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.
DE DIVITIIS, G.m., Petronzio, R., Tantalo, N. (2004). On the discretization of physical momenta in lattice QCD. PHYSICS LETTERS. SECTION B, B595, 408-413 [10.1016/j.physletb.2004.06.035].
On the discretization of physical momenta in lattice QCD
DE DIVITIIS, GIULIA MARIA;PETRONZIO, ROBERTO;TANTALO, NAZZARIO
2004-01-01
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.File in questo prodotto:
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