Black Holes in an Effective Field Theory Extension of General Relativity
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Dokumenter
- PhysRevLett.121.251105
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Effective field theory methods suggest that some rather general extensions of general relativity include, or are mimicked by, certain higher-order curvature corrections, with coupling constants expected to be small but otherwise arbitrary. Thus, the tantalizing prospect to test the fundamental nature of gravity with gravitational-wave observations, in a systematic way, emerges naturally. Here, we build black hole solutions in such a framework and study their main properties. Once rotation is included, we find the first purely gravitational example of geometries without Z(2) symmetry. Despite the higher-order operators of the theory, we show that linearized fluctuations of such geometries obey second-order differential equations. We find nonzero tidal Love numbers. We study and compute the quasinormal modes of such geometries. These results are of interest to gravitational-wave science but also potentially relevant for electromagnetic observations of the galactic center or x-ray binaries.
Originalsprog | Engelsk |
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Artikelnummer | 251105 |
Tidsskrift | Physical Review Letters |
Vol/bind | 121 |
Udgave nummer | 25 |
Antal sider | 6 |
ISSN | 0031-9007 |
DOI | |
Status | Udgivet - 20 dec. 2018 |
Eksternt udgivet | Ja |
ID: 299200334