Black hole dynamical evolution in a Lorentz-violating spacetime

Details Black hole dynamical evolution in a Lorentz-violating spacetime Black hole dynamical evolution in a Lorentz-violating spacetime

2010-12-19

arxiv.org/abs/1012.4180v2

Phys.Rev.D83:084043,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 8 figures

Scientific paper

10.1103/PhysRevD.83.084043

We consider the black hole dynamical evolution in the framework of a Lorentz-violating spacetime endowed with a Schwarzchild-like momentum-dependent metric. Large deviations from the Hawking-Bekenstein predictions are obtained, depending on the values of the Lorentz-violating parameter lambda introduced. A non-trivial evolution comes out, following mainly from the existence of a non-vanishing minimum mass: for large Lorentz violations, most of the black hole evaporation takes place in the initial stage, which is then followed by a stationary stage (whose duration depends on the value of lambda) where the mass does not change appreciably. Furthermore, for the final stage of evolution, our model predicts a sweet slow death of the black hole, whose "slowness" again depends on lambda, in contrast with the violent final explosion predicted by the standard theory.

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