Variations on the Dirac string
arXiv:1807.07401 · doi:10.1103/PhysRevD.98.105013
Abstract
Dirac's original solution of the nontrivial Bianchi identity for magnetic monopoles [Dirac 1948], which redefines the fieldstrength along the Dirac string, diagonalizes the gauge and monopole degrees of freedom. We provide a variant of the Dirac string, which we motivate through a formal expansion of the Bianchi identity. We show how to use our variant prescription to study monopole electrodynamics without reference to a dual potential and provide some applications.
arXiv comment7 pages; v2. minor corrections, added acknowledgments
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