42 citations · 290 across the 27 of their papers we have counts for
4 papers · 1 filter
Inflation in String Field Theory
Haidar Sheikhahmadi, Mir Faizal, Ali Aghamohammadi +2
In this paper, we analyze the inflationary cosmology using string field theory. This is done by using the zero level contribution from string field theory, which is a non-local tac…
Irreversible thermodynamical description of warm inflationary cosmological models
Tiberiu Harko, Haidar Sheikhahmadi
We investigate the interaction between scalar fields and radiation in the framework of warm inflationary models by using the irreversible thermodynamics of open systems with matter…
An exact solution for a force-free field electrodynamics accretion disk surrounding a perturbed charged black hole
Haidar Sheikhahmadi
Recently the first real image of the supermassive black hole at the heart of the galaxy M87 successfully has been captured. To explain the behavior of both the observed powerful je…
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…