15 citations · 58 across the 12 of their papers we have counts for
13 papers
Analysis of Phantom Cosmology With Different Potentials: Inflation and Isotropization
Behzad Tajahmad, Hossein Kheiri
We investigate inflationary dynamics and isotropization in a phantom-field model with five families of potentials on Bianchi I, Bianchi III, and Kantowski-Sachs backgrounds. First,…
Quantum Quintom Cosmology
Behzad Tajahmad
This work applies the principles of quantum cosmology to examine models incorporating a quintom field. Specifically, three distinct models are analyzed: a simplified toy model, a m…
Inflation and Isotropization in Quintom Cosmology
Behzad Tajahmad
This paper studies inflation and isotropization in the quintom model in the Bianchi I, Bianchi III, and Kantowski-Sachs backgrounds. First, we investigate inherent properties and g…
Formulating and indirectly proving the quantum fluctuations of space-time and a justification for applying fractional quantum gravity
Behzad Tajahmad
It is well known that in quantum gravity, the very geometry of space and time is subject to continual fluctuation. The mathematical formulation for this old theory is still lacking…
Phase space of multi-fluid universe in -gravity and some enhancements for the oscillating interaction model
Behzad Tajahmad, Hossein Motavalli
Recently, a Friedmann-Robertson-Walker universe filled with various cosmological fluids has been considered by S.D. Odintsov et al. in [30] from phase space vantage point where var…
Raychaudhuri-based reconstruction of anisotropic Einstein-Maxwell equation in 1+3 covariant formalism of -gravity
Behzad Tajahmad
Recently, a new strategy to the reconstruction of -gravity models based on the Raychaudhuri equation has been suggested by Choudhury et al. In this paper, utilizing this meth…
Late-time-accelerated expansion arisen from gauge fields in an anisotropic background and a fruitful trick for Noether's approach
Behzad Tajahmad
In this paper, a modified teleparallel gravity action containing a coupling between a scalar field potential and magnetism, in anisotropic and homogeneous backgrounds, is investiga…
Reconstruction of gravity in homogeneous backgrounds
Behzad Tajahmad
A technique for the reconstruction of the potential for a scalar field in cosmological models based on induced gravity has recently been developed by Alexander Y. Kamenshchik, Ales…
A new approach to the analysis of the reconstruction methods, phase space, and exact solutions of the alternative theories of gravity
Behzad Tajahmad
A new approach, " Method", to the analysis of the reconstruction methods, phase space, and exact solutions of the alternative theories of gravity is s…
Studying the Intervention of an Unusual Term in Gravity via Noether Symmetry
Behzad Tajahmad
As usual, we observe an unknown coupling function, i.e. , with a function of torsion and also curvature, i.e. and , generally depending on a scalar field. In $f(…
Unified cosmology with Non-minimally coupled scalar-tensor theory of gravity
Behzad Tajahmad, Abhik Kumar Sanyal
Unlike Noether symmetry, a metric independent general conserved current exits for non-minimally coupled scalar-tensor theory of gravity, if the trace of the energy momentum tensor…
Exact solutions of an anisotropic universe in a modified teleparallel gravity model via the Noether and B.N.S. approaches
Behzad Tajahmad
In this paper, we present the Noether symmetries of locally rotationally symmetric Bianchi type I (LRS BI), an anisotropic model, in the context of the teleparallel gravity. We stu…
Noether Symmetries of a Modified Model in Teleparallel Gravity and a New Approach for Exact Solutions
Behzad Tajahmad
In this paper, we have presented the Noether symmetries of flat FRW spacetime in the context of a new action in Teleparallel Gravity which we construct it based on version.…