The Quantum Superstring as a WZNW Model

Preprint

7 July 2003

preprint
Published by arXiv in arXiv

Abstract

We present a new development in our approach to the covariant quantization of superstrings in 10 dimensions which is based on a gauged WZNW model. The WZNW action reduces to our earlier free-field quantum action after a field redefinition, and to the Green-Schwarz classical action after constraining the current in Berkovits' BRST charge to vanish. Physical states form the cohomology of a BRST charge Q, with vanishing grading and invariant under a dual charge B_0. We also present a first-order approach to the superparticle which automatically produces a ghost pair introduced earlier by hand, and we introduce worldsheet diffeomorphism ghosts. The present formulation is shown to be physically equivalent to our earlier work.

Keywords

All Related Versions

Version 1, 2003-07-07, ArXiv
Version 2, 2003-07-23, ArXiv
Version 3, 2003-08-11, ArXiv
Published version: Nuclear Physics B, 676 (1-2), 43.

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