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This is a preprint from 1990, in which it is explained how non-Abelian gaugemagnets originate as effective dynamics in models of hopping particles. Inparticular, an explicit model is discussed in which both link and plaquetteterms appear. The motivation (as explained in a brief apology) to reintroducethe idea is some recent theoretical progress on the topic of optical lattices.

A reintroduction of dynamical SU(2) gauge fields in Hubbard models