753 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Research Institute for Astronomy and Astrophysics of MaraghIR261 papers
- Shahid Beheshti UniversityIR40 papers
- University of WaterlooCA31 papers
- Institute for Research in Fundamental SciencesIR29 papers
- International Center for Relativistic AstrophysicsIT24 papers
- Shahid Bahonar University of KermanIR23 papers
- Canadian Quantum Research CenterCA22 papers
- University of MazandaranIR17 papers
- Shahid Chamran University of AhvazIR12 papers
- Yasouj UniversityIR12 papers
- Helmholtz Institute JenaDE11 papers
- Isfahan University of TechnologyIR9 papers
11 papers · 2 filters
Dark Universe inspired by the Kaluza-Klein gravity and impact on Primordial Gravitational Waves
Kimet Jusufi, Giuseppe Gaetano Luciano, Ahmad Sheykhi +1
We explore the potential implications of Kaluza-Klein (KK) gravity in unifying the dark sector of the Universe. Through dimensional reduction in KK gravity, the 5D spacetime framew…
Barrow Cosmology and Big-Bang Nucleosynthesis
Ahmad Sheykhi, Ava Shahbazi Sooraki
Using thermodynamics-gravity conjecture, we present the formal derivation of the modified Friedmann equations inspired by the Barrow entropy, , where $0\leqδ\leq…
Modified theory in light of gravitational wave standard sirens
Mahnaz Asghari, Ahmad Sheykhi
In this paper, we ponder observational constraints on the modified gravity, where the gravitational action is a function of Ricci scalar plus the trace of the energy-m…
Holographic dark energy in Barrow cosmology with Granda-Oliveros IR cutoff
M. Motaghi, A. Sheykhi, E. Ebrahimi
Applying the modified Barrow entropy, inspired by the quantum fluctuation effects, to the cosmological background, and using thermodynamics-gravity conjuncture, the Friedmann equat…
Thermodynamical properties of nonsingular universe
Ahmad Sheykhi, Leila Liravi, Kimet Jusufi
We disclose the thermodynamical properties of the apparent horizon in a nonsingular universe. We take into account the zero-point length correction to the gravitational potential a…
Growth of cosmic perturbations in the modified gravity
Mahnaz Asghari, Ahmad Sheykhi
We explore the generalized modified theory of gravity, where the gravitational Lagrangian is a function of Ricci scalar and the trace of the energy-momentum tensor …
Cosmology from String T-duality and zero-point length
Giuseppe Gaetano Luciano, Ahmad Sheykhi
Inspired by String T-duality and taking into account the zero-point length correction, , to the gravitational potential, we construct modified Friedmann equations by applying…
Quark stars in massive gravity might be candidates for the mass gap objects
J. Sedaghat, B. Eslam Panah, R. Moradi +2
We have investigated the structural properties of strange quark stars (SQSs) in a modified theory of gravity known as massive gravity. In order to obtain the equation of state (EOS…
Isotropic and anisotropic neutron star structure in 4D Einstein Gauss Bonnet Gravity
Gholam Hossein Bordbar, Mohammad Mazhari, Ahmad Poostforush
With regard to the coupling constant and the strong magnetic field of neutron stars, we have studied these stars in the 4D Einstein Gauss Bonnet (4D EGB) gravity model in order to…
Apparent Dark Matter Inspired by Einstein Equation of State
Kimet Jusufi, Ahmad Sheykhi
The purpose of this article is twofold. First, by means of Padmanabhan's proposal on the emergence nature of gravity, we recover the CDM model and the effect of the dark matter…
Thermal fluctuations of (non)linearly charged BTZ black hole in massive gravity
Behnam Pourhassan, Seyed Hossein Hendi, Sudhaker Upadhyay +2
We consider a charged BTZ black hole in asymptotically AdS space-time of massive gravity to study the effect of the thermal fluctuations on the black hole thermodynamics. We consid…