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Bound states in the continuum in a two-dimensional PT-symmetric system
Yaroslav V. Kartashov, Carles Milian, Vladimir V. Konotop +1
We address a two-dimensional parity-time (PT)-symmetric structure built as a chain of waveguides, where all waveguides except for the central one are conservative, while the centra…
PT-symmetry in nonlinear twisted multi-core fibers
Xiao Zhang, Victor A. Vysloukh, Yaroslav V. Kartashov +3
We address propagation of light in nonlinear twisted multi-core fibers with alternating amplifying and absorbing cores that are arranged into the PT - symmetric structure. In this…
Edge states in dynamical superlattices
Yiqi Zhang, Yaroslav V. Kartashov, Feng Li +4
We address edge states and rich localization regimes available in the one-dimensional (1D) dynamically modulated superlattices, both theoretically and numerically. In contrast to c…
-symmetric coupler with intermodal dispersion
Dmitry A. Zezyulin, Yaroslav V. Kartashov, Vladimir V. Konotop
A dual-core waveguide with balanced gain and loss in different arms and with intermodal coupling is considered. The system is not invariant under the conventional symmetry but…