Erratum: Revisiting the displacement operator for quantum systems with position-dependent mass [Phys. Rev. A 85, 034102 (2012)]

Figure 2

The probability density of a two-dimensional infinite square well for (a) $n_1=1,n_2=1$, (b) $n_1=1,n_2=2$, (c) $n_1=2,n_2=2$, and (d) $n_1=3,n_2=3$. Unlike the figure reported in Ref. [1], the particle is willing to stay closer to the origin. In this figure, the left side and the right side are the top and the side views, respectively, and the wave functions are normalized.

Figure 3

$\frac{〈x〉}{\gamma }$ versus $\tilde{\gamma }=\gamma L$ of a one-dimensional particle in the infinite square well for $n=1–3$ and 20. Although there are slight changes between the different cases, the general behaviors are almost the same, which is in contrast with Ref. [1].