Nonlinear tunnelling of spatial solitons in PT-symmetric potential

作者：Xu Yun Jie; Dai Chao Qing^*

来源：Optics Communications, 2014, 318: 112-119.

DOI：10.1016/j.optcom.2013.12.087

• Nonlinear tunnelling
• Spatial soliton
• Nonlinear Schrodinger equation
• Parity-time symmetry

Based on spatial soliton solution of a (2+1)-dimensional inhomogeneous nonlinear Schrodinger equation in the presence of the parity-time symmetric potential, we discuss nonlinear tunnelling effect when spatial soliton passes through the diffraction well and diffraction barrier. When the spatial soliton passes through the diffraction well, the nonlinear tunnelling effect happens, that is, its amplitude diminishes and after the well, its amplitude then adds. When the spatial soliton passes through the diffraction barrier, the nonlinear tunnelling effect does not happen.

• 出版日期2014-5-1
• 单位浙江农林大学