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UID:20250918T142322EDT-8540Upac4A@132.216.98.100
DTSTAMP:20250918T182322Z
DESCRIPTION:2018 CAP-CRM Prize winner Ariel Zhitnitsky (UBC)\n\nABSTRACT : 
 I discuss a new scenario for early cosmology when the inflationary de Sitt
 er phase emerges dynamically. This genuine quantum effect occurs as a resu
 lt of dynamics of the topologically nontrivial sectors in a strongly coupl
 ed non-abelian gauge theory in an expanding universe. I argue that the key
  element for this idea to work is the presence of nontrivial holonomy in s
 trongly coupled gauge theories. The effect is global in nature\, non-analy
 tical in coupling constant\, and cannot be formulated in terms of a gradie
 nt expansion in an effective local field theory. I explain the basic ideas
  of this framework using a simplified 2D quantum field theory where precis
 e computations can be carried out in theoretically controllable way. I mov
 e on to generalize the computations to 4D non-abelian gauge field theories
 . The last (and most important for cosmological applications) part of my t
 alk is based on recent paper [arXiv:1709.09671].\n
DTSTART:20181019T200000Z
DTEND:20181019T210000Z
LOCATION:Room 1140\, CA\, Pav. André-Aisenstadt\, 2920\, ch. de la Tour
SUMMARY:Lecture by Ariel Zhitnitsky\, 2018 CAP-CRM Prize Recipient
URL:/mathstat/channels/event/lecture-ariel-zhitnitsky-
 2018-cap-crm-prize-recipient-290540
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