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Solitons in spiraling Vogel lattices
Yaroslav V. Kartashov, Victor A. Vysloukh, Lluis Torner
We address light propagation in Vogel optical lattices and show that such lattices support a variety of stable soliton solutions in both self-focusing and self-defocusing media, wh…
Quasi-compactons and bistability in exciton-polariton condensates
Yaroslav V. Kartashov, Vladimir V. Konotop, Lluis Torner
We address stationary patterns in exciton-polariton condensates supported by a narrow external pump beam, and we discover that even in the absence of trapping potentials, such cond…
Asymmetric solitons and domain walls supported by inhomogeneous defocusing nonlinearity
Yaroslav V. Kartashov, Valery E. Lobanov, Boris A. Malomed +1
We show that an inhomogeneous defocusing nonlinearity that grows toward the periphery in the positive and negative transverse directions at different rates can support strongly asy…
Soliton generation by counteracting gain-guiding and self-bending
Valery E. Lobanov, Yaroslav V. Kartashov, Victor A. Vysloukh +1
We introduce a new concept for stable spatial soliton formation, mediated by the competition between self-bending induced by a strongly asymmetric nonlocal nonlinearity and spatial…
Anderson localization in Bragg-guiding arrays with negative defects
Valery E. Lobanov, Yaroslav V. Kartashov, Victor A. Vysloukh +1
We show that Anderson localization is possible in waveguide arrays with periodically-spaced defect waveguides having lower refractive index. Such localization is mediated by Bragg…
Stable surface solitons in truncated complex potentials
Yingji He, Dumitru Mihalache, Xing Zhu +2
We show that surface solitons in the one-dimensional nonlinear Schrödinger equation with truncated complex periodic potential can be stabilized by linear homogeneous losses, which…