PPT Slide
Supercooled inflation: inflaton field is isolated
- But interactions are more plausible: Warm Inflation
Implies we need to calculate:
Relevant quantum mechanical processes (dissipation)
Already studied in Condensed Matter Physics:
Caldeira-Leggett model, Fermi-Ulam-Pasta model.
In Quantum Field Theory (QFT) generic couplings
of fields yield dissipation.
In restricted cases, QFT wam inflation solutions have been
obtained - confirms that warm inflation works!
Considerable exploration remains.