Volume 83, Number 1, July 2008
|Number of page(s)||6|
|Published online||24 June 2008|
Supermassive black holes as giant Bose-Einstein condensates
Institute for Theoretical Physics, University of Amsterdam - Valckenierstraat 65, 1018 XE Amsterdam, The Netherlands, EU
Corresponding author: email@example.com
Accepted: 26 May 2008
The Schwarzschild metric has a divergent energy density at the horizon, which motivates a new approach to black holes. If matter is spread uniformly throughout the interior of a supermassive black hole, with mass M~ M = 2.34 108M, it may arise from a Bose-Einstein condensate of densely packed H atoms. Within the relativistic theory of gravitation with a positive cosmological constant, a bosonic quantum field is coupled to the curvature scalar. In the Bose-Einstein condensed ground state an exact, self-consistent solution for the metric is presented. It is regular with a specific shape at the origin. The redshift at the horizon is finite but large, z~ 1014M/M. The binding energy remains as an additional parameter to characterize the BH; alternatively, the mass observed at infinity can be any fraction of the rest mass of its constituents.
PACS: 04.70.Bw – Classical black holes / 04.20.Cv – Fundamental problems and general formalism / 04.20.Jb – Exact solutions
© EPLA, 2008
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