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Construction of Superstrings in Wormhole-Like Backgrounds

C. Kounnas

hep-tharXiv:hep-th/9402080

Abstract

We construct a class of superstring solutions in non trivial space-time. The existence of an N=4 world-sheet superconformal symmetry stabilizes our solutions under perturbative string loop corrections and implies in target space some unbroken space-time supersymmetries.

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