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Theory Colloquia
Multi-loop scattering amplitudes and gravitational binary dynamics
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Europe/Zurich
Zoom (CERN)
Zoom
CERN
Description
Next-generation gravitational wave detectors require highly precise predictions for the waveforms from inspiraling black holes and neutron stars. We present advances in binary inspiral dynamics by taking classical limits of scattering amplitudes in perturbative quantum gravity. The amplitudes are calculated efficiently using modern methods for scattering amplitudes, including double copy and generalized unitarity, and loop integration techniques borrowed from collider physics. Classical physics can be extracted by several complementary approaches, including effective field theory, eikonal exponentiation, and observables in wavepacket scattering. For both conservative and dissipative dynamics of binary systems, we obtain new terms in the post-Minksowskian expansion beyond the best previous results from purely classical methods.
Videoconference
TH colloquia
- Zoom Meeting ID
- 67346292748
- Host
- Elena Gianolio
- Alternative hosts
- AVC support account, Zoom Recording Operations 2, Irene Valenzuela Agui, Thomas Nik Bazl Fard, Urs Wiedemann, Pier Francesco Monni, Pascal Pignereau, Clement Montcharmont, Benoit Loyer
- Passcode
- 80279029
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