Kanti, P. and Winstanley, E. orcid.org/0000-0001-8964-8142 (2000) Do stringy corrections stabilize colored black holes? Physical Review D, 61 (8). 084032. ISSN 1550-7998
Abstract
We consider hairy black hole solutions of Einstein-Yang-Mi lls-Dilaton theory, coupled to a Gauss- Bonnet curvature term, and we study their stability under sm all, spacetime-dependent perturbations. We demonstrate that the stringy corrections do not remove the sphaleronic instabilities of the coloured black holes with the number of unstable modes being equal to the number of nodes of the background gauge function. In the gravitational sector , and in the limit of an infinitely large horizon, the coloured black holes are also found to be unstable. Similar behaviour is exhibited by the magnetically charged black holes while the bulk of the neutral black holes are proven to be stable under small, gauge-dependent perturbations. Finally, the electrically charged black holes are found to be characterized only by the existence of a gravitational sector of perturbations. As in the case of neutral black holes, we demonstrate that for the bulk of electrically charged black holes no unstable modes arise in this sector.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2000 American Physical Society. This is an author produced version of a paper subsequently published in Physical Review D. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | GAUSS-BONNET TERM; YANG-MILLS SOLITONS; CATASTROPHE-THEORY; LINEAR-STABILITY; INSTABILITY; SPHALERONS; GRAVITY; SYSTEMS |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 28 Jul 2016 09:39 |
Last Modified: | 26 Oct 2016 13:38 |
Published Version: | http://dx.doi.org/10.1103/PhysRevD.61.084032 |
Status: | Published |
Publisher: | American Physical Society |
Identification Number: | 10.1103/PhysRevD.61.084032 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:102587 |