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SUMMARY:On: "Quantum de Sitter horizon entropy from quasicanonical bulk\,
edge\, sphere and topological string partition functions"
DTSTART;VALUE=DATE-TIME:20201019T120000Z
DTEND;VALUE=DATE-TIME:20201019T130000Z
DTSTAMP;VALUE=DATE-TIME:20201022T012924Z
UID:indico-event-967140@indico.cern.ch
DESCRIPTION:Abstract\n\nKyriakos will summarize the results of the paper 2
009.12464.\n\nMotivated by the prospect of constraining microscopic models
\, we calculate the exact one-loop corrected de Sitter entropy (the logari
thm of the sphere partition function) for every effective field theory of
quantum gravity\, with particles in arbitrary spin representations. In doi
ng so\, we universally relate the sphere partition function to the quotien
t of a quasi-canonical bulk and a Euclidean edge partition function\, give
n by integrals of characters encoding the bulk and edge spectrum of the ob
servable universe. Expanding the bulk character splits the bulk (entanglem
ent) entropy into quasinormal mode (quasiqubit) contributions. For 3D high
er-spin gravity formulated as an sl(nn) Chern-Simons theory\, we obtain al
l-loop exact results. Further to this\, we show that the theory has an exp
onentially large landscape of de Sitter vacua with quantum entropy given b
y the absolute value squared of a topological string partition function. F
or generic higher-spin gravity\, the formalism succinctly relates dS\, AdS
^± and conformal results. Holography is exhibited in quasi-exact bulk-ed
ge cancelation.\n\n\nBased on\n\n2009.12464\n\nVideo conference link\n\nWe
will be using Vidyo (instead of Zoom) to broadcast the blackboard and use
the mics in the room for better interaction with the remote viewers. Plea
se join via the link below.\n\nhttps://indico.cern.ch/event/967140/
LOCATION:CERN 4/3-006 - TH Conference Room
URL:https://indico.cern.ch/event/967140/
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