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arXiv · hep-th/0307238

3-Branes and Uniqueness of the Salam-Sezgin Vacuum

G. W. Gibbons·R. Guven·C. N. Pope
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Abstract

We prove the uniqueness of the supersymmetric Salam-Sezgin (Minkowski)_4\times S^2 ground state among all nonsingular solutions with a four-dimensional Poincare, de Sitter or anti-de Sitter symmetry. We construct the most general solutions with an axial symmetry in the two-dimensional internal space, and show that included amongst these is a family that is non-singular away from a conical defect at one pole of a distorted 2-sphere. These solutions admit the interpretation of 3-branes with negative tension.

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G. W. Gibbons, R. Guven, C. N. Pope. 2004-05-18. 3-Branes and Uniqueness of the Salam-Sezgin Vacuum. https://doi.org/10.1016/j.physletb.2004.06.048

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