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- W4310922002 abstract "We derive an extended cubic-quintic nonlinear Schr{o}dinger equation with Hamiltonian structure in a nonlinear Klein-Gordon model with cubic-quintic nonlinearity. We use the nonlinear dispersion relation to properly take into account the input of high-order nonlinear effects in the Hamiltonian perturbation approach to nonlinear modulation. We demonstrate that changing the balance between the cubic and quintic nonlinearities has a significant effect on the stability of unmodulated wave packets to long-wave modulations." @default.
- W4310922002 created "2022-12-21" @default.
- W4310922002 creator A5010344142 @default.
- W4310922002 creator A5089905330 @default.
- W4310922002 date "2022-12-06" @default.
- W4310922002 modified "2023-10-15" @default.
- W4310922002 title "Hamiltonian form of extended cubic-quintic nonlinear Schr{o}dinger equation in a nonlinear Klein-Gordon model" @default.
- W4310922002 doi "https://doi.org/10.48550/arxiv.2212.03316" @default.
- W4310922002 hasPublicationYear "2022" @default.
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