Strings in Nontrivial Gravitino and Ramond-Ramond Backgrounds
arXiv:hep-th/0205219 · doi:10.1063/1.1454361
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.
6 pages, Latex; Based on a talk given at the 10th International Symposium on String Theory, Towha University, Fukuoka, Japan, July 2001