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arXiv · hep-th/9411150

The Berkovits-Vafa Construction and Nonlinear Realizations

I. N. McArthur
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Abstract

Berkovits and Vafa recently showed that critical string theories can be considered as critical superstring theories with a special choice of background. The embedding of the Virasoro algebra into the super-Virasoro algebra involved in this construction has been extended to the noncritical case by Berkovits and Ohta. It is shown that the resulting nonlinear realization of the super-Virasoro algebra can be interpreted using standard techniques from the theory of nonlinear realizations. This extends earlier work of Kunitomo.

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I. N. McArthur. 1994-11-21. The Berkovits-Vafa Construction and Nonlinear Realizations. https://doi.org/10.1016/0370-2693(94)01455-l

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