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SUMMARY:Georgi Dvali (Max Planck Institute)
DTSTART:20210209T110000Z
DTEND:20210209T120000Z
DTSTAMP:20260513T213213Z
UID:CCTP_HEP/36
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/CCTP_HEP/36/
 ">S-matrix constraints on de Sitter and on black holes</a>\nby Georgi Dval
 i (Max Planck Institute) as part of CCTP HEP Seminars\n\n\nAbstract\nWe di
 scuss how the S-matrix formulation of quantum gravity/string theory exclud
 es any sort of stable or a metastable de Sitter. The constraint is enforce
 d by the phenomenon of quantum break-time. This has a number of observable
  consequences both for early and late cosmology. In particular\, it exclud
 es cosmological constant as part of the energy budget in the Universe. We 
 confront the quantum portraits of de Sitter and black holes and point out 
 similarities as well as fundamental differences.\n
LOCATION:https://researchseminars.org/talk/CCTP_HEP/36/
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