2025 : 4 : 22
Vahid Kamali

Vahid Kamali

Academic rank: Associate Professor
ORCID:
Education: PhD.
ScopusId: 36657252800
HIndex:
Faculty: Faculty of Science
Address:
Phone: 08138388856

Research

Title
Tachyon Warm Intermediate and Logamediate Inflation in the Brane World Model in the Light of Planck Data
Type
JournalPaper
Keywords
Tachyon inflation warm inflation Planck data
Year
2016
Journal Advances in High Energy Physics
DOI
Researchers Vahid Kamali ، mohammad reza Setare

Abstract

Tachyon inflationary universe model on the brane in the context of warm inflation is studied. In slow-roll approximation and in longitudinal gauge, we find the primoradial perturbation spectrums for this scenario. We also present the general expressions of the tensor-scalar ratio, scalar spectral index and its running. We develop our model by using exponential potential, the characteristics of this model are calculated in great details. We also study our model in the context of intermediate (where scale factor expands as: $a=a_0\exp(At^f)$) and logamediate (where the scale factor expands as: $a=a_0\exp(A[\ln t]^{\nu})$) models of inflation. In these two sectors, dissipative parameter is considered as a constant parameter and a function of tachyon field. Our model is compatible with observational data. The parameters of the model are restricted by Planck data.