Radiation Reaction and Gravitational Waves at Fourth Post-Minkowskian Order
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We obtain the total impulse in the scattering of nonspinning binaries in general relativity at fourth post-Minkowskian order, i.e., O(G4), including linear, nonlinear, and hereditary radiation-reaction effects. We derive the total radiated spacetime momentum as well as the associated energy flux. The latter can be used to compute gravitational-wave observables for generic (un)bound orbits. We employ the ("in-in") Schwinger-Keldysh worldline effective field theory framework in combination with modern "multiloop"integration techniques from collider physics. The complete results are in agreement with various partial calculations in the post-Minkowskian and post-Newtonian expansion.
Original language | English |
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Article number | 101401 |
Journal | Physical Review Letters |
Volume | 130 |
Issue number | 10 |
Number of pages | 10 |
ISSN | 0031-9007 |
DOIs | |
Publication status | Published - 2023 |
Bibliographical note
Publisher Copyright:
© 2023 authors. Published by the American Physical Society.
ID: 372821388