Comment on: "some quantum aspects of a particle with electric quadrupole moment interacting with an electric field subject to confining potentials"

Abstract

We analyze the results obtained from a model consisting of the interaction between the electric quadrupole moment of a moving particle and an electric field. We argue that the system does not support bound states because the motion along the z axis is unbounded. It is shown that the author obtains a wrong bound-state spectrum for the motion in the x - y plane and that the existence of allowed cyclotron frequencies is an artifact of the approach.