Fig. 1

The bell-shape plots of \({{\left| {{\rho }_{1}}(x,t) \right| }^{2}}\), where \(\alpha = 1,w= -1,\eta _{2}=1,{\eta }_{1}=0.5,\kappa = 0.3,\) and \(u= -0.36\).
The bell-shape plots of \({{\left| {{\rho }_{1}}(x,t) \right| }^{2}}\), where \(\alpha = 1,w= -1,\eta _{2}=1,{\eta }_{1}=0.5,\kappa = 0.3,\) and \(u= -0.36\).