摘要

The (3+1)-dimensional variable-coefficient nonlinear Schrodinger equation with linear and parabolic traps is studied, and an exact Kuznetsov-Ma soliton solution in certain parameter conditions is derived. These precise expressions indicate that diffraction and chirp factors influence phase, center and widths, while the gain/loss parameter only affects peaks. By adjusting the relation between the maximum accumulated time T-m, and the accumulated time T-0 based on maximum amplitude of Kuznetsov-Ma soliton, postpone, maintenance and restraint of superposed Kuznetsov-Ma solitons are investigated.

  • 出版日期2014-4-1
  • 单位丽水学院