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http://hdl.handle.net/10773/15045
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DC Field | Value | Language |
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dc.contributor.author | Wang, Mengjie | pt |
dc.contributor.author | Herdeiro, Carlos | pt |
dc.contributor.author | Sampaio, Marco O. P. | pt |
dc.date.accessioned | 2016-01-11T15:57:28Z | - |
dc.date.available | 2016-01-11T15:57:28Z | - |
dc.date.issued | 2015-12-01 | - |
dc.identifier.issn | 1550-2368 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/15045 | - |
dc.description.abstract | Perturbations of asymptotically Anti-de-Sitter (AdS) spacetimes are often considered by imposing field vanishing boundary conditions (BCs) at the AdS boundary. Such BCs, of Dirichlet-type, imply a vanishing energy flux at the boundary, but the converse is, generically, not true. Regarding AdS as a gravitational box, we consider vanishing energy flux (VEF) BCs as a more fundamental physical requirement and we show that these BCs can lead to a new branch of modes. As a concrete example, we consider Maxwell perturbations on Kerr-AdS black holes in the Teukolsky formalism, but our formulation applies also for other spin fields. Imposing VEF BCs, we find a set of two Robin BCs, even for Schwarzschild-AdS black holes. The Robin BCs on the Teukolsky variables can be used to study quasinormal modes, superradiant instabilities and vector clouds. As a first application, we consider here the quasinormal modes of Schwarzschild-AdS black holes. We find that one of the Robin BCs yields the quasinormal spectrum reported in the literature, while the other one unveils a new branch for the quasinormal spectrum. | pt |
dc.language.iso | eng | pt |
dc.publisher | American Physical Society | pt |
dc.relation | SFRH/BD/51648/2011 | pt |
dc.relation | SFRH/BPD/69971/2010 | pt |
dc.relation | PTDC/FIS/116625/2010 | pt |
dc.relation | UID/MAT/04106/2013 | pt |
dc.relation | NRHEP–295189-FP7-PEOPLE-2011-IRSES | pt |
dc.rights | openAccess | por |
dc.title | Maxwell perturbations on asymptotically Anti-de-Sitter spacetimes: generic boundary conditions and a new branch of quasinormal modes | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 124006 | pt |
degois.publication.issue | 12 | pt |
degois.publication.title | Physical Review D | pt |
degois.publication.volume | 92 | pt |
dc.identifier.doi | 10.1103/PhysRevD.92.124006 | pt |
Appears in Collections: | CIDMA - Artigos DFis - Artigos GGDG - Artigos |
Files in This Item:
File | Description | Size | Format | |
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1510.04713v2.pdf | Main article | 582.93 kB | Adobe PDF | View/Open |
Maxwell perturbations.pdf | 352.27 kB | Adobe PDF |
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