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Vahid Kamali

Vahid Kamali

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

Research

Title
Warm pseudoscalar inflation
Type
JournalPaper
Keywords
pseudoscalar warm inflation
Year
2019
Journal PHYSICAL REVIEW D
DOI
Researchers Vahid Kamali

Abstract

n this paper, we introduce an action for the warm inflation model with direct coupling between the pseudoscalar field and massless SUð2Þ gauge fields. The potential of the inflaton is protected against the thermal corrections in a thermal bath of gauge fields even with strong direct interaction between the inflaton and light fields. The dissipation parameter of this model is approximately constant in the high-dissipative regime. In this regime, the model is compatible with observational data and non-Gaussianity is in the order ε φ of the Hubble slow-roll parameter 1þQ even in the f < M p limit.