Laine, M.; Procacci, S. (2021). Minimal warm inflation with complete medium response. Journal of cosmology and astroparticle physics, 2021(06), 031. Institute of Physics Publishing IOP 10.1088/1475-7516/2021/06/031
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If a homogeneous field evolves within a medium, with the latter gradually pick- ing up a temperature, then the friction felt by the field depends on how its evolution rate compares with medium time scales. We suggest a framework which permits to incorporate the contributions from all medium time scales. As an example, we illustrate how warm axion inflation can be described by inputting the retarded pseudoscalar correlator of a thermal Yang-Mills plasma. Adopting a semi-realistic model for the latter, and starting the evolution at almost vanishing temperature, we show how the system heats up and then enters the “weak” or “strong” regime of warm inflation. Previous approximate treatments are scrutinized.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) 08 Faculty of Science > Institute of Theoretical Physics |
UniBE Contributor: |
Laine, Mikko Sakari, Procacci, Simona |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1475-7516 |
Publisher: |
Institute of Physics Publishing IOP |
Language: |
English |
Submitter: |
Esther Fiechter |
Date Deposited: |
22 Jul 2021 08:51 |
Last Modified: |
05 Dec 2022 15:52 |
Publisher DOI: |
10.1088/1475-7516/2021/06/031 |
ArXiv ID: |
2102.09913 |
BORIS DOI: |
10.48350/157676 |
URI: |
https://boris.unibe.ch/id/eprint/157676 |
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