Duality as a Gauge Symmetry and Topology Change

1993/10/04 by Amit Giveon, Giveon, Amit
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th

paper · pdf · doi:10.48550/arxiv.hep-th/9310016

10 pages, RI-153-93

arxiv created 1993/10/04 · arxiv updated 2009/11/30

Abstract

Duality groups as (spontaneously broken) gauge symmetries for toroidal backgrounds, and their role in (∞-dimensional) underlying string gauge algebras are reviewed. For curved backgrounds, it is shown that there is a duality in the moduli space of WZNW sigma-models, that can be interpreted as a broken gauge symmetry. In particular, this duality relates the backgrounds corresponding to axially gauged abelian cosets, G/U(1)_a, to vectorially gauged abelian cosets, G/U(1)_v. Finally, topology change in the moduli space of WZNW sigma-models is discussed.

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