On the discretization of physical momenta in lattice QCD

Details On the discretization of physical momenta in lattice QCD On the discretization of physical momenta in lattice QCD

2004-05-04

arxiv.org/abs/hep-lat/0405002v2

Phys.Lett. B595 (2004) 408-413

Physics

High Energy Physics

High Energy Physics - Lattice

9 pages, 3 figures; references added; no changes in text or results; version accepted for pubblication in Phys. Lett. B

Scientific paper

10.1016/j.physletb.2004.06.035

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.

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