Ghost Chaplygin scalar field model of dark energy

Adabi, F.; Karami, K.; Mousivand, M.

doi:10.1139/cjp-2012-0314

Cited by 8 publications

(3 citation statements)

References 48 publications

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“…In ongoing investigations to comprehend the nature of the universe, a huge number of DE models have been built on holographic principle and known as holographic dark energy (HDE) models [18,21,22]. Adabi et al [23] reconstructed the potential and dynamics for the Chaplygin scalar field model according to the evolutionary behavior of ghost DE in the context of Einstein's theory phantom accelerated expansion of the universe. The evolution equation and EoS parameters for the nonflat FRW universe are elaborated using the HDE model with Granda-Oliveros cut-off in [24].…”

Section: Introductionmentioning

confidence: 99%

Amended FRW Metric and Rényi Dark Energy Model

Ali

Iqbal

Khan

et al. 2021

Advances in High Energy Physics

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This article is devoted to exploring the Rényi holographic dark energy model in the theory of Chern-Simons modified gravity. We studied the deceleration parameter, equation of state, and cosmological plane considering the Amended FRW modal. Modified field equations of -gravity theory gave two independent solutions. In the first case, this model provided the transitional change from deceleration to acceleration compatible with collected observational data. However, it supported a decelerating phase of expansion only in the second case. It was noted that the Equation of State advocated the dominance era under the influence of dark energy in the first case and the second predicted the influence of Λ CDM. In both cases, ω < 0 , ω ′ < 0 voted that the universe is in a freezing region and its cosmic expansion is more rapidly accelerated in the background of Chern-Simons modified gravity.

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Section: Introductionmentioning

confidence: 99%

Amended FRW Metric and Rényi Dark Energy Model

Ali

Iqbal

Khan

et al. 2021

Advances in High Energy Physics

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“…Later, reconstruction mechanisms of ghost, holographic and new agegraphic dark energy models are completed in the fractal cosmology by Karami et al [53]. Another correspondence established between the GDE and the Chaplygin type scalar field model has been studied in non-flat Friedmann-Robertson-Walker (FRW) space-time [54]. Moreover, Karami et al [55] obtained an effective EoS parameter of the QCD ghost f(T )-gravity in the framework of the FRW Universe and fitted their results by using the latest astrophysical data obtained in the SNeIa, CMBR and the BAO observations.…”

Section: Introductionmentioning

confidence: 99%

Ghost scalar field dark energy models from an extended Kaluza–Klein perspective

Korunur

2021

Class. Quantum Grav.

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Reconstruction process of scalar field models (quintessence, tachyon, dilaton and K-essence), which can be performed by making use of some dark energy density definitions such as holographic, Ricci, new agegraphic and ghost types proposals, has been an interesting and very attractive area to many physicists in literature. In this work, in a five-dimensional framework, we establish a correspondence between the quintessence, tachyon and the dilaton type scalar field definitions and the generalized ghost dark energy model by considering the extended form of the Kaluza–Klein (EKK) gravity. Accordingly, we numerically study the associated equation of state parameters, as well as their kinetic energy and scalar potential terms.

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“…Gao et al purposed some cosmological constraints on the holographic Ricci dark energy. Adabi et al [7] discussed the correspondence between the ghost dark energy model and Chaplygin scalar field in the framework of general relativity (GR). They investigated FRW universe containing DE and DM.…”

Section: Introductionmentioning

confidence: 99%

A Study of Holographic Dark Energy Models in Chern-Simon Modified Gravity

Amir,

Ali

2015

Preprint

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This paper is devoted to study some holographic dark energy models in the context of Chern-Simon modified gravity by considering FRW universe. We analyze the equation of state parameter using Granda and Oliveros infrared cut-off proposal which describes the accelerated expansion of the universe under the restrictions on the parameter α. It is shown that for the accelerated expansion phase −1 < ω Λ < − 1 3 , the parameter α varies according as 1 < α < 3 2 . Furthermore, for 0 < α < 1, the holographic energy and pressure density illustrates phantom-like theory of the evolution when ω Λ < −1. Also, we discuss the correspondence between the quintessence, K-essence, tachyon and dilaton field models and holographic dark energy models on similar fashion. To discuss the accelerated expansion of the universe, we explore the potential and the dynamics of quintessence, K-essence, tachyon and dilaton field models.

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Ghost Chaplygin scalar field model of dark energy

Cited by 8 publications

References 48 publications

Amended FRW Metric and Rényi Dark Energy Model

Amended FRW Metric and Rényi Dark Energy Model

Ghost scalar field dark energy models from an extended Kaluza–Klein perspective

A Study of Holographic Dark Energy Models in Chern-Simon Modified Gravity

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