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Construction of String Solutions around Non-trivial Backgrounds

Costas Kounnas
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Abstract

We present a way of constructing string solutions around non-trivial gravitational backgrounds. The proposed solutions are constructed using $N = 4$ superconformal building blocks with $\hat c = 4$. We give two different and inequivalent realizations of non-trivial four-dimensional subspaces, and we show the emergence of the $N = 4$ globally defined superconformal symmetry. The existence of $N = 4$ world-sheet symmetry stabilizes our solutions and implies in target space a number of covariantized supersymmetries around space-time dependent gravitational and dilaton backgrounds.

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Costas Kounnas. 1993-02-14. Construction of String Solutions around Non-trivial Backgrounds. https://arxiv.org/abs/hep-th/9302058

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