Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcations
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AbstractWe theoretically study the spontaneous formation of the quantum anomalous Hall effect in a graphene system of spin-bifurcated exciton-polariton condensates under nonresonant pumping. We demonstrate that, depending on the parameters of the structure, such as intensity of the pump and coupling strength between condensates, the system shows a rich variety of macroscopic magnetic ordering, including analogs of ferromagnetic, antiferromagnetic, and resonant valence bond phases. Transitions between these magnetic polarized phases are associated with dramatic reshaping of the spectrum of the system connected with spontaneous appearance of topological order.
CitationSigurdsson, H., Krivosenko, Y.S., Iorsh, I.V., Shelykh, I.A. and Nalitov, A. (2019) Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcations. Physical Review B, 100 (23), 1-5. (doi:10.1103/PhysRevB.100.235444).
PublisherAmerican Physical Society
JournalPhysical Review B
DescriptionThis is an accepted manuscript of an article published by American Physical Society in Physical Review B on 23/12/2019, available online: https://doi.org/10.1103/PhysRevB.100.235444 The accepted version of the publication may differ from the final published version.
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/