Hopping expansion as a tool for handling dual variables in lattice models
arXiv:hep-lat/9809176 · doi:10.1016/S0920-5632(99)85199-8
Abstract
The hopping expansion of 8-vertex models in their Grassmann representation is studied. We use the functional similarity of the Ising model in this expansion with the hopping expansion of 2-D Wilson fermions to show that the lattice fermions are equivalent to the Self-avoiding Loop Model at bending rigidity 1/sqrt{2}.
LATTICE98(spin), Reference corrected