On the discretization of physical momenta in lattice QCD
High Energy Physics - Lattice
2009-11-10 v2
Abstract
The adoption of two distinct boundary conditions for two fermions species on a finite lattice allows to deal with arbitrary relative momentum between the two particle species, in spite of the momentum quantization rule due to a limited physical box size. We test the physical significance of this topological momentum by checking in the continuum limit the validity of the expected energy-momentum dispersion relations.
Keywords
Cite
@article{arxiv.hep-lat/0405002,
title = {On the discretization of physical momenta in lattice QCD},
author = {G. M. de Divitiis and R. Petronzio and N. Tantalo},
journal= {arXiv preprint arXiv:hep-lat/0405002},
year = {2009}
}
Comments
9 pages, 3 figures; references added; no changes in text or results; version accepted for pubblication in Phys. Lett. B