Classical gravity from loop amplitudes
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Classical gravity from loop amplitudes. / Bjerrum-Bohr, N. Emil J.; Damgaard, Poul H.; Plante, Ludovic; Vanhove, Pierre.
I: Physical Review D, Bind 104, Nr. 2, 026009, 20.07.2021.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Classical gravity from loop amplitudes
AU - Bjerrum-Bohr, N. Emil J.
AU - Damgaard, Poul H.
AU - Plante, Ludovic
AU - Vanhove, Pierre
PY - 2021/7/20
Y1 - 2021/7/20
N2 - 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.
AB - 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.
KW - YANG-MILLS
U2 - 10.1103/PhysRevD.104.026009
DO - 10.1103/PhysRevD.104.026009
M3 - Journal article
VL - 104
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 2
M1 - 026009
ER -
ID: 275999530