A relativistic invariant scheme for the quantum Klein-Gordon and Dirac fields on the lattice
arXiv:hep-lat/0312041
Abstract
We explore the connection between the symmetry transformations and conservation laws for the Klein-Gordon and Dirac fields on the lattice. The generators of the space time translations and Lorentz boost (defined on the lattice) are constants of motion and satisfy the standard commutation relations.
Proceedings: M. Olmo, M. Santander, J. Mateos, eds. XIX Int. Colloqium on Group Theoretical Methods in Physics (RSEF, Madrid 1992) pp. 395-399. TeX, 4 pages (late submission)