6533b832fe1ef96bd129ae0f
RESEARCH PRODUCT
Lieb polariton topological insulators
Albert FerrandoLluis TornerLluis TornerDmitry V. SkryabinDmitry V. SkryabinChunyan LiYaroslav V. KartashovYaroslav V. KartashovYaroslav V. KartashovFangwei YeXianfeng Chensubject
FOS: Physical sciences02 engineering and technologyPattern Formation and Solitons (nlin.PS)01 natural sciencesSolitonssymbols.namesakeLattice (order)0103 physical sciencesMesoscale and Nanoscale Physics (cond-mat.mes-hall)Polariton:Física::Electromagnetisme [Àrees temàtiques de la UPC]010306 general physicsPhysicsCondensed Matter::Quantum GasesZeeman effectCondensed Matter - Mesoscale and Nanoscale PhysicsCondensed matter physicsMagnetic energybusiness.industry021001 nanoscience & nanotechnologyNonlinear Sciences - Pattern Formation and SolitonsNonlinear systemSemiconductorTopological insulatorsymbolsQuasiparticle0210 nano-technologybusinessPhysics - OpticsOptics (physics.optics)description
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-02-12 |