Vertex Operators for Irregular Conformal Blocks: Supersymmetric Case

Understand

We construct supersymmetric irregular vertex operators of arbitrary rank, appearing in the colliding limit of primary fields.

• We find that the structure of the supersymmetric irregular vertices differs significantly from the bosonic case: upon supersymmetrization, the irregular operators are no longer the eigenstates of positive Virasoro and $W_N$ generators but block-diagonalize them.
• We relate the block-diagonal structure of the irregular vertices to contributions of the Ramond sector to the colliding limit.