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dc.contributor.authorGao, T.
dc.contributor.authorEgorov, O. A.
dc.contributor.authorEstrecho, E.
dc.contributor.authorWinkler, K.
dc.contributor.authorKamp, M.
dc.contributor.authorScheider, C.
dc.contributor.authorHöfling, Sven
dc.contributor.authorTruscott, A. G.
dc.contributor.authorOstrovskaya, E. A.
dc.identifier.citationGao , T , Egorov , O A , Estrecho , E , Winkler , K , Kamp , M , Scheider , C , Höfling , S , Truscott , A G & Ostrovskaya , E A 2018 , ' Controlled ordering of topological charges in an exciton-polariton chain ' , Physical Review Letters , vol. 121 , no. 22 , 225302 .
dc.identifier.otherPURE: 256640191
dc.identifier.otherPURE UUID: 8f2169bc-1b9f-43ce-a158-01394202c1fb
dc.identifier.otherScopus: 85057630249
dc.identifier.otherWOS: 000451580700009
dc.description.abstractWe demonstrate, experimentally and theoretically, controlled loading of an exciton-polariton vortex chain into a 1D array of trapping potentials. Switching between two types of vortex chains, with topological charges of the same or alternating sign, is achieved by appropriately shaping an off-resonant pump beam that drives the system to the regime of bosonic condensation. In analogy to spin chains, these vortex sequences realise either a "ferromagnetic" or an "anti-ferromagnetic" order, whereby the role of spin is played by the orbital angular momentum. The ferromagnetic ordering of vortices is associated with the formation of a persistent chiral current. Our results pave the way for the controlled creation of nontrivial distributions of orbital angular momentum and topological order in a periodic exciton-polariton system.
dc.relation.ispartofPhysical Review Lettersen
dc.rights© 2018, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the author created accepted version manuscript following peer review and as such may differ slightly from the final published version. The final published version of this work is available at
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleControlled ordering of topological charges in an exciton-polariton chainen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews.Condensed Matter Physicsen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

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