WZW branes and gerbes

Details WZW branes and gerbes WZW branes and gerbes

2002-05-22

arxiv.org/abs/hep-th/0205233v1

Rev.Math.Phys. 14 (2002) 1281-1334

Physics

High Energy Physics

High Energy Physics - Theory

latex, 4 figures incorporated

Scientific paper

10.1142/S0129055X02001557

We reconsider the role that bundle gerbes play in the formulation of the WZW model on closed and open surfaces. In particular, we show how an analysis of bundle gerbes on groups covered by SU(N) permits to determine the spectrum of symmetric branes in the boundary version of the WZW model with such groups as the target. We also describe a simple relation between the open string amplitudes in the WZW models based on simply connected groups and in their simple-current orbifolds.

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