Regular Article - Theoretical Physics
Can black holes be torn up by phantom dark energy in cyclic cosmology?
Department of Physics, College of Sciences, Northeastern University, Shenyang, 110004, People’s Republic of China
2 Kavli Institute for Theoretical Physics China at the Chinese Academy of Sciences, P.O. Box 2735, Beijing, 100080, People’s Republic of China
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Revised: 2 February 2009
Published online: 12 March 2009
Infinitely cyclic cosmology is often frustrated by the black hole problem. It has been speculated that this obstacle in cyclic cosmology can be removed by taking into account a peculiar cyclic model derived from loop quantum cosmology or the braneworld scenario, in which phantom dark energy plays a crucial role. In this peculiar cyclic model, the mechanism of solving the black hole problem is through tearing up black holes by phantom. However, using the theory of fluid accretion onto black holes, we show in this paper that there exists another possibility: that black holes cannot be torn up by phantom in this cyclic model. We discussed this possibility and showed that the masses of black holes might first decrease and then increase, through phantom accretion onto black holes in the expanding stage of the cyclic universe.
PACS: 98.80.-k – / 95.36.+x – / 04.70.-s –
© Springer-Verlag, 2009