Future CMB surveys are forecast to tighten the dissipation parameter of quartic warm inflation by up to an order of magnitude and to exclude the cubic dissipation model under a null tensor-to-scalar ratio.
Trans-Planckian censorship and other swampland bothers addressed in warm inflation
1 Pith paper cite this work. Polarity classification is still indexing.
abstract
The implications of the recently proposed Trans-Planckian censorship conjecture (TCC) are analyzed in the context of warm inflation. It is found that for a single-stage accelerated expansion the constraints imposed by the censorship are roughly the same as for cold inflation. Next, we study how a two-stage inflationary expansion with an intermediate radiation-dominated era can alleviate the bounds imposed by the censorship. For a demonstrative toy model we found $r<10^{-23}$, but can be $r<10^{-5}$ for a weaker form of TCC for the later stages of expansion, while still satisfying the other swampland conditions.
citation-role summary
citation-polarity summary
fields
astro-ph.CO 1years
2024 1verdicts
CONDITIONAL 1roles
background 1polarities
unclear 1representative citing papers
citing papers explorer
-
Stage IV CMB forecasts for warm inflation
Future CMB surveys are forecast to tighten the dissipation parameter of quartic warm inflation by up to an order of magnitude and to exclude the cubic dissipation model under a null tensor-to-scalar ratio.