Figure 6

The dependence of the Maslov index on the parameter \(u = W_{1}^{4/3} /\left( { - W_{0} c\hbar } \right)^{2/3}\). The solid line shows the index for the energy spectrum branch with \(\psi_{1} (0) = 0\) and the dotted line stands for the branch with \(\psi_{2} (0) = 0\). The points in the vertical axis indicate \(- 1/6\) and \(- 5/6\).