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SUMMARY:Cosmological α′-corrections from the functional renormalization
  group - Alessia Platania (Perimeter)
DTSTART:20230403T120000Z
DTEND:20230403T130000Z
UID:TALK195565@talks.cam.ac.uk
CONTACT:Dr  Dong-Gang Wang
DESCRIPTION:Higher-derivative corrections to cosmological effective action
 s in string theory are largely constrained by T-duality\, but have been co
 mputed hitherto only to the first few orders in the string scale α′. Th
 e functional renormalization group\, in conjunction with the strong constr
 aints imposed by T-duality\, can be used to derive cosmological effective 
 actions to all orders in α′ while avoiding “truncations” of the the
 ory space. We exploit the resulting mini-superspace effective actions to i
 nvestigate the existence of (non-perturbative) de Sitter vacua. Our findin
 gs support the no-de Sitter swampland conjecture in the presence of all-or
 der effects in α′.
LOCATION:CMS\, Pav. B\, CTC Common Room (B1.19) [Potter Room]
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