nLab
pure spinor

Contents

Idea

A pure spinor is a spinors with vanishing spinor-to-vector pairing

ψ¯Γ aψ=0. \overline{\psi} \Gamma^a \psi \;=\; 0 \,.

References

See also

Discussion of superstring scattering amplitudes in terms of pure spinors:

Relation to picture changing operators: