Lattice chiral symmetry with hopping interactions

Details Lattice chiral symmetry with hopping interactions Lattice chiral symmetry with hopping interactions

2003-04-22

arxiv.org/abs/hep-lat/0304015v3

Phys.Rev. D68 (2003) 034502

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, 4 figures, revtex, published version

Scientific paper

10.1103/PhysRevD.68.034502

We formulate Dirac fermions on a (1+1)-dimensional lattice based on a Hamiltonian formalism. The species doubling problem of the lattice fermion is resolved by introducing hopping interactions that mix left- and right-handed fermions around the momentum boundary. Approximate chiral symmetry is realized on the lattice. The deviation of the fermion propagator from the continuum one is small.

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