Staggered versus overlap fermions: A study in the Schwinger model withNf=0,1,2

2003/11/30 by Stephan Dürr, Christian Hoelbling · 2 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat

paper · pdf · doi:10.1103/physrevd.69.034503

published as Phys.Rev.D69:034503,2004 · 15 pages, 7 figures, v2: 1 ref corrected, minor changes

arxiv created 2003/12/08 · openalex publication_date 2004/02/24 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We study the scalar condensate and the topological susceptibility for a continuous range of quark masses in the Schwinger model with N_f=0,1,2 dynamical flavors, using both the overlap and the staggered discretization. At finite lattice spacing the differences between the two formulations become rather dramatic near the chiral limit, but they get severely reduced, at the coupling considered, after a few smearing steps.

Citations

• A method for simulating chiral fermions on the lattice
• Existence of Long-Range Order in One and Two Dimensions
• Chiral fermions from lattice boundaries

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