Linear response, Hamiltonian, and radiative spinning two-body dynamics
Oct 12, 2022
23 pages
Published in:
- Phys.Rev.D 107 (2023) 4, 044033
- Published: Feb 15, 2023
e-Print:
- 2210.06451 [hep-th]
DOI:
- 10.1103/PhysRevD.107.044033 (publication)
Report number:
- HU-EP-22/32-RTG
View in:
Citations per year
Abstract: (APS)
Using the spinning, supersymmetric worldline quantum field theory formalism we compute the momentum impulse and spin kick from a scattering of two spinning black holes or neutron stars up to quadratic order in spin at third post-Minkowskian (PM) order, including radiation-reaction effects and with arbitrarily misaligned spin directions. Parts of these observables, both conservative and radiative, are also inferred from lower-PM scattering data by extending Bini and Damour’s linear response formula to include misaligned spins. By solving Hamilton’s equations of motion we also use a conservative scattering angle to infer a complete 3PM two-body Hamiltonian including finite-size corrections and misaligned spin-spin interactions. Finally, we describe mappings to the bound two-body dynamics for aligned spin vectors: including a numerical plot of the binding energy for circular orbits compared with numerical relativity, analytic confirmation of the NNLO PN binding energy, and the energy loss over successive orbits.Note:
- 23 pages, 2 figures
- spin: vector
- correction: finite size
- scattering
- Hamiltonian
- binding energy
- orbit
- conservation law
- black hole
- neutron star
- field equations
References(151)
Figures(37)
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