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SUMMARY:Gang Cheng (Niels Bohr Institute Copenhagen) - Bridging Scattering
  Amplitudes and Black Hole Perturbation Theory — Toward a Fundamental Gr
 avitational Action
DTSTART:20260401T130000Z
DTEND:20260401T140000Z
DTSTAMP:20260407T170500Z
UID:indico-event-2127@indico.uu.se
DESCRIPTION:Speakers: Gang Chen (Niels Bohr Institute)\n\nIn this talk\, I
  will first review recent progress on black hole actions in the hypersurfa
 ce model. I will then introduce a general framework that bridges Compton a
 mplitudes and black hole perturbation theory\, and explain how this connec
 tion can be used to determine the unknown parts of the action. Finally\, I
  will present an outlook on a wide range of applications\, including fixin
 g the Compton amplitude with spin and finite-size effects\, extracting qua
 si-normal modes\, and extending the framework to nonlinear effects beyond 
 black hole perturbation theory.\n\nhttps://indico.uu.se/event/2127/
LOCATION:92110 (Ångströmlaboratoriet)
URL:https://indico.uu.se/event/2127/
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