Strings and gauge invariance

@article{Milton1978StringsAG,
  title={Strings and gauge invariance},
  author={Kimball A. Milton and Lester L. DeRaad},
  journal={Journal of Mathematical Physics},
  year={1978},
  volume={19},
  pages={375-382}
}
Within the context of the nonrelativistic theory of dyons, we study a number of interrelated issues concerning the quantum formulation of magnetic charge. We begin by solving the two‐body Schrodinger equation for an arbitrarily oriented singularity line (string) in terms of the known solutions with the string on the z axis. Charge quantization conditions emerge by requiring that the wavefunctions be single valued. The general solutions express the necessary gauge covariance of the wavefunctions… 

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