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SUMMARY:William H. Kinney (University at Buffalo)
DTSTART:20200504T220000Z
DTEND:20200504T230000Z
DTSTAMP:20260423T021000Z
UID:CosmoConB/3
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CosmoConB/3/
 ">Eternal Hilltop Inflation</a>\nby William H. Kinney (University at Buffa
 lo) as part of CosmoConβ - Cosmology from Home\n\n\nAbstract\nEternal inf
 lation has long been known to be generic in large-field inflation models\,
  where one or more scales in the problem exceed the Planck scale. I consid
 er the case of small-field inflation\, in the limit of hilltop-type potent
 ials\, where the region in field space admitting eternal inflation is expo
 nentially small. In particular\, I consider a simplified model of the hill
 top in which the evolution of the inflaton is at all times dominated by qu
 antum evolution instead of classical slow roll\, and show that eternal inf
 lation occurs even when all scales in the potential are arbitrarily far be
 low the Planck scale. This provides a simple and clear demonstration that 
 quantum effects at energy scales very small relative to the Planck scale c
 an have an order-unity or larger effect on the global structure of spaceti
 me. I comment on such models in light of recently proposed "Swampland" con
 jectures.\n\nVideo of Talk: <a href="https://www.youtube.com/watch?v=qL3m4
 M4IZi4">https://www.youtube.com/watch?v=qL3m4M4IZi4</a>\n\nRelevant Papers
 :<br>\n<a href="https://arxiv.org/abs/1601.08140">[1601.08140] Eternal Hil
 ltop Inflation</a>\, by Gabriela Barenboim\, William H. Kinney\, Wan-Il Pa
 rk<br> \n<a href="https://arxiv.org/abs/1811.11698">[1811.11698] Eternal I
 nflation and the Refined Swampland Conjecture</a>\, by William H. Kinney\n
LOCATION:https://researchseminars.org/talk/CosmoConB/3/
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