We theoretically investigate polariton condensates trapped in pillar microcavities ordered in honeycomb lattices. We consider the system with TE-TM splitting and external non-uniform magnetic field. Two magnetic patterns, PT - symmetric and antisymmetric, are examined. The band structures of two-dimensional lattices and quasi-one-dimensional systems (ribbons) are calculated. Finally, we compute the Chern numbers and demonstrate the possibility to form a polariton Chern topological insulator with zero average magnetic field.
REFERENCES
1.
I. A.
Shelykh
, A. V.
Kavokin
, Y. G.
Rubo
, T. C. H.
Liew
, and G.
Malpuech
, “Polariton polarization-sensitive phenomena in planar semicon- ductor microcavities
,” Semiconductor Science and Technology
25
, 013001
(2009
).2.
A. V.
Nalitov
, D. D.
Solnyshkov
, and G.
Malpuech
, “Polariton Z topological insulator
,” Phys. Rev. Lett.
114
, 116401
(2015
).3.
C.-E.
Bardyn
, T.
Karzig
, G.
Refael
, and T. C. H.
Liew
, “Topological polaritons and excitons in garden-variety systems
,” Phys. Rev. B
91
, 161413
(2015
).4.
K.
Yi
and T.
Karzig
, “Topological polaritons from photonic dirac cones coupled to excitons in a magnetic field
,” Phys. Rev. B
93
, 104303
(2016
).5.
R.
Ge
, W.
Broer
, and T. C. H.
Liew
, “Floquet topological polaritons in semiconductor microcavities
,” Phys. Rev. B
97
, 195305
(2018
).6.
O.
Bleu
, D. D.
Solnyshkov
, and G.
Malpuech
, “Interacting quantum fluid in a polariton chern insulator
,” Phys. Rev. B
93
, 085438
(2016
).7.
V. K.
Kozin
, I. A.
Shelykh
, A. V.
Nalitov
, and I. V.
Iorsh
, “Topological metamaterials based on polariton rings
,” Phys. Rev. B
98
, 125115
(2018
).8.
T.
Jacqmin
, I.
Carusotto
, I.
Sagnes
, M.
Abbarchi
, D. D.
Solnyshkov
, G.
Malpuech
, E.
Galopin
, A.
Lemaître
, J.
Bloch
, and A.
Amo
, “Direct observation of dirac cones and a flatband in a honeycomb lattice for polaritons
,” Phys. Rev. Lett.
112
, 116402
(2014
).9.
S.
Klembt
, T. H.
Harder
, O. A.
Egorov
, K.
Winkler
, R.
Ge
, M. A.
Bandres
, M.
Emmerling
, L.
Worschech
, T. C. H.
Liew
, M.
Segev
, C.
Schneider
, and S.
Höfling
, “Exciton-polariton topological insulator
,” Nature
562
, 552
–556
(2018
).10.
T.
Byrnes
, N. Y.
Kim
, and Y.
Yamamoto
, “Exciton–polariton condensates
,” Nature Physics
10, 803
EP – (2014
).
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