Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcations
Abstract
We 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.Citation
Sigurdsson, 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).Publisher
American Physical SocietyJournal
Physical Review BAdditional Links
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.100.235444Type
Journal articleLanguage
enDescription
This 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.ISSN
2469-9950EISSN
2469-9969ae974a485f413a2113503eed53cd6c53
10.1103/PhysRevB.100.235444
Scopus Count
Collections
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-nd/4.0/