Cosmic p-branes

Details Cosmic p-branes Cosmic p-branes

1995-10-27

arxiv.org/abs/hep-th/9510202v2

Nucl.Phys. B467 (1996) 159-182

Physics

High Energy Physics

High Energy Physics - Theory

Updated to agree with published version, (section 6 expanded) 26 pages, plain tex

Scientific paper

10.1016/0550-3213(96)00089-2

We consider the metrics for cosmic strings and $p$-branes in spacetime dimension $N>4$, that is, we look for solutions to Einstein-Maxwell-Dilaton gravity in $N$-dimensions with boost symmetry in the $p$-directions along the brane. Focussing first in detail on the five dimensional uncharged cosmic string we discuss the solution, which turns out to have a naked singularity on the brane, as well as considering its Kaluza-Klein reduction. We show how singularities may be avoided with particular core models. We then derive the general uncharged $p$-brane solution in arbitrary dimension. Finally, we consider an Einstein-Maxwell-Dilaton action, with arbitrary value of the dilaton coupling parameter, deriving the solutions for electrically and magnetically charged branes, as well as a class of self-dual branes.

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