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dc.contributor.authorOhadi, H.
dc.contributor.authordel Valle-Inclan Redondo, Y.
dc.contributor.authorRamsay, A. J.
dc.contributor.authorHatzopoulos, Z.
dc.contributor.authorLiew, T. C. H.
dc.contributor.authorEastham, P. R.
dc.contributor.authorSavvidis, P. G.
dc.contributor.authorBaumberg, J. J.
dc.identifier.citationOhadi , H , del Valle-Inclan Redondo , Y , Ramsay , A J , Hatzopoulos , Z , Liew , T C H , Eastham , P R , Savvidis , P G & Baumberg , J J 2018 , ' Synchronization crossover of polariton condensates in weakly disordered lattices ' , Physical Review. B, Condensed matter and materials physics , vol. 97 , no. 19 , 195109 .
dc.identifier.otherPURE: 252505118
dc.identifier.otherPURE UUID: 984b3b3c-9481-47ed-a6a5-772f4247827b
dc.identifier.otherBibCode: 2018arXiv180303195O
dc.identifier.otherScopus: 85047208603
dc.identifier.otherORCID: /0000-0001-6418-111X/work/45160541
dc.identifier.otherWOS: 000432027300001
dc.description.abstractWe demonstrate that the synchronization of a lattice of solid-state condensates when inter-site tunnelling is switched on, depends strongly on the weak local disorder. This finding is vital for implementation of condensate arrays as computation devices. The condensates here are nonlinear bosonic fluids of exciton-polaritons trapped in a weakly disordered Bose-Hubbard potential, where the nearest neighboring tunneling rate (Josephson coupling) can be dynamically tuned. The system can thus be tuned from a localized to a delocalized fluid as the number density, or the Josephson coupling between nearest neighbors increases.The localized fluid is observed as a lattice of unsynchronized condensates emitting at different energies set by the disorder potential. In the delocalized phase the condensates synchronize, and long-range order appears, evidenced by narrowing of momentum and energy distributions, new diffraction peaks in momentum space, and spatial coherence between condensates. Our work identifies similarities and differences of this nonequilibrium crossover to the traditional Bose-glass to superfluid transition in atomic condensates.
dc.relation.ispartofPhysical Review. B, Condensed matter and materials physicsen
dc.rights© 2018, American Physical Society. This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.titleSynchronization crossover of polariton condensates in weakly disordered latticesen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Physics and Astronomyen
dc.description.statusPeer revieweden

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