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Duality and defects in rational conformal field theory
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering.ORCID iD: 0000-0003-4081-6234
2007 (English)In: Nuclear Physics B 763 (2007)Article in journal (Refereed)
Abstract [en]

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

Place, publisher, year, edition, pages
2007.
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-18467OAI: oai:DiVA.org:kau-18467DiVA: diva2:592102
Available from: 2013-01-21 Created: 2013-01-21 Last updated: 2014-11-21

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http://dx.doi.org/10.1016/j.nuclphysb.2006.11.017http://xxx.lanl.gov/abs/hep-th/0607247

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Fuchs, Jürgen
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