Superstring vertex operators in an AdS5×S5 background Original

A quantizable action has recently been proposed for the superstring in an AdS5×S5 background with Ramond–Ramond flux. In this paper we construct physical vertex operators corresponding to on-shell fluctuations around the AdS5×S5 background. The structure of these AdS5×S5 vertex operators closely resembles the structure of the massless vertex operators in a flat background.