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dc.contributor.authorBorgh, Magnus
dc.contributor.authorFranchetti, Guido
dc.contributor.authorKeeling, Jonathan
dc.contributor.authorBerloff, Natalia
dc.identifier.citationBorgh , M , Franchetti , G , Keeling , J & Berloff , N 2012 , ' Robustness and observability of rotating vortex lattices in an exciton-polariton condensate ' , Physical Review. B, Condensed matter and materials physics , vol. 86 , no. 3 , 035307 .
dc.identifier.otherPURE: 23888624
dc.identifier.otherPURE UUID: 783dd042-736c-40cb-ae44-13808b85b9ff
dc.identifier.otherBibtex: urn:0f97930e867e24fa0466094915eb1fc5
dc.identifier.otherScopus: 84863661338
dc.identifier.otherORCID: /0000-0002-4283-552X/work/27559431
dc.description.abstractExciton-polariton condensates display a variety of intriguing pattern-forming behaviors, particularly when confined in potential traps. It has previously been predicted that triangular lattices of vortices of the same sign will form spontaneously as the result of surface instabilities in a harmonic trap. However, natural disorder, deviation of the external potential from circular symmetry, or higher-order terms modifying the dynamical equations may all have detrimental effects and destabilize the circular trajectories of vortices. Here we address these issues, by characterizing the robustness of the vortex lattice against disorder and deformations of the trapping potential. Since most experiments use time integrated measurements it would be hard to observe directly the rotating vortex lattices or distinguish them from vortex-free states. We suggest how these difficulties can be overcome and present an experimentally viable interference-imaging scheme that would allow the detection of rotating vortex lattices.
dc.relation.ispartofPhysical Review. B, Condensed matter and materials physicsen
dc.rights© 2012 American Physical Societyen
dc.subjectQC Physicsen
dc.titleRobustness and observability of rotating vortex lattices in an exciton-polariton condensateen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Condensed Matter Physicsen
dc.description.statusPeer revieweden

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