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24 January 2021
 
  » arxiv » arxiv.0705.1068

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Symmetry-breaking boundary states for WZW models
Daniel Blakeley ; Andreas Recknagel ;
Date 8 May 2007
Subject High Energy Physics - Theory (hep-th)
AbstractStarting with the SU(2)_k WZW model, we construct boundary states that generically preserve only a parafermion times Virasoro subalgebra of the full affine Lie algebra symmetry of the bulk model. The boundary states come in families: intervals for generic k, quotients of SU(2) by discrete groups if k is a square. In that case, special members of the families can be viewed as superpositions of rotated Cardy branes. Using embeddings of SU(2) into higher groups, the new boundary states can be lifted to symmetry-breaking branes for other WZW models.
Source arXiv, arxiv.0705.1068
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