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arXiv · hep-th/9710207

Block-Orthogonal Brane Systems, Black Holes and Wormholes

K. A. Bronnikov
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Abstract

Multidimensional cosmological, static spherically symmetric and Euclidean configurations are described in a unified way for gravity interacting with several dilatonic fields and antisymmetric forms, associated with electric and magnetic p-branes. Exact solutions are obtained when certain vectors, built from the input parameters of the model, are either orthogonal in the minisuperspace, or form mutually orthogonal subsystems. Some properties of black-hole solutions are indicated, in particular, a no-hair-type theorem and restrictions emerging in models with multiple times. From the non-existence of Lorentzian wormholes, a universal restriction is obtained, applicable to orthogonal or block-orthogonal subsystems of any p-brane systems. Euclidean wormhole solutions are found, their actions and radii are explicitly calculated.

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K. A. Bronnikov. 1999-12-12. Block-Orthogonal Brane Systems, Black Holes and Wormholes. https://arxiv.org/abs/hep-th/9710207

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