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dc.contributor.authorKeller, Christoph A
dc.contributor.authorZadeh, Ida G
dc.date.accessioned2020-08-11T20:19:07Z
dc.date.available2020-08-11T20:19:07Z
dc.date.issued2020-03-06
dc.identifier.citationChristoph A Keller and Ida G Zadeh 2020 J. Phys. A: Math. Theor. 53 095401en_US
dc.identifier.issn1751-8113
dc.identifier.doi10.1088/1751-8121/ab6b91
dc.identifier.urihttp://hdl.handle.net/10150/642218
dc.description.abstractWe investigate second order conformal perturbation theory for Z(2) orbifolds of conformal field theories in two dimensions. To evaluate the necessary twisted sector correlation functions and their integrals, we map them from the sphere to its torus double cover. We discuss how this relates crossing symmetry to the modular group, and introduce a regularization scheme on the cover that allows to evaluate the integrals numerically. These methods do not require supersymmetry. As an application, we show that in the torus orbifold of 8 and 16 free bosons, Z(2) twist fields are marginal at first order, but stop being marginal at second order.en_US
dc.language.isoenen_US
dc.publisherIOP PUBLISHING LTDen_US
dc.rights© 2020 IOP Publishing Ltd.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectconformal field theoryen_US
dc.subjectdiscrete orbifoldsen_US
dc.subjectconformal perturbation theoryen_US
dc.titleConformal perturbation theory for twisted fieldsen_US
dc.typeArticleen_US
dc.identifier.eissn1751-8121
dc.contributor.departmentUniv Arizona, Dept Mathen_US
dc.identifier.journalJOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICALen_US
dc.description.note12 month embargo; published online: 4 February 2020en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal accepted manuscripten_US
dc.source.journaltitleJournal of Physics A: Mathematical and Theoretical
dc.source.volume53
dc.source.issue9
dc.source.beginpage095401


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