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SUMMARY:Non-perturbative evolution of the curvature perturbation during in
 flation.
DTSTART;VALUE=DATE-TIME:20260520T094000Z
DTEND;VALUE=DATE-TIME:20260520T101000Z
DTSTAMP;VALUE=DATE-TIME:20260530T132928Z
UID:indico-contribution-2433@indico.itp.ac.cn
DESCRIPTION:Speakers: DIEGO CRUCES (Institute of Theoretical Physics - Chi
 nese Academy of Sciences (ITP\,CAS))\nThe statistical properties of the cu
 rvature perturbation on superhorizon scales during inflation are of signif
 icant phenomenological interest\, with implications ranging from cosmic mi
 crowave background (CMB) observations to primordial black hole (PBH) forma
 tion and induced gravitational waves. In this talk\, I will present and co
 mpare different techniques for computing these properties: the standard δ
 N formalism\, the stochastic δN formalism\, and a novel non-perturbative 
 equation of motion for the superhorizon curvature perturbation. I will cla
 rify the connections between these approaches and specify the regime of va
 lidity for each.\n\nhttps://indico.itp.ac.cn/event/419/contributions/2433/
LOCATION:Small Lecture Hall\, Chongqing University Library (图书馆小
 报告厅) 1F-9
URL:https://indico.itp.ac.cn/event/419/contributions/2433/
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