Intermediate class of warm pseudoscalar inflation

Saeid Ebrahimi (Department of Physics, Bu-Ali Sina (Avicenna) University, Hamedan, 65178 016016, Iran) ; Vahid Kamali (Department of Physics, Bu-Ali Sina (Avicenna) University, Hamedan, 65178 016016, Iran) ; Asma Alaei (Department of Physics, Bu-Ali Sina (Avicenna) University, Hamedan, 65178 016016, Iran)

High dissipative regime of warm pseudoscalar inflation model (Kamali in Phys Rev D 100:043520, arXiv:1901.01897 [gr-qc], 2019) with an approximately constant value of dissipation parameter Q is studied. Intermediate solution of the scale-factor related to the accelerated expansion of the Universe which is rolled out by observational data in the context of standard (cold) model of inflation is used. There is a region of free parameters phase-space of the model which is interestingly compatible with recent observational data. It is discussed that the model is also compatible with the swampland criteria in a broad range of parameters phase-space and TCC in a limited area of parameters.

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Published on:
30 June 2021
Publisher:
Springer
Published in:
European Physical Journal C , Volume 81 (2021)
Issue 6
Pages 1-6
DOI:
https://doi.org/10.1140/epjc/s10052-021-09367-3
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

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