119 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Hamid Shabani2 profiles21 · h 16
- A. Ziaie15 · h 19
- D. Saadatmand13 · h 16
- S. Dmitriev9 · h 43
- H. Tavakoli-Zaniani2 profiles8 · h 3
- J. Messchendorp8 · h 52
- M. Mohammadi-Dadkan2 profiles8 · h 3
- N. Kalantar-Nayestanaki8 · h 52
- O. Zabeti8 · h 7
- R. Ramazani-sharifabadi2 profiles8 · h 4
- A. Kozela7 · h 32
- A. Ramazani-Moghaddam-Arani7 · h 12
- Research Institute for Astronomy and Astrophysics of MaraghIR11 papers
- Institute of Metal Superplasticity ProblemsRU10 papers
- University of MaraghehIR10 papers
- University of TehranIR9 papers
- Islamic Azad University QuchanIR8 papers
- University of GroningenNL8 papers
- University of KashanIR8 papers
- Institute of Nuclear Physics, Polish Academy of SciencesPL7 papers
- Jagiellonian UniversityPL7 papers
- National Research Tomsk State UniversityRU7 papers
- University of Silesia in KatowicePL7 papers
- Yazd UniversityIR7 papers
20 papers · 1 filter
Emergent Universe in f(Q) gravity theories
Hamid Shabani, Avik De, Tee-How Loo
One resolution of the ancient cosmic singularity, i.e., the Big Bang Singularity (BBS), is to assume an inflationary stage preceded by a long enough static state in which the unive…
Late time cosmological solutions in gravity in a viscous Universe
Hamid Shabani, Norman Cruz, Amir Hadi Ziaie
Considering the condition on conservation of energy momentum tensor (EMT), we study late time cosmological solutions in the context of gravity (where and …
Gravitational Collapse without Singularity Formation in Brans-Dicke Theory
A. H. Ziaie, H. Shabani, H. Moradpour
In the present work we study collapse process of a homogeneous and isotropic fluid in Brans-Dicke ({BD}) theory with non-vanishing spacetime torsion. In this theory, torsion can be…
A non-singular bouncing cosmology in gravity
J. K. Singh, Shaily, Akanksha Singh +2
We investigate a bounce realization in the framework of higher order curvature in modified theory of gravity. We perform a detailed analysis of the cosmological paramete…
Phase-space analysis of a novel cosmological model in theory
Hamid Shabani, Avik De, Tee-How Loo
The vanishing affine connections have been used solely while adopting the modified gravity theory to the cosmology. Consequently, researchers could not get beyond what is al…
Einstein Static Universe and its Stability in Generalized Rastall Gravity
Hamid Shabani, Amir Hadi Ziaie, Hooman Moradpour
The Einstein static (ES) state is a good candidate for describing the very early universe in terms of a regular cosmological model in which the Big Bang singularity is avoided. In…
The galaxy rotation curves in the modified gravity formalism
H. Shabani, P. H. R. S. Moraes
Astronomical data have shown that the galaxy rotation curves are mostly flat in the far distance of the galactic cores, which reveals the insufficiency of our knowledges about how…
A dynamical system representation of generalized Rastall gravity
Hamid Shabani, Hooman Moradpour, Amir Hadi Ziaie
In this work we study the phase-space analysis of generalized Rastall gravity (GRG) which has recently been introduced as a modification to the original version of Rastall gravity…
Constraining the generalized uncertainty principle with neutron interferometry
Fabiano Feleppa, Hooman Moradpour, Christian Corda +1
The non-zero minimal length arises in various theories of gravity, leading to the so-called generalized uncertainty principle (GUP). In this short paper we analyze the GUP effects…
Hubble tension bounds the GUP and EUP parameters
S. Aghababaei, H. Moradpour, Elias C. Vagenas
In recent years the discrepancy in the value of the Hubble parameter has been growing. Recently, there are works supporting the proposal that the uncertainty principles can solve t…
Non-minimal coupling inspires the Dirac cosmological model
Hooman Moradpour, Hamid Shabani, Amir Hadi Ziaie +1
In the framework of the generalized Rastall theory (GRT), we study the ability of a non-minimal coupling between geometry and matter fields in order to provide a setting which allo…
A connection between Rastall-type and f(R, T) gravities
Hamid Shabani, Amir Hadi Ziaie
Recently a Lagrangian formulation for Rastall Gravity (RG) has been proposed in the framework of f(R, T) gravity. In the present work we obtain Lagrangian formulation for the stand…
Cosmological aspects of a hyperbolic solution in gravity
Ritika Nagpal, J. K. Singh, A. Beesham +1
This article deals with a cosmological scenario in gravity for a flat FLRW model of the universe. We consider the function as which starts with…
Static Vacuum Solutions on Curved Spacetimes with Torsion
Hamid Shabani, Amir Hadi Ziaie
The Einstein-Cartan-Kibble-Sciama ({\sf ECKS}) theory of gravity naturally extends Einstein\rq{}s general relativity ({\sf GR}) to include intrinsic angular momentum (spin) of matt…
Bouncing cosmological solutions from f(R,T) gravity
Hamid Shabani, Amir Hadi Ziaie
In this work we study classical bouncing solutions in the context of gravity in a flat {\sf FLRW} background using a perfect fluid as the on…
Interpretation of gravity in terms of a conserved effective fluid
Hamid Shabani, Amir Hadi Ziaie
In the present work we introduce a novel approach to study gravity theory from a different perspective. Here, denotes the trace of energy-momentum te…
Late-time cosmological evolution of a general class of f(R, T) gravity with minimal curvature-matter coupling
Hamid Shabani, Amir Hadi ziaie
In this work, we study the late-time cosmological solutions of f(R,T)=g(R)+h(-T) models assuming that the conservation of the energy-momentum tensor (EMT) is violated. We perform o…
Consequences of energy conservation violation: Late time solutions of subclass of gravity using dynamical system approach
Hamid Shabani, Amir Hadi Ziaie
Very recently, the authors of [PRL {\bf 118} (2017) 021102] have shown that violation of energy-momentum tensor (EMT) could result in an accelerated expansion state via appearing a…
Stability of the Einstein static Universe in gravity
Hamid Shabani, Amir Hadi Ziaie
The Einstein static (ES) universe has played a major role in various emergent scenarios recently proposed in order to cure the problem of initial singularity of the standard model…
Cosmological consequences and statefinder diagnosis of a non-interacting generalized Chaplygin gas in gravity
Hamid Shabani
In this paper, we investigate cosmological consequences of a scenario for recently reported accelerated expansion of the Universe, in which the generalized Chaplygin gas (GCG) alon…