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SUMMARY:Albrecht Klemm (U. Sheffield & U. Bonn) - Black hole scattering\, 
 Feynman graph expansions and Calabi-Yau geometries
DTSTART:20260608T130000Z
DTEND:20260608T140000Z
DTSTAMP:20260721T003900Z
UID:indico-event-2177@indico.uu.se
DESCRIPTION:Speakers: Albrecht Klemm (U. Sheffield & U. Bonn)\n\nRecently 
 Calabi-Yau (CY) periods and their special geometry have been used to solve
   the Post-Minkowskian (PM) approximation to black hole scattering in the
  fifth PM order\, i.e. to  very high precision. This approximation uses e
 ffective Quantum Field Theory methods and in particular a Feynman graph ex
 pansion and Feynman integrals. In this talk we will outline the idea of th
 e PM approximation as well as  the general principles that explain why th
 e period geometry of  CY manifolds and their iterated periods integrals a
 ppear in any higher precision approximation to perturbative QFT. We will m
 ake a connection to the formalism of topological string theory on families
  of CY varieties.     \n\nhttps://indico.uu.se/event/2177/
LOCATION:92110 (Ångströmlaboratoriet)
URL:https://indico.uu.se/event/2177/
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