42 citations · 629 across the 34 of their papers we have counts for
34 papers
Wormhole solution in modified teleparallel-Rastall gravity and energy conditions
N. Nazavari, Kh. Saaidi, Abolhassan Mohammadi
The possibility of static and spherically symmetric traversable wormhole solution in modified teleparallel Rastall gravity (MTRG) in a non-diagonal tetrad is investigated. Rastall…
Exploring new subclass of k-inflation: tachyon inflation in gravity model
Abolhassan Mohammadi, Fardin Kheirandish
It is explained that any scalar field in gravity model could present a new subclass of the k-essence model for inflation. While the case of the quintessence has been studi…
Constant-roll inflation driven by holographic dark energy
Abolhassan Mohammadi
The scenario of constant-roll inflation is investigated assuming that it is caused by holographic dark energy with energy density . The energy density with varyin…
Holographic warm inflation
Abolhassan Mohammadi
The increasing interest in studying the role of holographic dark energy in the evolution of the very early universe motivates us to study it for the scenario of warm inflation. Due…
The tripartite quantum-memory-assisted entropic uncertainty relation and upper bound on shareability of quantum discord
Hazhir Dolatkhah, Abolhassan Mohammadi, Soroush Haseli
Quantum discord and quantum uncertainty are two important features of the quantum world. In this work, the relation between entropic uncertainty relation and the shareability of qu…
Null geodesic of Schwarzschild AdS with Gaussian matter distribution
Abolhassan Mohammadi, N. Doustimotlagh, Tayeb Golanbari +2
One of the best ways to understand the gravitation of a massive object is by studying the photon's motion around it. We study the null geodesic of a regular black hole in anti-de S…
Tsallis holographic dark energy for inflation
Abolhassan Mohammadi, Tayeb Golanbari, Kazuharu Bamba +1
The application of holographic principle in very early time is studied. The consideration of the principle in the late-time evolution will be a good motivation to study its role at…
Brane inflation and Trans-Planckian censorship conjecture
Abolhassan Mohammadi, Tayeb Golanbari, Jamil Enayati
The constraint of trans-Planckian censorship conjecture on brane inflation model is considered. The conjectures put an upper bound on the main parameter including temperature, infl…
Revisiting Scalar Tensor inflation by swampland criteria and Reheating
Abolhassan Mohammadi, Tayeb Golanbari, Jamil Enayati +2
The scenario of the slow-roll inflation is studied in the frame of the scalar-tensor theory of gravity where the scalar field has a non-minimal coupling to the geometric part. Afte…
Brane inflation: swampland criteria, TCC, and reheating predictions
Abolhassan Mohammadi, Tayeb Golanbari, Salah Nasri +1
We consider inflation in a five -dimensional space time with the inflaton field confined to live on a brane world. In this scenario, we study different types of potentials for the…
Brane Constant-roll Inflation
Abolhassan Mohammadi, Tayeb Golanbari, Salah Nasri +1
The scenario of constant-roll inflation in the frame of the RSII brane gravity model is considered. Based on the scenario, the smallness of the second slow-roll parameter is releas…
Warm Tachyon Inflation and Swampland Criteria
Abolhassan Mohammadi, Tayeb Golanbari, Haidar Sheikhahmadi +4
The scenario of two components warm tachyon inflation is considered where the tachyon field plays the role of inflaton and drives inflation. During inflation, the tachyon scalar fi…
Beta-function formalism for k-essence constant-roll inflation
Abolhassan Mohammadi, Tayeb Golanbari, Khaled Saaidi
The beta function formalism is being used to study the constant-roll inflation in the k-essence model. Assuming the second slow-roll parameter as a constant leads to a first-order…
Constraining chameleon field driven warm inflation with Planck 2018 data
Haidar Sheikhahmadi, Abolhassan Mohammadi, Ali Aghamohammadi +5
We investigate warm inflationary scenario in which the accelerated expansion of the early Universe is driven by chameleon-like scalar fields. Due to the non-minimal coupling betwee…
Observational constraints on DBI constant-roll inflation
Abolhassan Mohammadi, Tayeb Golanbari, Khaled Saaidi
Using the constant-roll approach, DBI inflationary scenario will be studied and it is sought to compare the result with observational data. By considering the cosmological perturba…
Constant-roll approach to non-canonical inflation
Abolhassan Mohammadi, Khaled Saaidi, Haidar Sheikhahmadi
The scenario of constant-roll inflation is studied where the inflaton is a scalar field with modified kinetic term, known as non-canonical scalar field. This modification leads to…
Tachyon constant-roll inflation
A. Mohammadi, Kh. Saaidi, T. Golanbari
The constant-roll inflation is studied where the inflaton is taken as a tachyon field. Since in this approach the second slow-roll parameter is assumed to be of order one instead o…
Viscous Warm Inflation: Hamilton-Jacobi formalism
L. Akhtari, A. Mohammadi, K. Sayar +1
Using Hamilton-Jacobi formalism, The scenario of warm inflation with viscous pressure is considered. The formalism gives a way of computing the slow-rolling parameters without extr…
Intermediate inflation driven by DBI scalar field
N. Nazavari, A. Mohammadi, Z. Ossoulian +1
Picking out DBI scalar field as inflation, the slow-rolling inflationary scenario is studied by attributing an exponential time function to scale factor; known as intermediate infl…
Light of Planck-2015 on Non-Canonical Inflation
Kh. Saaidi, A. Mohammadi, T. Golanbari
Slow-roll inflationary scenario is considered in non-canonical scalar field model supposing a power-law function for kinetic term, and using two formalisms. In the first approach,…
Hamilton-Jacobi formalism to warm inflationary scenario
K. Sayar, A. Mohammadi, L. Akhtari +1
Hamilton-Jacobi formalism as a powerful method is being utilized to reconsider warm inflationary scenario, where the scalar field as the main component deriving inflation interacts…
Inflationary universe in the presence of a minimal measurable length
A. Mohammadi, Ahmed Farag Ali, T. Golanbari +3
In this paper, we will study the effect of having a minimum measurable length on inflationary cosmology. We will analyze the inflationary cosmology in the Jacobson approach. In thi…
Hamilton-Jacobi Formalism for Tachyon Inflation
A. Aghamohammadi, A. Mohammadi, T. Golanbari +1
Tachyon inflation is reconsidered by using the recent observational data obtained from Planck-2013 and BICEP2. The Hamilton-Jacobi formalism is picked out as a desirable approach i…
Brane inflation driven by noncanonical scalar field
T. Golanbari, A. Mohammadi, Kh. Saaidi
In this work, we are going to study the inflationary era of the Universe evolution by using second type of Randall-Sundrum model (RS-II) braneworld gravity. It is supposed that the…