Noncovariance of the Schwinger Monopole
It is shown that a canonical formulation of the magnetic monopole cannot be covariant if one allows only couplings which are manifestly invariant under three dimensional rotation. Although Schwinger′s monopole theory allows a more general class of interaction terms, Lorentz invariance is found to be violated there as well. One is forced to conclude that there does not exist a consistent field theory of the monopole at the present time.
KeywordsMagnetic Charge Lorentz Invariance Magnetic Monopole Fermion Field Magnetic Current
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