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Toward the Universal Theory of Strings

Fiorenzo Bastianelli, Nobuyoshi Ohta, Jens Lyng Petersen

hep-tharXiv:hep-th/9402042

Abstract

We show that the N=2 superstrings may be viewed as a special class of the N=4 superstrings and demonstrate their equivalence. This allows us to realize all known string theories based on linear algebras and with N<4 supersymmetries as special choices of the vacua in the N=4 superstring.

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