A bstract In this work, the DDF-like approach to the pure spinor cohomology is extended to
the next ghost number level, the so called antifields. In a direct (supersymmetric) parallel to …

A bstract Using the pure spinor formalism for the superstring in an AdS 5× S 5 background, a
simple expression is found for half-BPS vertex operators. At large radius, these vertex …

A bstract In this work, a supersymmetric DDF-like construction within the pure spinor
formalism is presented. Starting with the light-cone massless vertices, the …

A bstract Previous attempts to determine the worldsheet origin of the pure spinor formalism
were not completely successful, but introduced important concepts that seem to be …

The D= 11 pure spinor formulation of the superparticle allows a simple realization of
covariant quantization, unlike the D= 11 Brink-Schwarz-like superparticle. We explicitly show …

A bstract In this work we give an explicit construction for the vertex operators of massless
states in the pure spinor superstring in a plane wave background. The construction is based …

This thesis is based in part of my work during the Ph. D. and aims to present a detailed
analysis of some newly studied properties of the composite non-minimal pure spinor b …