# SIS

## Seminar

### Gauged linear sigma model for the AdS$_5$xS$^5$ superstring

Berkovits, N (IFT-UNESP, Sao Paulo)
Tuesday 11 December 2007, 11:30-12:30

Seminar Room 1, Newton Institute

#### Abstract

Using the pure spinor formalism, a gauged linear sigma model is constructed for the superstring on AdS_5xS^5. In the zero radius limit, the Coulomb branch of this sigma model is interpreted as D-brane holes which are related to gauge invariant N=4 d=4 super-Yang-Mills operators. As in the Gopakumar-Vafa-Ooguri derivation of open-closed duality for Chern-Simons theory, this construction may lead to a worldsheet derivation of the Maldacena conjecture.

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