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Topological defects for the free boson CFT
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering.ORCID iD: 0000-0003-4081-6234
2007 (English)In: Journal of Physics A 40 (2007)Article in journal (Refereed)
Abstract [en]

Two different conformal field theories can be joined together along a defect line. We study such defects for the case where the conformal field theories on either side are single free bosons compactified on a circle. We concentrate on topological defects for which the left- and right-moving Virasoro algebras are separately preserved, but not necessarily any additional symmetries. For the case where both radii are rational multiples of the self-dual radius we classify these topological defects. We also show that the isomorphism between two T-dual free boson conformal field theories can be described by the action of a topological defect, and hence that T-duality can be understood as a special type of order-disorder duality

Place, publisher, year, edition, pages
2007.
National Category
Physical Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:kau:diva-24963OAI: oai:DiVA.org:kau-24963DiVA: diva2:598736
Available from: 2013-01-22 Created: 2013-01-22 Last updated: 2014-11-21

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http://xxx.lanl.gov/abs/0705.3129http://dx.doi.org/10.1088/1751-8113/40/37/016

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Fuchs, Jürgen
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