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Spin effects in the effective field theory approach to Post-Minkowskian conservative dynamics

Liu, Zhengwen ; Porto, Rafael A. ; Yang, Zixin

The journal of high energy physics, 2021-06, Vol.2021 (6), p.1-42, Article 12 [Periódico revisado por pares]

Berlin/Heidelberg: Springer Berlin Heidelberg

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Título:
Spin effects in the effective field theory approach to Post-Minkowskian conservative dynamics
Autor: Liu, Zhengwen ; Porto, Rafael A. ; Yang, Zixin
Assuntos: Angular momentum ; Approximation ; Circular orbits ; Classical and Quantum Gravitation ; Classical Theories of Gravity ; Effective Field Theories ; Elementary Particles ; Field theory ; Gravitational waves ; High energy physics ; Initial conditions ; Orbits ; Physics ; Physics and Astronomy ; Quantum Field Theories ; Quantum Field Theory ; Quantum Physics ; Radiation ; Regular Article - Theoretical Physics ; Relativity Theory ; Scattering ; String Theory
É parte de: The journal of high energy physics, 2021-06, Vol.2021 (6), p.1-42, Article 12
Descrição: A bstract Building upon the worldline effective field theory (EFT) formalism for spinning bodies developed for the Post-Newtonian regime, we generalize the EFT approach to Post-Minkowskian (PM) dynamics to include rotational degrees of freedom in a manifestly covariant framework. We introduce a systematic procedure to compute the total change in momentum and spin in the gravitational scattering of compact objects. For the special case of spins aligned with the orbital angular momentum, we show how to construct the radial action for elliptic-like orbits using the Boundary-to-Bound correspondence. As a paradigmatic example, we solve the scattering problem to next-to-leading PM order with linear and bilinear spin effects and arbitrary initial conditions, incorporating for the first time finite-size corrections. We obtain the aligned-spin radial action from the resulting scattering data, and derive the periastron advance and binding energy for circular orbits. We also provide the (square of the) center-of-mass momentum to O G 2 , which may be used to reconstruct a Hamiltonian. Our results are in perfect agreement with the existent literature, while at the same time extend the knowledge of the PM dynamics of compact binaries at quadratic order in spins.
Editor: Berlin/Heidelberg: Springer Berlin Heidelberg
Idioma: Inglês

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Spin effects in the effective field theory approach to Post-Minkowskian conservative dynamics

Liu, Zhengwen ; Porto, Rafael A. ; Yang, Zixin

Berlin/Heidelberg: Springer Berlin Heidelberg

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