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Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes

Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes
Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes
The superradiant instability modes of ultralight massive vector bosons are studied for weakly charged rotating black holes in Einstein-Maxwell gravity (the Kerr- Newman solution) and low-energy heterotic string theory (the Kerr-Sen black hole). We show that in both these cases, the corresponding massive vector (Proca) equations can be fully separated, exploiting the hidden symmetry present in these spacetimes. The resultant ordinary differential equations are solved numerically to find the most unstable modes of the Proca field in the two backgrounds and compared to the vacuum (Kerr black hole) case.
Black Holes, Black Holes in String Theory
1029-8479
Cayuso, Ramiro
41b1f207-3a13-464c-8ab9-2d6fdf099f57
Campos Dias, Oscar
f01a8d9b-9597-4c32-9226-53a6e5500a54
Gray, Finnian
553ba77f-2ac4-4f94-9a90-41b9c89829d2
Kubiznak, David
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Margalit, Aoibheann
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Santos, Jorge E.
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Souza, Renato
eb2381a1-dcfe-4f33-a7e4-7a724f25075d
Thiele, Leander
b809aa1d-724f-4384-88f9-f9295c1fb167
Cayuso, Ramiro
41b1f207-3a13-464c-8ab9-2d6fdf099f57
Campos Dias, Oscar
f01a8d9b-9597-4c32-9226-53a6e5500a54
Gray, Finnian
553ba77f-2ac4-4f94-9a90-41b9c89829d2
Kubiznak, David
d5124759-0c17-4343-a20b-ada90c4bd9b1
Margalit, Aoibheann
4e964901-a872-48ea-9b3c-03a42f2db691
Santos, Jorge E.
6e5a1703-a14c-4ef6-bfe4-7e4c5177c274
Souza, Renato
eb2381a1-dcfe-4f33-a7e4-7a724f25075d
Thiele, Leander
b809aa1d-724f-4384-88f9-f9295c1fb167

Cayuso, Ramiro, Campos Dias, Oscar, Gray, Finnian, Kubiznak, David, Margalit, Aoibheann, Santos, Jorge E., Souza, Renato and Thiele, Leander (2020) Massive vector fields in Kerr-Newman and Kerr-Sen black hole spacetimes. Journal of High Energy Physics, 2020 (4), [159]. (doi:10.1007/JHEP04(2020)159).

Record type: Article

Abstract

The superradiant instability modes of ultralight massive vector bosons are studied for weakly charged rotating black holes in Einstein-Maxwell gravity (the Kerr- Newman solution) and low-energy heterotic string theory (the Kerr-Sen black hole). We show that in both these cases, the corresponding massive vector (Proca) equations can be fully separated, exploiting the hidden symmetry present in these spacetimes. The resultant ordinary differential equations are solved numerically to find the most unstable modes of the Proca field in the two backgrounds and compared to the vacuum (Kerr black hole) case.

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1912.08224 - Author's Original
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Accepted/In Press date: 26 March 2020
Published date: 24 April 2020
Keywords: Black Holes, Black Holes in String Theory

Identifiers

Local EPrints ID: 441437
URI: http://eprints.soton.ac.uk/id/eprint/441437
ISSN: 1029-8479
PURE UUID: 332d564e-f089-45c7-a325-b7359ac64db7
ORCID for Oscar Campos Dias: ORCID iD orcid.org/0000-0003-4855-4750

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Date deposited: 12 Jun 2020 16:30
Last modified: 28 Apr 2022 02:11

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Contributors

Author: Ramiro Cayuso
Author: Finnian Gray
Author: David Kubiznak
Author: Aoibheann Margalit
Author: Jorge E. Santos
Author: Renato Souza
Author: Leander Thiele

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