The relation between KMOC and worldline formalisms for classical gravity
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The relation between KMOC and worldline formalisms for classical gravity. / Damgaard, Poul H.; Hansen, Elias Roos; Planté, Ludovic; Vanhove, Pierre.
In: Journal of High Energy Physics, Vol. 2023, No. 9, 59, 11.09.2023.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - The relation between KMOC and worldline formalisms for classical gravity
AU - Damgaard, Poul H.
AU - Hansen, Elias Roos
AU - Planté, Ludovic
AU - Vanhove, Pierre
N1 - Publisher Copyright: © 2023, The Author(s).
PY - 2023/9/11
Y1 - 2023/9/11
N2 - We demonstrate the equivalence between observables in the KMOC and worldline formalisms for classical general relativity, highlighting the relation between the initial conditions in the two frameworks and how the Keldysh-Schwinger in-in formalism is contained in both of them even though the KMOC representation conventionally leads to the evaluation of scattering amplitudes with Feynman propagators. The relationship between the two approaches is illustrated in detail for the momentum kick at second Post-Minkowskian order.
AB - We demonstrate the equivalence between observables in the KMOC and worldline formalisms for classical general relativity, highlighting the relation between the initial conditions in the two frameworks and how the Keldysh-Schwinger in-in formalism is contained in both of them even though the KMOC representation conventionally leads to the evaluation of scattering amplitudes with Feynman propagators. The relationship between the two approaches is illustrated in detail for the momentum kick at second Post-Minkowskian order.
KW - Classical Theories of Gravity
KW - Effective Field Theories
KW - Scattering Amplitudes
U2 - 10.1007/JHEP09(2023)059
DO - 10.1007/JHEP09(2023)059
M3 - Journal article
AN - SCOPUS:85170665666
VL - 2023
JO - Journal of High Energy Physics (Online)
JF - Journal of High Energy Physics (Online)
SN - 1126-6708
IS - 9
M1 - 59
ER -
ID: 382557819