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Speeding up the Hybrid-Monte-Carlo algorithm for dynamical fermions

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arxiv hep-lat/0107019 v1 pith:3B64K5WA submitted 2001-07-25 hep-lat

Martin Hasenbusch This is my paper · ORCID
classification hep-lat
keywords algorithmhybrid-monte-carloacceptanceactionallowsconstantdegeneratedynamical
verification ladder T0 review T1 audit T2 compute T3 formal
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We propose a modification of the Hybrid-Monte-Carlo algorithm that allows for a larger step-size of the integration scheme at constant acceptance rate. The key ingredient is that the pseudo-fermion action is split into two parts. We test our proposal at the example of the two-dimensional lattice Schwinger model with two degenerate flavours of Wilson-fermions.

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Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Pion condensation at non-zero isospin chemical potential with Wilson fermions

    hep-lat 2025-02 conditional novelty 5.0 of 10

    Using Wilson fermions on the lattice, the onset of pion condensation is observed at an isospin chemical potential slightly below m_pi/2, consistent with earlier staggered-fermion results.

  2. Comparison of a pseudoscalar meson form factor in QCD with 3, 4, and 5 colors

    hep-lat 2024-12 conditional novelty 5.0 of 10

    Measurements of the pseudoscalar meson vector form factor in SU(3), SU(4), and SU(5) lattice QCD show that its shape is nearly independent of Nc and roughly follows vector meson dominance.

  3. The determination of potential scales in 2+1 flavor QCD

    hep-lat 2024-12 conditional novelty 5.0 of 10

    A new lattice QCD determination of the hadronic scales r0 = 0.4729(75) fm and r1 = 0.3127(40) fm in 2+1 flavor QCD, together with r0 Λ_MSbar^(3) = 0.820(28).

  4. Hybrid calculation of hadronic vacuum polarization in muon g-2 to 0.48\%

    hep-lat 2024-07 unverdicted novelty 4.0 of 10

    Lattice QCD on finer grids yields a_μ^LO-HVP = 715.1(3.4)×10^{-10}, producing a standard-model prediction for a_μ that differs from experiment by only 0.5 sigma.

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