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Worldtube puncture scheme for first- and second-order self-force calculations in the Fourier domain

Worldtube puncture scheme for first- and second-order self-force calculations in the Fourier domain
Worldtube puncture scheme for first- and second-order self-force calculations in the Fourier domain

Second-order gravitational self-force theory has recently led to the breakthrough calculation of "first post-adiabatic"compact-binary waveforms [Phys. Rev. Lett. 130, 241402 (2023)PRLTAO0031-900710.1103/PhysRevLett.130.241402]. The computations underlying those waveforms depend on a method of solving the perturbative second-order Einstein equation on a Schwarzschild background in the Fourier domain. In this paper we present that method, which involves dividing the domain into several regions. Different regions utilize different time slicings and allow for the use of "punctures"to tame sources and enforce physical boundary conditions. We demonstrate the method for Lorenz-gauge and Teukolsky equations in the relatively simple case of calculating parametric derivatives ("slow time derivatives") of first-order fields, which are an essential input at second order.

2470-0010
Miller, Jeremy
cb83c736-c2d9-4233-99af-0ff429ac753f
Leather, Benjamin
bde8560b-438d-44c8-b51a-9b30736323d2
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Warburton, Niels
6c4af04a-6a2f-44c3-bf82-2a94fd088691
Miller, Jeremy
cb83c736-c2d9-4233-99af-0ff429ac753f
Leather, Benjamin
bde8560b-438d-44c8-b51a-9b30736323d2
Pound, Adam
5aac971a-0e07-4383-aff0-a21d43103a70
Warburton, Niels
6c4af04a-6a2f-44c3-bf82-2a94fd088691

Miller, Jeremy, Leather, Benjamin, Pound, Adam and Warburton, Niels (2024) Worldtube puncture scheme for first- and second-order self-force calculations in the Fourier domain. Physical Review D, 109 (10), [104010]. (doi:10.1103/PhysRevD.109.104010).

Record type: Article

Abstract

Second-order gravitational self-force theory has recently led to the breakthrough calculation of "first post-adiabatic"compact-binary waveforms [Phys. Rev. Lett. 130, 241402 (2023)PRLTAO0031-900710.1103/PhysRevLett.130.241402]. The computations underlying those waveforms depend on a method of solving the perturbative second-order Einstein equation on a Schwarzschild background in the Fourier domain. In this paper we present that method, which involves dividing the domain into several regions. Different regions utilize different time slicings and allow for the use of "punctures"to tame sources and enforce physical boundary conditions. We demonstrate the method for Lorenz-gauge and Teukolsky equations in the relatively simple case of calculating parametric derivatives ("slow time derivatives") of first-order fields, which are an essential input at second order.

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Accepted/In Press date: 25 March 2024
e-pub ahead of print date: 6 May 2024
Published date: 6 May 2024
Additional Information: Publisher Copyright: © 2024 American Physical Society.

Identifiers

Local EPrints ID: 489330
URI: http://eprints.soton.ac.uk/id/eprint/489330
ISSN: 2470-0010
PURE UUID: 4bfac584-7481-48b9-8196-caaa1e473279
ORCID for Adam Pound: ORCID iD orcid.org/0000-0001-9446-0638

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Date deposited: 22 Apr 2024 16:30
Last modified: 08 Jun 2024 04:01

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Contributors

Author: Jeremy Miller
Author: Benjamin Leather
Author: Adam Pound ORCID iD
Author: Niels Warburton

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