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SUMMARY:From Quantum Scattering Amplitudes to Gravitational Waves - Zvi Be
 rn (UCLA)
DTSTART:20210317T141500Z
DTEND:20210317T151500Z
UID:TALK156094@talks.cam.ac.uk
CONTACT:Scott Melville
DESCRIPTION:The remarkable detection of gravitational waves by the LIGO/Vi
 rgo\ncollaboration has opened a new window into the cosmos.  In this\ncoll
 oquium we explain how particle theorists can help out with\ncalculations d
 irectly relevant for gravitational-wave emission from\ncompact astrophysic
 al objects.  The past decade has seen enormous\nadvances in our ability to
  compute quantum scattering amplitudes\nmaking seemingly impossible calcul
 ations tractable.  These advances\ninclude ideas such as the duality betwe
 en color and kinematics\,\ndouble-copy relations and generalized unitarity
 \, and improved\nintegration methods.  After introducing these concepts\, 
 we explain how\nthese ideas are transferred to the state-of-the-art calcul
 ations for\nthe binary black hole inspiral problem.
LOCATION:ONLINE - Details to be sent by email
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