Attractors and Black Rings

Details Attractors and Black Rings Attractors and Black Rings

2005-03-28

arxiv.org/abs/hep-th/0503219v1

Phys.Rev. D72 (2005) 024010

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, Harvmac

Scientific paper

10.1103/PhysRevD.72.024010

The attractor mechanism is usually thought of as the fixing of the near horizon moduli of a BPS black hole in terms of conserved charges measured at infinity. Recent progress in understanding BPS solutions in five dimensions indicates that this is an incomplete story. Moduli can instead be fixed in terms of dipole charges, and their corresponding values can be found by extremizing a certain attractor function built out of these charges. BPS black rings provide an example of this phenomenon. We give a general derivation of the attractor mechanism in five dimensions based on the recently developed classification of BPS solutions. This analysis shows when it is the dipole charges versus the conserved charges that fix the moduli. It also yields explicit expressions for the fixed moduli.

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