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SUMMARY:Gr.IV seminar: Angelo Caravano - "A Tale of Cosmic Butterflies: no
 n-perturbative insights into the small-scale physics of inflation"
DTSTART:20260506T140000Z
DTEND:20260506T150000Z
DTSTAMP:20260506T003700Z
UID:indico-event-50938@agenda.infn.it
DESCRIPTION:The small-scale physics of inflation can leave observational s
 ignatures in the gravitational-wave background and may also generate primo
 rdial black holes as a dark matter candidate. These phenomena often involv
 e a significant enhancement of inflationary fluctuations\, potentially lea
 ding to a breakdown of standard perturbation theory. In this talk\, I will
  discuss how lattice simulations provide a tool to address these challenge
 s. Focusing on single-field inflationary models with deviations from slow 
 roll\, I will show how nonlinear physics can significantly alter the infla
 tionary dynamics and their predictions\, even in regimes where perturbatio
 n theory is typically assumed to be valid. This highlights the role of lat
 tice simulations in probing inflation with current and future gravitationa
 l-wave experiments.\n\nhttps://agenda.infn.it/event/50938/
LOCATION:0M04
URL:https://agenda.infn.it/event/50938/
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