A bright 2D spatial soliton in inhomogeneous Kerr media with PT-symmetric potentials

The nonlinear Schrodinger equation with inhomogeneous diffraction and nonlinearity in the presence of PT-symmetric potentials is investigated, and an analytical bright 2D spatial soliton is obtained. The positive and negative signs in the parameters of the PT-symmetric potentials lead to four permutation and combination cases. The dynamical evolutions of the spatial soliton in the periodic modulated system and the diffraction decreasing waveguide are discussed. Dynamical characteristics of the form factors for the spatial soliton including the amplitude, width and phase are studied. Moreover, two kinds of nonlinear PT phase change are presented. These results may provide alternative methods in potential applications of synthetic PT-symmetric systems.