103 citations · 350 across the 15 of their papers we have counts for
15 papers
Ghost Dark Energy in Tsallis and Barrow Cosmology
Esmaeil Ebrahimi, Ahmad Sheykhi
According to the thermodynamics-gravity conjecture, any modification to the entropy expression leads to the modified cosmological field equations. Based on this, we investigate the…
Consistency of nonlinear interacting ghost dark energy with recent observations
E. Ebrahimi, H. Golchin, A. Mehrabi +1
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 gen…
Non-Linearly Interacting Ghost Dark Energy in Brans-Dicke Cosmology
E. Ebrahimi, H. Golchin
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 cosmi…
Interacting Dark Energy: Dynamical System Analysis
Hanif Golchin, Sara Jamali, Esmaeil Ebrahimi
We investigate the impacts of interaction between dark matter and dark energy in the context of two dark energy models, holographic and ghost dark energy. In fact, using the dynami…
Quintessence reconstruction of interacting HDE in a non-flat universe
Ahmad Sheykhi, Hamzeh Alavirad, Ali Bagheri +1
In this paper we consider quintessence reconstruction of interacting holographic dark energy in a non-flat background. As system's IR cutoff we choose the radius of the event horiz…
Sounds of instability from generalized QCD ghost dark energy
Esmaeil Ebrahimi, Ahmad Sheykhi
We investigate about the stability of generalized QCD ghost dark energy model against perturbations in the FRW background. For this purpose, we use the squared sound speed …
Generalized ghost dark energy in Brans-Dicke theory
A. Sheykhi, E. Ebrahimi, Y. Yosefi
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, , where is the Hubble…
Interacting generalized ghost dark energy in non-flat universe
Esmaeil Ebrahimi, Ahmad Sheykhi, Hamzeh Alavirad
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 d…
Instability of QCD ghost dark energy model
Esmaeil Ebrahimi, Ahmad Sheykhi
We investigate the instability of the ghost dark energy model against perturbations in different cases. To this goal we use the squared sound speed whose sign determines th…
Interacting Ghost Dark Energy in Brans-Dicke Theory
Esmaeil Ebrahimi, Ahmad Sheykhi
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…
Tachyon Reconstruction of Ghost Dark Energy
A. Sheykhi, M. Sadegh Movahed, E. Ebrahimi
Recently it has been argued that a possible source for the dark energy may arise due to the contribution to the vacuum energy of the QCD ghost in a time-dependent background. In th…
Scalar Field Reconstruction of Power-Law Entropy-Corrected HDE
Esmaeil Ebrahimi, Ahmad Sheykhi
A so called "power-law entropy-corrected holographic dark energy" (PLECHDE) was recently proposed to explain the dark energy dominated universe. This model is based on the power-la…
Magnetic Branes in Brans-Dicke-Maxwell Theory
A. Sheykhi, E. Ebrahimi
We present a new class of magnetic brane solutions in -dimensional Brans-Dicke-Maxwell theory in the presence of a quadratic potential for the scalar field. These solutions…
-Dimensional Lorentzian Wormholes in an Expanding Cosmological Background
E. Ebrahimi, N. Riazi
We discuss -dimensional dynamical wormholes in an evolving cosmological background with a throat expanding with time. These solutions are examined in the general relativity…
Expanding -Dimensional Wormhole Solutions in Brans-Dicke Cosmology
E. Ebrahimi, N. Riazi
We have obtained two classes of -dimensional wormhole solutions using a traceless energy-momentum tensor in Brans-Dicke theory of gravity. The first class contains wormhole…