326 citations · 2.3k across the 93 of their papers we have counts for
9 papers · 1 filter
Stabilization of Compactification Volume In a Noncommutative Mini-Super-Phase-Space
N. Khosravi, H. R. Sepangi, M. M. Sheikh-Jabbari
We consider a class of generalized FRW type metrics in the context of higher dimensional Einstein gravity in which the extra dimensions are allowed to have different scale factors.…
Modified gravity inspired DGP brane cosmology
K. Atazadeh, H. R. Sepangi
We consider a DGP brane scenario where a scalar field is present on the brane through the introduction of a scalar potential, itself motivated by the notion of modified gravity. Th…
Stabilization of test particles in Induced Matter Kaluza-Klein theory
S. Jalalzadeh, B. Vakili, F. Ahmadi +1
The stability conditions for the motion of classical test particles in an -dimensional Induced Matter Kaluza-Klein theory is studied. We show that stabilization requires a va…
Accelerating universe in brane gravity with a confining potential
M. Heydari-Fard, M. Shirazi, S. Jalalzadeh +1
We construct the Einstein field equations on a 4-dimensional brane embedded in an -dimensional bulk where the matter fields are confined to the brane by means of a confining pot…
Lorentz violation in brane cosmology, accelerated expansion and fundamental constants
F. Ahmadi, S. Jalalzadeh, H. R. Sepangi
The notion of Lorentz violation in four dimensions is extended to a 5-dimensional brane-world scenario by utilizing a dynamical vector field assumed to point in the bulk direction,…
Compactification and signature transition in Kaluza-Klein spinor cosmology
B. Vakili, S. Jalalzadeh, H. R. Sepangi
We study the classical and quantum cosmology of a 4+1-dimensional space-time with a non-zero cosmological constant coupled to a self interacting massive spinor field. We consider a…
Monte Carlo simulation of size-effects on thermal conductivity in a 2-dimensional Ising system
M. Neek-Amal, R. Moussavi, H. R. Sepangi
A model based on microcanonical Monte Carlo method is used to study the application of the temperature gradient along a two-dimensional (2D) Ising system. We estimate the system si…
Accelerated expansion in modified gravity with a Yukawa-like term
K. Atazadeh, H. R. Sepangi
We discuss the Palatini formulation of modified gravity including a Yukawa-like term. It is shown that in this formulation, the Yukawa term offers an explanation for the current ex…
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…