Speaker
Description
The pure spinor superfield formalism gives a systematic and geometric
technique to construct supersymmetric field theories from
algebro-geometric input data. Crucially, this procedure provides
superfield descriptions where the actions of the supersymmetries is
strict and which are compatible with twisting. In this talk, I will
demonstrate the merits of the formalism using the example of
eleven-dimensional supergravity. In particular, I present a uniform
construction of the interacting theory and all its twists realizing them
as generalizations of Poisson--Chern--Simons theory. In addition to
simplifying the computation of twists immensely, this also sheds some
new light on the supergeometric origin of the supergravity theory. The
talk is based on joint work with Ingmar Saberi.
