Extensions of the Virasoro Algebra and Gauged WZW Models

Preprint

5 June 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/9306033

Abstract

To any non-trivial embedding of sl(2) in a (super) Lie algebra, one can associate an extension of the Virasoro algebra. We realize the extended Virasoro algebra in terms of a WZW model in which a chiral, solvable group is gauged, the gauge group being determined by the sl(2) embedding. The resulting BRST cohomology is computed and the field content of the extended Virasoro algebra is determined. The (quantum) closure of the extended Virasoro algebra is shown. Applications such as the quantum Miura transformation and the effective action of the associated extended gravity theory are discussed in detail.

Keywords

EXTENDED VIRASORO
VIRASORO ALGEBRA
GAUGED WZW
WZW MODELS
EMBEDDING
GRAVITY

All Related Versions

Version 1, 1993-06-05, ArXiv
Published version: Physics Letters B, 315 (3-4), 304.

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