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Simple models of three coupled PT-symmetric wave guides allowing for third-order exceptional points

dc.contributor.authorSchnabel, Janen_ZA
dc.contributor.authorCartarius, Holgeren_ZA
dc.contributor.authorMain, Jorgen_ZA
dc.contributor.authorWunner, Gunteren_ZA
dc.contributor.authorHeiss, Walter Dieteren_ZA
dc.date.accessioned2018-06-26T09:27:14Z
dc.date.available2018-06-26T09:27:14Z
dc.date.issued2017-08
dc.identifier.citationSchnabel, J. et al. 2017. Simple models of three coupled PT-symmetric wave guides allowing for third-order exceptional points. Acta Polytechnica 57:454-461, doi:10.14311/AP.2017.57.0454.en_ZA
dc.identifier.isbn1210-2709 (Print)
dc.identifier.issn1805-2363 (Online)
dc.identifier.otherdoi:10.14311/AP.2017.57.0454
dc.identifier.urihttp://hdl.handle.net/10019.1/104093
dc.descriptionCITATION: Schnabel, J. et al. 2017. Simple models of three coupled PT-symmetric wave guides allowing for third-order exceptional points. Acta Polytechnica 57:454-461, doi:10.14311/AP.2017.57.0454.en_ZA
dc.descriptionThe original publication is available at https://ojs.cvut.cz/ojs/index.php/ap/indexen_ZA
dc.description.abstractWe study theoretical models of three coupled wave guides with a PT-symmetric distribution of gain and loss. A realistic matrix model is developed in terms of a three-mode expansion. By comparing with a previously postulated matrix model it is shown how parameter ranges with good prospects of finding a third-order exceptional point (EP3) in an experimentally feasible arrangement of semiconductors can be determined. In addition it is demonstrated that continuous distributions of exceptional points, which render the discovery of the EP3 difficult, are not only a feature of extended wave guides but appear also in an idealised model of infinitely thin guides shaped by delta functions.en_ZA
dc.language.isoen_ZAen_ZA
dc.publisherCzech Technical University--Pragueen_ZA
dc.subjectOptical wave guidesen_ZA
dc.subjectThird-order exceptional pointen_ZA
dc.subjectMatrix modelen_ZA
dc.subjectPT-symmetric waveen_ZA
dc.titleSimple models of three coupled PT-symmetric wave guides allowing for third-order exceptional pointsen_ZA
dc.typeArticleen_ZA
dc.description.versionPublishers versionen_ZA
dc.rights.holderAuthors retain copyrighten_ZA


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