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dc.contributor.authorSmith, Philip Boyle
dc.contributor.authorTong, David
dc.date.accessioned2020-12-25T16:09:07Z
dc.date.available2020-12-25T16:09:07Z
dc.date.issued2020-09-02
dc.date.submitted2020-06-09
dc.identifier.otherjhep09(2020)018
dc.identifier.other13719
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/315611
dc.description.abstractAbstract: We study boundary states for Dirac fermions in d = 1 + 1 dimensions that preserve Abelian chiral symmetries, meaning that the left- and right-moving fermions carry different charges. We derive simple expressions, in terms of the fermion charge assignments, for the boundary central charge and for the ground state degeneracy of the system when two different boundary conditions are imposed at either end of an interval. We show that all such boundary states fall into one of two classes, related to SPT phases supported by (−1)F , which are characterised by the existence of an unpaired Majorana zero mode.
dc.languageen
dc.publisherSpringer Berlin Heidelberg
dc.subjectRegular Article - Theoretical Physics
dc.subjectConformal Field Theory
dc.subjectField Theories in Lower Dimensions
dc.subjectTopological States of Matter
dc.titleBoundary states for chiral symmetries in two dimensions
dc.typeArticle
dc.date.updated2020-12-25T16:09:06Z
prism.issueIdentifier9
prism.publicationNameJournal of High Energy Physics
prism.volume2020
dc.identifier.doi10.17863/CAM.62717
dcterms.dateAccepted2020-08-06
rioxxterms.versionofrecord10.1007/jhep09(2020)018
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by/4.0/
dc.identifier.eissn1029-8479
dc.identifier.arxiv1912.01602


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