Monopoles and instantons from Berry’s phase

Abstract
The topological phase picked up by an arbitrary spin undergoing a cyclic series of quantum jumps is deduced by geometric considerations. Generalizing the Hamiltonian of a spin in a magnetic field, higher‐dimensional Dirac monopoles are derived from the non‐Abelian adiabatic phase. These monopoles appear in the momentum space description of zero mass particles in higher dimensions.