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SUMMARY:Eemeli Tomberg (NICPB\, Tallinn)
DTSTART:20200415T220000Z
DTEND:20200415T230000Z
DTSTAMP:20260423T021100Z
UID:CosmoConB/5
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CosmoConB/5/
 ">Preheating in Higgs-like Palatini Inflation</a>\nby Eemeli Tomberg (NICP
 B\, Tallinn) as part of CosmoConβ - Cosmology from Home\n\n\nAbstract\nI 
 discuss preheating in a plateau model similar to Higgs inflation\, but wit
 h the Palatini formulation of general relativity. Due to the shape of the 
 inflaton potential\, the oscillation amplitude of the inflaton field stays
  almost constant for many oscillations\, so that the field returns repeate
 dly to the plateau. This has drastic implications on reheating dynamics: t
 he leading channel of particle production is a tachyonic instability of th
 e inflaton field itself. This leads to an almost instantaneous reheating. 
 \n\nVideo of Talk: <a href="https://www.youtube.com/watch?v=xWskD0Pmcqo">h
 ttps://www.youtube.com/watch?v=xWskD0Pmcqo</a>\n\nTalk based on <a href="h
 ttps://arxiv.org/abs/1902.10148">[1902.10148] Preheating in Palatini Higgs
  inflation</a>\, by Javier Rubio\, Eemeli S. Tomberg\n
LOCATION:https://researchseminars.org/talk/CosmoConB/5/
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