251. Lieb polariton topological insulators
- Author
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Li, Chunyan, Ye, Fangwei, Chen, Xianfeng, Kartashov, Yaroslav V., Ferrando, Albert, Torner, Lluis, and Skryabin, Dmitry V.
- Subjects
Condensed Matter - Mesoscale and Nanoscale Physics ,Nonlinear Sciences - Pattern Formation and Solitons ,Physics - Optics - Abstract
We predict that the interplay between the spin-orbit coupling, stemming from the TE-TM energy splitting, and the Zeeman effect in semiconductor microcavities supporting exci- ton-polariton quasi-particles results in the appearance of unidirectional linear topological edge states when the top microcavity mirror is patterned to form a truncated dislocated Lieb lattice of cylindrical pillars. Periodic nonlinear edge states are found to emerge from the linear ones. They are strongly localized across the interface and they are remarkably robust in comparison to their counterparts in hexagonal lattices. Such robustness makes possible the existence of nested unidirectional dark solitons that move steadily along the lattice edge., Comment: 27 pages, 7 figures, to appear in Phys. Rev. B as a Rapid Communications
- Published
- 2018
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