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Jafar Sadeghi

Academic rank: Professor
ORCID:
Education: PhD.
ScopusId:
Faculty: Science
Address:
Phone: 9111125092

Research

Title
Swampland dS conjecture in mimetic f (R, T) gravity
Type
JournalPaper
Keywords
mimetic f (R, T) gravity, Lagrange multiplier, swampland conjecture
Year
2022
Journal COMMUNICATIONS IN THEORETICAL PHYSICS
DOI
Researchers saeed noori gashti ، Jafar Sadeghi ، S Upadhyay ، m.r. Alipour

Abstract

n this paper, we study a theory of gravity called mimetic f(R, T) in the presence of swampland dS conjecture. For this purpose, we introduce several inflation solutions of the Hubble parameter H(N) from f(R, T) = R + δT gravity model, in which R is Ricci scalar, and T denotes the trace of the energy–momentum tensor. Also, δ and N are the free parameter and a number of e-fold, respectively. Then we calculate quantities such as potential, Lagrange multiplier, slow-roll, and some cosmological parameters such as ns and r. Then we challenge the mentioned inflationary model from the swampland dS conjecture. We discuss the stability of the model and investigate the compatibility or incompatibility of this inflationary scenario with the latest Planck observable data