Simple, efficient method of calculating the Detweiler-Whiting singular field to very high order
Apr 15, 202424 pages
Published in:
- Phys.Rev.D 110 (2024) 8, 084007
- Published: Oct 4, 2024
e-Print:
- 2404.10082 [gr-qc]
DOI:
- 10.1103/PhysRevD.110.084007 (publication)
View in:
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Abstract: (APS)
Most self-force calculations rely, in one way or another, on representations of a particle’s Detweiler-Whiting singular field. We present a simple method of calculating the singular field to high order in a local expansion in powers of distance from the particle. As a demonstration, we compute the singular field to 14th order in distance, 10 orders beyond the previous state of the art, in the simple case of a scalar charge in circular orbit around a Schwarzschild black hole. We provide the result in both a four-dimensional form and a decomposed form suitable for use in an -mode puncture scheme. Our method should have applications in overcoming bottlenecks in current self-force calculations at both first and second orders in perturbation theory.Note:
- 24 pages, 5 figures
References(62)
Figures(5)
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