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Swampland, axions, and minimal warm inflation

Das, S and Goswami, G and Krishnan, C (2020) Swampland, axions, and minimal warm inflation. In: Physical Review D, 101 (10).

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Official URL: https://dx.doi.org/10.1103/PhysRevD.101.103529


Warm inflation has been noted previously as a possible way to implement inflationary models compatible with the dS swampland bounds. But often in these discussions, the heat bath dynamics are kept largely unspecified. We point out that the recently introduced minimal warm inflation K. V. Berghaus, P. W. Graham, and D. E. Kaplan, J. Cosmol. Astropart. Phys. 03 (2020) 034JCAPBP1475-751610.1088/1475-7516/2020/03/034, where an axionic coupling of the inflaton leads to an explicit model for the thermal bath, yields models of inflation that can easily fit cosmological observations while satisfying de Sitter swampland bounds, as well as the swampland distance bound and trans-Planckian censorship.

Item Type: Journal Article
Publication: Physical Review D
Publisher: American Physical Society
Additional Information: Copy right for this article belongs to American Physical Society
Department/Centre: Division of Physical & Mathematical Sciences > Centre for High Energy Physics
Date Deposited: 29 Sep 2020 06:17
Last Modified: 29 Sep 2020 06:17
URI: http://eprints.iisc.ac.in/id/eprint/65729

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