 Recently pure spinors have attracted attention in string theory.In the year 2000 Nathan Berkovits, professor at Instituto de Fisica Teorica in São Paulo-Brazil introduced the pure spinor formalism in his paper Super-Poincare covariant quantization of the superstring.In 2002 Nigel Hitchin introduced generalized Calabi–Yau manifolds in his paper Generalized Calabi–Yau manifolds, where the generalized complex structure is defined by a pure spinor.