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SUMMARY:Towards a thermally complete study of inflationary predictions
DTSTART:20231204T140000
DTEND:20231204T150000
DTSTAMP:20260507T183151Z
UID:a3b32d956f6fa86d7ac78331d46f9754ebba718dd91c493e86463084
CATEGORIES:Conferences - Seminars
DESCRIPTION:Simona Procacci\n\n\n\n\n\n\n\n\n\n\n\nThe model of cosmologic
 al inflation explains how the primordial temperature perturbations observe
 d at the CMB may originate from vacuum fluctuations during an early epoch 
 of accelerated expansion of the universe. On the experimental side\, new p
 robes of inflation are expected by the detection of a gravitational wave b
 ackground in the next decades. A substantial contribution to the gravitati
 onal wave signal may come from the thermal processes that lead to a heatin
 g-up period after inflation. However\, a theoretical description of the tr
 ansition from a vacuum-dominated to a radiation-dominated universe is by t
 oday neither realistic nor robust. We derive a framework to embed the infl
 aton field within a thermal plasma and present a concrete example for a vi
 able inflation scenario\, capable of heating the universe dynamically. The
  amplitude of the corresponding gravitational wave signal depends peculiar
 ly on the plasma constituents and the interactions between them.\n\n\n\n\n
 \n\n\n\n\n\n\n\n\n \n
LOCATION:BSP 727 https://plan.epfl.ch/?room==BSP%20727 https://epfl.zoom.u
 s/j/69362612859
STATUS:CONFIRMED
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