Exciton Polaritons in a Two-Dimensional Lieb Lattice with Spin-Orbit Coupling

被引：127

作者：

Whittaker, C. E. ^{[1
]}

Cancellieri, E. ^{[1
,3
]}

Walker, P. M. ^{[1
]}

Gulevich, D. R. ^{[2
]}

Schomerus, H. ^{[3
]}

Vaitiekus, D. ^{[1
]}

Royall, B. ^{[1
]}

Whittaker, D. M. ^{[1
]}

Clarke, E. ^{[4
]}

Iorsh, I. V. ^{[2
]}

Shelykh, I. A. ^{[2
,5
]}

Skolnick, M. S. ^{[1
,2
]}

Krizhanovskii, D. N. ^{[1
,2
]}

机构：

[1] Univ Sheffield, Dept Phys & Astron, Sheffield S3 7RH, S Yorkshire, England

[2] ITMO Univ, St Petersburg 197101, Russia

[3] Univ Lancaster, Dept Phys, Lancaster LA1 4YB, England

[4] Univ Sheffield, EPSRC Natl Ctr Technol 3 5, Sheffield S1 3JD, S Yorkshire, England

[5] Univ Iceland, Sci Inst, Dunhagi 3, IS-107 Reykjavik, Iceland

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 120卷 / 09期

基金：

欧洲研究理事会; 英国工程与自然科学研究理事会;

关键词：

BOSE-EINSTEIN CONDENSATION; SYSTEMS; DRIVEN; STATES; MATTER; LIGHT;

D O I：

10.1103/PhysRevLett.120.097401

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study exciton polaritons in a two-dimensional Lieb lattice of micropillars. The energy spectrum of the system features two flat bands formed from S and Px; y photonic orbitals, into which we trigger bosonic condensation under high power excitation. The symmetry of the orbital wave functions combined with photonic spin-orbit coupling gives rise to emission patterns with pseudospin texture in the flat band condensates. Our Letter shows the potential of polariton lattices for emulating flat band Hamiltonians with spin-orbit coupling, orbital degrees of freedom, and interactions.

引用

页数：6

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