Solitary wave for a nonintegrable discrete nonlinear Schrödinger equation in nonlinear optical waveguide arrays
Ma Li-Yuan1, Ji Jia-Liang2, Xu Zong-Wei3, Zhu Zuo-Nong3, †
       

(color online) (a) Stationary solitary wave in physical space with parameters ωs = 1, α = 0.5, β = −1, h = 0.25. (b) Spectrum of the linearization operator Ln for the stationary solitary wave (a) contains four pairs of internal modes.