Comment on: "Some quantum aspects of a particle with electric quadrupole moment interacting with an electric field subject to confining potentials". Int. J. Mod. Phys. A 29 (2014) 1450117

We analyze the results obtained from a model consisting of the interaction etween 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.

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