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-Nong^{3, †}

(color online) Stationary solitons when ω_s = 1, β = 1, h = 0.25. (a) Fourier space. (b) Physical space. Black: α = −0.5; magenta: α = 0; green: α = 2. Every circle, box and fork marked on the respective line represents the values of | F ( nh ) | .