Efficient simulations of high-spin black holes with a new gauge

Chen, Yitian and Deppe, Nils and Kidder, Lawrence E. and Teukolsky, Saul A. (2021) Efficient simulations of high-spin black holes with a new gauge. Physical Review D, 104 (8). Art. No. 084046. ISSN 2470-0010. doi:10.1103/PhysRevD.104.084046. https://resolver.caltech.edu/CaltechAUTHORS:20211014-212144369

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Abstract

We present a new choice of initial data for binary black hole simulations that significantly improves the efficiency of high-spin simulations. We use spherical Kerr-Schild coordinates, where the horizon of a rotating black hole is spherical, for each black hole. The superposed spherical Kerr-Schild initial data reduce the runtime by a factor of 2 compared to standard superposed Kerr-Schild for an intermediate resolution spin-0.99 binary-black-hole simulation. We also explore different variations of the gauge conditions imposed during the evolution, one of which produces an additional speed-up of 1.3.

Item Type:

Article

Related URLs:

URL	URL Type	Description
https://doi.org/10.1103/physrevd.104.084046	DOI	Article
https://arxiv.org/abs/2108.02331	arXiv	Discussion Paper

ORCID:

Author	ORCID
Chen, Yitian	0000-0002-8664-9702
Deppe, Nils	0000-0003-4557-4115
Kidder, Lawrence E.	0000-0001-5392-7342
Teukolsky, Saul A.	0000-0001-9765-4526

Additional Information:

© 2021 American Physical Society. (Received 6 August 2021; accepted 21 September 2021; published 12 October 2021) We thank Michael Boyle, Dante Iozzo, and Vijay Varma for useful discussions. Computations were performed with the High Performance Computing Center and the Wheeler cluster at Caltech. Computations were also conducted on the Frontera computing project at the Texas Advanced Computing Center. This work was supported in part by the Sherman Fairchild Foundation and by NSF Grants No. PHY-2011961, No. PHY-2011968, and No. OAC-1931266 at Caltech, and NSF Grants No. PHY-1912081 and No. OAC-1931280 at Cornell.

Group:

TAPIR

Funders:

Funding Agency	Grant Number
Sherman Fairchild Foundation	UNSPECIFIED
NSF	PHY-2011961
NSF	PHY-2011968
NSF	OAC-1931266
NSF	PHY-1912081
NSF	OAC-1931280

Issue or Number:

DOI:

10.1103/PhysRevD.104.084046

Record Number:

CaltechAUTHORS:20211014-212144369

Persistent URL:

https://resolver.caltech.edu/CaltechAUTHORS:20211014-212144369

Usage Policy:

No commercial reproduction, distribution, display or performance rights in this work are provided.

ID Code:

111454

Collection:

CaltechAUTHORS

Deposited By:

George Porter

Deposited On:

18 Oct 2021 19:36

Last Modified:

18 Oct 2021 19:36

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