Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2002-11-30
Nucl.Phys. B665 (2003) 189-210
Physics
High Energy Physics
High Energy Physics - Theory
20 pages, no figures, LaTeX; v2: Minor improvements, to appear in Nucl. Phys. B
Scientific paper
10.1016/S0550-3213(03)00484-X
The SO(4) isometry of the extreme Reissner-Nordstrom black hole of N=1, D=5 supergravity can be partly broken, without breaking any supersymmetry, in two different ways. The ``right'' solution is a rotating black hole (BMPV); the ``left'' is interpreted as a black hole in a Godel universe. In ten dimensions, both spacetimes are described by deformations of the D1-D5-pp-wave system with the property that the non-trivial Closed Timelike Curves of the five dimensional manifold are absent in the universal covering space of the ten dimensional manifold. In the decoupling limit, the BMPV deformation is normalizable. It corresponds to the vev of an IR relevant operator of dimension \Delta=1. The Godel deformation is sub-leading in \alpha' unless we take an infinite vorticity limit; in such case it is a non-normalizable perturbation. It corresponds to the insertion of a vector operator of dimension \Delta=5. Thus we conclude that from the dual (1+1)-CFT viewpoint the SO(4) R-symmetry is broken `spontaneously' in the BMPV case and explicitly in the Godel case.
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