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Duality and defects in rational conformal field theory | | Jürg Fröhlich
; Jürgen Fuchs
; Ingo Runkel
; Christoph Schweigert
; | | Date: |
30 Jul 2006 | | Abstract: | We study topological defect lines in two-dimensional rational conformal field theory. Continuous variation of the location of such a defect does not change the value of a correlator. Defects separating different phases of local CFTs with the same chiral symmetry are included in our discussion. We show how the resulting one-dimensional phase boundaries can be used to extract symmetries and order-disorder dualities of the CFT.
The case of central charge c=4/5, for which there are two inequivalent world sheet phases corresponding to the tetra-critical Ising model and the critical three-states Potts model, is treated as an illustrative example. | | Source: | arXiv, hep-th/0607247 | | Services: | Forum | Review | PDF | Favorites | |
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