137 citations · 1.4k across the 56 of their papers we have counts for
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Null Fluid collapse in Rastall theory of gravity
Amir H. Ziaie, Yaser Tavakoli
A Vaidya spacetime is considered for gravitational collapse of a type II fluid in the context of Rastall theory of gravity. For a linear equation of state (EoS) for the fluid profi…
Black hole solutions and Euler equation in Rastall and generalized Rastall theories of gravity
H. Moradpour, Y. Heydarzade, C. Corda +2
Focusing on the special case of generalized Rastall theory, as a subclass of the non-minimal curvature-matter coupling theories in which the field equations are mathematically simi…
Wormholes in Poincarè gauge theory of gravity
Amir Hadi Ziaie, Christian Corda
In the present work, we {study} static spherically symmetric solutions representing wormhole configurations in Poincarè gauge theory ({\sf PGT}). The gravitational sector of the La…
Effects of Rastall parameter on perturbation of dark sectors of the Universe
A. H. Ziaie, H. Shabani, S. Ghaffari
In recent years, Rastall gravity is undergoing a considerable surge in popularity. This theory purports to be a modified gravity theory with a non-conserved energy-momentum tensor…
Tsallis holographic dark energy in Fractal Universe
S. Ghaffari, E. Sadri, A. H. Ziaie
We study the cosmological consequences of interacting Tsallis holographic dark energy model in the framework of the fractal universe, in which, the Hubble radius is considered as t…
The generalized and extended uncertainty principles and their implications on the Jeans mass
H. Moradpour, A. H. Ziaie, S. Ghaffari +1
The generalized and extended uncertainty principles affect the Newtonian gravity and also the geometry of the thermodynamic phase space. Under the influence of the latter, the ener…
Stability of the Einstein static Universe in Einstein-Cartan-Brans-Dicke gravity
Hamid Shabani, Amir Hadi Ziaie
In the present work we consider the existence and stability of Einstein static {\sf ES} Universe in Brans-Dicke ({\sf BD}) theory with non-vanishing spacetime torsion. In this theo…
Traversable wormholes in Einsteinian cubic gravity
Mohammad Reza Mehdizadeh, Amir Hadi Ziaie
In the present work we investigate wormhole configurations described by a constant redshift function in Einstein-Cubic gravity ({\sf ECG}). We derive analytical wormhole geometries…
Inflation in the Rényi cosmology
H. Moradpour, A. H. Ziaie, V. B. Bezerra +1
The description of the accelerated phases for the current and primordial cosmos has been obtained in the framework of Rényi cosmology. The results show that corrections to the Frie…
The extended uncertainty principle inspires the Rényi entropy
H. Moradpour, C. Corda, A. H. Ziaie +1
We use the extended uncertainty principle (EUP) in order to obtain the Rényi entropy for a black hole (BH). The result implies that the non-extensivity parameter, appeared in the R…
Gravitational Collapse in Rastall Gravity
A. H. Ziaie, H. Moradpour, S. Ghaffari
We study spherically symmetric gravitational collapse of a homogeneous perfect fluid in Rastall gravity. Considering a linear equation of state (EoS) for the fluid profiles, we exa…
Black hole thermodynamics in the Sharma-Mittal generalized entropy formalism
S. Ghaffari, H. Moradpour, A. H. Ziaie +3
Using the Sharma-Mittal entropy, we study some properties of the Schwarzschild and Schwarzschild-de Sitter black holes. The results are compared with those obtained by attributing…