Report number
| arXiv:2306.11454 ; CERN-TH-2023-096 ; IPhT-t23/040 ; LAPTH-023/23 |
Title
| The Relation Between KMOC and Worldline Formalisms for Classical Gravity |
Author(s)
| Damgaard, Poul H. (Bohr Inst. ; CERN) ; Hansen, Elias Roos (Bohr Inst.) ; Planté, Ludovic (Bohr Inst.) ; Vanhove, Pierre (IPhT, Saclay) |
Publication
| 2023-09-11 |
Imprint
| 2023-06-20 |
Number of pages
| 39 |
Note
| 39 pages. v2: Some clarifications and references added. Version to
appear in JHEP |
In:
| JHEP 2309 (2023) 059 |
DOI
| 10.1007/JHEP09(2023)059
|
Subject category
| hep-ph ; Particle Physics - Phenomenology ; gr-qc ; General Relativity and Cosmology ; hep-th ; Particle Physics - Theory |
Abstract
| We demonstrate the equivalence between KMOC and worldline formalisms for classical general relativity, highlighting 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. |
Copyright/License
| publication: © 2023-2025 The Authors (License: CC-BY-4.0), sponsored by SCOAP³ preprint: (License: CC BY 4.0) |