Gravitational Bremsstrahlung from reverse unitarity

Abstract: We compute the total radiated momentum carried by gravitational waves during the scattering of two spinless black holes at the lowest order in Newton’s constant, O(G3), and all orders in velocity. By analytic continuation into the bound state regime, we obtain the O(G3) energy loss in elliptic orbits. This provides an essential step toward the complete understanding of the third-post-Minkowskian binary dynamics. We employ the formalism of Kosower, Maybee, and O’Connell (KMOC), which relates classical observables to quantum scattering amplitudes, and derive the relevant integrands using generalized unitarity. The subsequent phase-space integrations are performed via the reverse unitarity method familiar from collider physics, using differential equations to obtain the exact velocity dependence from near-static boundary conditions

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch
Notes
Physical review letters. - 126, 20 (2021) , 201602, ISSN: 1079-7114

Classification
Physik

Event
Veröffentlichung
(where)
Freiburg
(who)
Universität
(when)
2024
Creator
Herrmann, Enrico
Parra-Martinez, Julio
Ruf, Michael
Zeng, Mao

DOI
10.1103/physrevlett.126.201602
URN
urn:nbn:de:bsz:25-freidok-2468326
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
25.03.2025, 1:49 PM CET

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Associated

  • Herrmann, Enrico
  • Parra-Martinez, Julio
  • Ruf, Michael
  • Zeng, Mao
  • Universität

Time of origin

  • 2024

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