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Suppression and restoration of disorder-induced light localization mediated by PT-symmetry breaking
Yaroslav V. Kartashov, Chao Hang, Vladimir V. Konotop +3
We uncover that the breaking point of the PT-symmetry in optical waveguide arrays has a dramatic impact on light localization induced by the off-diagonal disorder. Specifically, wh…
Topological states in partially-PT-symmetric azimuthal potentials
Yaroslav V. Kartashov, Vladimir V. Konotop, Lluis Torner
We introduce partially-parity-time-symmetric (pPT-symmetric) azimuthal potentials composed from individual PT-symmetric cells located on a ring, where two azimuthal directions are…
Dynamic versus Anderson wavepacket localization
Olga V. Borovkova, Valery E. Lobanov, Yaroslav V. Kartashov +2
We address the interplay between two fundamentally different wavepacket localization mechanisms, namely resonant dynamic localization due to collapse of quasi-energy bands in perio…
Self-deflecting plasmonic lattice solitons and sur-face modes in chirped plasmonic arrays
Chunyan Li, Ran Cui, Fangwei Ye +3
We show that chirped metal-dielectric waveguide arrays with focusing cubic nonlinearity can support plasmonic lattice solitons that undergo self-deflection in the transverse plane.…
Stabilization of spatiotemporal solitons in Kerr media by dispersive coupling
Yaroslav V. Kartashov, Boris A. Malomed, Vladimir V. Konotop +2
We introduce a mechanism to stabilize spatiotemporal solitons in Kerr nonlinear media, based on the dispersion of linear coupling between the field components forming the soliton s…