Modulational instability on triangular dynamical lattices with long-range interactions and dispersion
Чланак у часопису
МетаподациПриказ свих података о документу
The influence of long-range interactions on the stability of stationary solutions of triangular lattices described by the continuum-discrete nonlinear Schrodinger equation is analyzed. By virtue of the linear stability analysis and a variational approach we demonstrate that both soliton array and continuous-wave solutions are modulationally unstable. Analytical expressions for instability thresholds and growth rate spectra are presented and compared with the corresponding results in the approximation of a nearest neighbor interaction.
Извор:European Physical Journal B. Condensed Matter and Complex Systems, 2004, 41, 4, 495-501
ISSN: 1434-6028 (print)