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SUMMARY:Sabrina Pasterski (Perimeter Institute)
DTSTART:20231211T200000Z
DTEND:20231211T210000Z
DTSTAMP:20260423T021437Z
UID:WHCGP/56
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WHCGP/56/">C
 elestial holography from bottom-up to top-down</a>\nby Sabrina Pasterski (
 Perimeter Institute) as part of Western Hemisphere colloquium on geometry 
 and physics\n\n\nAbstract\nThe Celestial Holography program encompasses re
 cent efforts to understand the flat space hologram in terms of a CFT livin
 g on the celestial sphere. A key development instigating these efforts cam
 e from understanding how soft limits of scattering encode infinite dimensi
 onal symmetry enhancements corresponding to the asymptotic symmetry group 
 of the bulk spacetime. Historically\, the construction of the bulk-boundar
 y dual pair has followed bottom up approach matching symmetries on both si
 des. Recently\, however\, there has been exciting progress in formulating 
 top down descriptions using insights from twisted holography. In this talk
  we will cover salient aspects of the celestial construction\, the status 
 of the dictionary\, and active research directions.\n
LOCATION:https://researchseminars.org/talk/WHCGP/56/
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