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Strings in Nontrivial Gravitino and Ramond-Ramond Backgrounds

Ioannis Giannakis

hep-tharXiv:hep-th/0205219

Abstract

In this paper we discuss deformations of the BRST operator of the fermionic string. These deformations preserve nilpotency of the BRST operator and correspond to turning on infinitesimal Gravitino and Ramond-Ramond spacetime fields.

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