Wave functionals of free real and complex scalar fields on a 1+1   dimensional lattice
  We obtain wave functionals of free real and complex scalar fields on a 1+1 dimensional lattice by explicitly calculating the path integral for transition from one field configuration to another. The obtained expressions are useful for cross-checking quality of approximations schemes used to study self-interacting fields on the lattice. 
Alexander Kartavtsev
hep-ph hep-th