Canonical transformations in gauge theories with non-trivial backgrounds
  We show how to implement the background field method by means of canonical transformations and comment on the applications of the method to non-perturbative techniques in non-Abelian gauge theories. We discuss the case of the lattice in some details. 
Daniele Binosi (ECT, Trento and Fond. Bruno Kessler, Trento), Andrea   Quadri (Milan U. and INFN, Milan)
hep-th hep-lat