Summary
We discuss in this letter the problem of finding, in the context of nonrelativistic quantum mechanics, the motion of a particle constrained to move along an arbitrary space curve by the action of external forces. The type of constraining potential, necessary to obtain a meaningful result, is considered in some detail, since there still seems to be some misconceptions about this subject in the current literature.
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da Costa, R.C.T. Constrained particles in quantum mechanics. Lett. Nuovo Cimento 36, 393–396 (1983). https://doi.org/10.1007/BF02906835
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DOI: https://doi.org/10.1007/BF02906835