Wave functionals of free real and complex scalar fields on a 1+1 dimensional lattice
arXiv:1404.5629
Abstract
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.
The work contains no substantial new results