  In this series of three papers, we generalize the derivation of dual photons
and monopoles by Polyakov, and Banks, Myerson and Kogut, to obtain
approximative models of SU(2) lattice gauge theory. Our approach is based on
stationary phase approximations.
  In this second article, we start from the spin foam representation of
3-dimensional SU(2) lattice gauge theory. By extending an earlier work of
Diakonov and Petrov, we approximate the expectation value of a Wilson loop by a
path integral over a dual gluon field and monopole-like degrees of freedom. The
action contains the tree-level Coulomb interaction and a nonlinear coupling
between dual gluons, monopoles and current.
