Professor THOMAS SOTIRIOU Thomas.Sotiriou@nottingham.ac.uk
PROFESSOR OF GRAVITATIONAL PHYSICS
Black hole hair in generalized scalar-tensor gravity
Sotiriou, Thomas; Zhou, Shuang-Yong
Authors
Shuang-Yong Zhou
Abstract
The most general action for a scalar field coupled to gravity that leads to second-order field equations for both the metric and the scalar—Horndeski’s theory—is considered, with the extra assumption that the scalar satisfies shift symmetry. We show that in such theories, the scalar field is forced to have a nontrivial configuration in black hole spacetimes, unless one carefully tunes away a linear coupling with the Gauss-Bonnet invariant. Hence, black holes for generic theories in this class will have hair. This contradicts a recent no-hair theorem which seems to have overlooked the presence of this coupling.
Citation
Sotiriou, T., & Zhou, S.-Y. (2014). Black hole hair in generalized scalar-tensor gravity. Physical Review Letters, 112(25), Article 251102. https://doi.org/10.1103/PhysRevLett.112.251102
Journal Article Type | Article |
---|---|
Acceptance Date | Jun 10, 2014 |
Publication Date | Jun 26, 2014 |
Deposit Date | Mar 8, 2018 |
Journal | Physical Review Letters |
Print ISSN | 0031-9007 |
Electronic ISSN | 1079-7114 |
Publisher | American Physical Society |
Peer Reviewed | Peer Reviewed |
Volume | 112 |
Issue | 25 |
Article Number | 251102 |
DOI | https://doi.org/10.1103/PhysRevLett.112.251102 |
Public URL | https://nottingham-repository.worktribe.com/output/1101328 |
Publisher URL | https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.112.251102 |
PMID | 00033828 |
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