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Surface defects and symmetries
Karlstad University, Faculty of Technology and Science, Department of Physics and Electrical Engineering.ORCID iD: 0000-0003-4081-6234
Univ Hamburg, Fachbereich Math, Algebra & Zahlentheorie, D-20148 Hamburg, Germany..ORCID iD: 0000-0003-1342-6230
2015 (English)In: XXXTH International Colloquium on Group Theoretical Methods in Physics (ICGTMP) (GROUP30), Institute of Physics (IOP), 2015, 012002Conference paper (Refereed)Text
Abstract [en]

In quantum field theory, defects of various codimensions are natural ingredients and carry a lot of interesting information. In this contribution we concentrate on topological quantum field theories in three dimensions, with a particular focus on Dijkgraaf-Witten theories with abelian gauge group. Surface defects in Dijkgraaf-Witten theories have applications in solid state physics, topological quantum computing and conformal field theory. We explain that symmetries in these topological field theories are naturally defined in terms of invertible topological surface defects and are thus Brauer-Picard groups.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2015. 012002
Journal of Physics Conference Series, ISSN 1742-6588 ; 597
National Category
Physical Sciences
Research subject
URN: urn:nbn:se:kau:diva-41650DOI: 10.1088/1742-6596/597/1/012002ISI: 000354929400002OAI: diva2:918436
30th International Colloquium on Group Theoretical Methods in Physics (ICGTMP), Jul 14-18, 2014, Ghent, Belgium
Available from: 2016-04-11 Created: 2016-04-11 Last updated: 2016-05-31Bibliographically approved

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Fuchs, JürgenSchweigert, Christoph
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