In Yang-Mills theory, one solution for it is named for t' Hooft and Polyakov.
In Yang-Mills theory, one solution for it is named for t' Hooft and Polyakov. In some Grand Unified Theories, it is equivalent to the most basic state of a dyon. In another formulation, it is a topological defect in a compact U(1) gauge theory, and its existence is the subject of Dirac's quantization condition. The vector potential cannot be defined globally because the divergence of its curl is nonzero at the locus of this object, whose existence would imply modifications to Faraday's law of induction and Gauss's law of magnetism. For 10 points, name this theoretical fundamental unit of magnetic charge.
In Yang-Mills theory, one solution for it is named for t' Hooft and Polyakov.
Magnetic {monopole}