E. Ebrahimi , H. Golchin , A. Mehrabi , S. M. S. Movahed

This paper focuses on developing a generalized ghost dark energy model $f\mathcal{(Q,T)}$ through the correspondence scheme for a non-interacting scenario involving pressureless matter and a power-law scale factor. We analyze the…

广义相对论与量子宇宙学 · 物理学 2024-09-06 M. Sharif , Iqra Ibrar

In this paper we extend the form of interaction term into the non-linear regime in the ghost dark energy model. A general form of non-linear interaction term is presented and cosmic dynamic equations are obtained. Next, the model is…

广义相对论与量子宇宙学 · 物理学 2016-11-03 E. Ebrahimi , H. Golchin

It was argued that the vacuum energy of the Veneziano ghost field of QCD, in a time-dependent background, can be written in the general form, $H + O(H^2)$, where $H$ is the Hubble parameter. Based on this, a phenomenological dark energy…

广义相对论与量子宇宙学 · 物理学 2013-07-24 A. Sheykhi , E. Ebrahimi , Y. Yosefi

In this paper, we investigate the cosmological consequences of ghost dark energy model in modified Gauss-Bonnet gravity. We construct ghost dark energy $f(G)$ model by using correspondence scenario for both interacting and non-interacting…

广义相对论与量子宇宙学 · 物理学 2019-08-21 M. Sharif , Saadia Saba

We explore a spatially homogeneous and isotropic Friedmann-Robertson-Walker (FRW) universe which is filled with agegraphic dark energy (ADE) with mutual interaction with pressureless dark matter in the background of Brans-Dicke (BD) theory.…

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

We employ a ghost model of interacting dark energy to obtain the equation of state \omega for ghost energy density in an FRW universe in complex quintessence theory. We reconstruct the potential and study the dynamics of the scalar field…

高能物理 - 理论 · 物理学 2022-01-04 Yang Liu

A phenomenological generalized ghost dark energy model has been studied under the framework of FRW universe. In ghost dark energy model the energy density depends linearly on Hubble parameter (H) but in this dark energy model, the energy…

广义相对论与量子宇宙学 · 物理学 2019-08-14 Mahasweta Biswas , Ujjal Debnath , Shounak Ghosh , B. K. Guha

Within the framework of FRW cosmology, we study the QCD modified ghost scalar field models of dark energy in the presence of both interaction and viscosity. For a spatially non-flat FRW universe containing modified ghost dark energy (MGDE)…

综合物理 · 物理学 2013-04-30 K. Karami , S. Asadzadeh , M. Mousivand , Z. Safari

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

We investigate the ghost model of dark energy in the framework of DGP braneworld. We explore the cosmological consequences of this model by determining the equation of state parameter, $\omega_D$, the deceleration and the density…

广义相对论与量子宇宙学 · 物理学 2018-10-31 M. Abdollahi Zadeh , A. Sheykhi

The theory of non-gravitational interaction between a pressure-less dark matter (DM) and dark energy (DE) is a phenomenologically rich cosmological domain which has received magnificent attention in the community. In the present article we…

广义相对论与量子宇宙学 · 物理学 2024-03-05 Sudip Halder , Jaume de Haro , Tapan Saha , Supriya Pan
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