Regular Article - Theoretical Physics
Thermal, trapped and chromo-natural inflation in light of the swampland criteria and the trans-Planckian censorship conjecture
School of Physics and Astronomy, University of Edinburgh, EH9 3FD, Edinburgh, UK
2 Department of Physics, McGill University, H3A 2T8, Montreal, QC, Canada
3 Department of Physics, Bu-Ali Sina (Avicenna) University, 65178-016016, Hamedan, Iran
4 School of Physics, Insitute for Research in Fundamental Sciences (IPM), 19538-33511, Tehran, Iran
5 Departamento de Física Teórica, Universidade do Estado do Rio de Janeiro, 20550-013, Rio de Janeiro, RJ, Brazil
Accepted: 15 May 2021
Published online: 25 May 2021
We consider thermal, trapped and chromo-natural inflation in light of the swampland criteria and the Trans-Planckian Censorship Conjecture (TCC). Since thermal inflation occurs at energies low compared to those of Grand Unification, it is consistent with the TCC, and it is also consistent with the refined swampland conditions. Trapped and chromo-natural inflation are candidates for primordial (high energy scale) inflation. Since in both of these scenarios there are effective damping terms in the scalar field equation of motion, the models can easily be consistent with the swampland criteria. The TCC, on the other hand, constrains these scenarios to only take place at low energies.
© The Author(s) 2021
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