Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcations
Spontaneous topological transitions in a honeycomb lattice of exciton-polariton condensates due to spin bifurcations
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 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.
1-5
Sigurdsson, H.
c6380293-fe97-4fd0-a819-cf35721d4e5d
Krivosenko, Y.S.
f00ada34-8b72-40b0-bcb0-a34ec32ee837
Iorsh, I.V.
22043d02-b6a3-4a7a-8589-0524efbca150
Shelykh, I.A.
7dad78b3-4681-410a-abf2-39f3bb16c41f
Nalitov, A.
9d5112f1-a770-4ef4-a145-59f394365305
December 2019
Sigurdsson, H.
c6380293-fe97-4fd0-a819-cf35721d4e5d
Krivosenko, Y.S.
f00ada34-8b72-40b0-bcb0-a34ec32ee837
Iorsh, I.V.
22043d02-b6a3-4a7a-8589-0524efbca150
Shelykh, I.A.
7dad78b3-4681-410a-abf2-39f3bb16c41f
Nalitov, A.
9d5112f1-a770-4ef4-a145-59f394365305
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), , [235444].
(doi:10.1103/PhysRevB.100.235444).
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 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.
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Accepted/In Press date: 6 December 2019
e-pub ahead of print date: 23 December 2019
Published date: December 2019
Identifiers
Local EPrints ID: 436608
URI: http://eprints.soton.ac.uk/id/eprint/436608
ISSN: 2469-9969
PURE UUID: a5738ac3-eb1d-42c0-a901-e1197472ecc4
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Date deposited: 18 Dec 2019 17:30
Last modified: 16 Mar 2024 05:44
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Contributors
Author:
Y.S. Krivosenko
Author:
I.V. Iorsh
Author:
I.A. Shelykh
Author:
A. Nalitov
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