Radiation Reaction and Gravitational Waves at Fourth Post-Minkowskian Order

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  • Christoph Dlapa
  • Gregor Kälin
  • Liu, Zhengwen
  • Jakob Neef
  • Rafael A. Porto
We obtain the total impulse in the scattering of nonspinning binaries in general relativity at fourth postMinkowskian order, i.e., OðG4Þ, 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.
OriginalsprogEngelsk
Artikelnummer101401
TidsskriftPhysical Review Letters
Vol/bind130
Udgave nummer10
Antal sider10
ISSN0031-9007
DOI
StatusUdgivet - 2023

Bibliografisk note

Funding Information:
We thank Donato Bini, Johannes Blümlein, Ruth Britto, Gihyuk Cho, Walter Goldberger, Carlo Heissenberg, Francois Larrouturou, Massimiliano Riva, Ira Rothstein, Rodolfo Russo, and Chia-Hsien Shen for useful discussions. We are particularly grateful to Donato Bini, Thibault Damour, and Andrea Geralico for sharing their results on higher order radiative effects in the PN expansion prior to submission. We would like to thank the participants of the KITP program “High-Precision Gravitational Waves” (supported in part by the National Science Foundation under Grant No. NSF PHY-1748958) for discussions. Z. L. is grateful to the Mainz Institute for Theoretical Physics and the DFG Cluster of Excellence (Project ID 39083149), for hospitality and support. This work received support from the ERC-CoG Precision Gravity: From the LHC to LISA provided by the European Research Council (ERC) under the European Union’s H2020 research and innovation programme (Grant No. 817791). Z. L. is supported partially by DFF Grant No. 1026-00077B, the Carlsberg Foundation, and the European Unions Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant Agreement No. 847523 INTERACTIONS.

Publisher Copyright:
© 2023 authors. Published by the American Physical Society.

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