Families of nonlinear skin modes emerge from linear ones in the Hatano-Nelson model with Kerr nonlinearity, exhibiting enhanced localization for focusing and reduced localization for defocusing nonlinearity.
Ezawa, Dynamical nonlinear higher-order non- Hermitian skin effects and topological trap-skin phase, Physical Review B 105, 125421 (2022)
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Skin modes in a nonlinear Hatano-Nelson model
Families of nonlinear skin modes emerge from linear ones in the Hatano-Nelson model with Kerr nonlinearity, exhibiting enhanced localization for focusing and reduced localization for defocusing nonlinearity.