Classical gravity from loop amplitudes
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Dokumenter
- PhysRevD.104.026009
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We describe an efficient method for extracting the parts of D-dimensional loop integrals that are needed to derive observables in classical general relativity from scattering amplitudes. Our approach simplifies the soft-region method of integration by judiciously combining terms before the final integrations. We demonstrate the method by computing the required integrals for black-hole scattering to the second post-Minkowskian order in Einstein gravity coupled to scalars. We also confirm recent results at the third post-Minkowskian order regarding universality and high-energy behavior of gravitational interactions in maximal supergravity.
Originalsprog | Engelsk |
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Artikelnummer | 026009 |
Tidsskrift | Physical Review D |
Vol/bind | 104 |
Udgave nummer | 2 |
Antal sider | 27 |
ISSN | 2470-0010 |
DOI | |
Status | Udgivet - 20 jul. 2021 |
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