3 - Branes and Uniqueness of the Salam - Sezgin Vacuum
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چکیده
We prove the uniqueness of the supersymmetric Salam-Sezgin (Minkowski) 4 ×S 2 ground state among all nonsingular solutions with a four-dimensional Poincaré, 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 positive tension.
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تاریخ انتشار 2003