Classical gravity from loop amplitudes
N. E. J. Bjerrum-Bohr, P.H. Damgaard, Ludovic Planté, Pierre Vanhove
Abstract
The detection of gravitational waves from binary mergers such as black holes requires highly precise analytical computations as they are fed into gravitational wave templates. Employing quantum field theory methods in a post-Minkowskian expansion turns out to be a useful framework for such analytical computations. However, extracting the classical limit from the scattering amplitudes appears to be cumbersome. The authors describe an efficient method for extracting the parts of loop integrals that are needed in obtaining the classical limit.
Topics & Concepts
PhysicsGeneral relativitySupergravityObservableEinsteinAmplitudeGravitationScattering amplitudeUniversality (dynamical systems)Theoretical physicsBlack hole (networking)Mathematical physicsClassical mechanicsQuantum mechanicsSupersymmetryComputer scienceRouting protocolRouting (electronic design automation)Link-state routing protocolComputer networkPulsars and Gravitational Waves ResearchBlack Holes and Theoretical PhysicsAstrophysical Phenomena and Observations