  A lattice fermion model is formulated in Fock space using the Jordan-Wigner
representation for the fermion creation and annihilation operators. The
resulting path integral is a sum over configurations of lattice site occupation
numbers $n(x,t) = 0,1$ which may be viewed as bosonic Ising-like variables.
However, as a remnant of Fermi statistics a nonlocal sign factor arises for
each configuration. When this factor is included in measured observables the
bosonic occupation numbers interact locally, and one can use efficient cluster
algorithms to update the bosonized variables.
