Lieb polariton topological insulators

Chunyan Li, Fangwei Ye, Xianfeng Chen, Yaroslav V. Kartashov, Albert Ferrando, Lluis Torner, Dmitry V. Skryabin

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

We predict that the interplay between the spin-orbit coupling, stemming from the transverse electric-transverse magnetic energy splitting, and the Zeeman effect in semiconductor microcavities supporting exciton-polariton quasiparticles, 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 honeycomb lattices. Such robustness makes possible the existence of nested unidirectional dark solitons that move steadily along the lattice edge.

Original languageEnglish
Article number081103
JournalPhysical Review B
Volume97
Issue number8
DOIs
Publication statusPublished - 12 Feb 2018

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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