27 citations · 85 across the 6 of their papers we have counts for
6 papers
Quantum Cosmology in Theory with Schutz's Perfect Fluid
Serkan Doruk Hazinedar, Yaghoub Heydarzade, Shahram Jalalzadeh
The theory of gravity extends general relativity (GR) by allowing the gravitational Lagrangian to depend on both the Ricci scalar and the trace of the energy-momentum…
The shadows of quantum gravity on Bell's inequality
Hooman Moradpour, Shahram Jalalzadeh, Hamid Tebyanian
This study delves into the validity of quantum mechanical operators in the context of quantum gravity, recognizing the potential need for their generalization. A primary objective…
Collapse and dispersal of a homogeneous spin fluid in Einstein-Cartan theory
Mostafa Hashemi, Shahram Jalalzadeh, Amir Hadi Ziaie
In the present work, we revisit the process of gravitational collapse of a spherically symmetric homogeneous dust fluid which is known as the Oppenheimer-Snyder (OS) model [1]. We…
Localization of gravity in brane world with arbitrary extra dimensions
A. M. Yazdani, S. Jalalzadeh, K. Atazadeh
We study the induced 4-dimensional linearized Einstein field equations in an m-dimensional bulk space by means of a confining potential. It is shown that in this approach the mass…
Signature change from Schutz's canonical quantum cosmology and its classical analogue
P. Pedram, S. Jalalzadeh
We study the signature change in a perfect fluid Friedmann-Robertson-Walker quantum cosmological model. In this work the Schutz's variational formalism is applied to recover the no…
Non-commutative multi-dimensional cosmology
N. Khosravi, S. Jalalzadeh, H. R. Sepangi
A non-commutative multi-dimensional cosmological model is introduced and used to address the issues of compactification and stabilization of extra dimensions and the cosmological c…