Physics
Scientific paper
Apr 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003nwap.conf..260d&link_type=abstract
NEW WORLDS IN ASTROPARTICLE PHYSICS. Proceedings of the Fourth International Workshop. Held 5-7 September 2002 in Faro, Portugal
Physics
Scientific paper
The anti-de Sitter C-metric (AdS C-metric) is characterized by a quite interesting new feature when compared with the C-metric in flat or de Sitter backgrounds. Indeed, contrarily to what happens in these two last exact solutions, the AdS C-metric only describes a pair of accelerated black holes if the acceleration parameter satisfies A > 1/ℓ, where ℓ is the cosmological length. The two black holes cannot interact gravitationally and their acceleration is totally provided by the pressure exerted by a strut that pushes the black holes apart. Our analysis is based on the study of the causal structure, on the description of the solution in the AdS 4-hyperboloid in a 5D Minkowski spacetime, and on the physics of the strut. We also comment the cases A = 1/ℓ and A < 1/ℓ that represent a single accelerated black hole in the AdS background. The C-metric is an exact solution which includes a radiative term and describes the final state of quantum pair creation of black holes.
Dias Óscar J. C.
Lemos José P. S.
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