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Speeding up Lattice QCD simulations with clover-improved Wilson Fermions

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arxiv hep-lat/0211042 v1 pith:JTRNTKJR submitted 2002-11-29 hep-lat

M. Hasenbusch , K. Jansen This is my paper · ORCID
classification hep-lat
keywords factorsfermionsproposalactionalgorithmapplybasicclover-improved
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We apply a recent proposal to speed up the Hybrid-Monte-Carlo simulation of systems with dynamical fermions to two flavour QCD with clover-improvement. The basic idea of our proposal is to split the fermion matrix into two factors with a reduced condition number each. In the effective action, for both factors a pseudo-fermion field is introduced. For our smallest quark masses we see a speed-up of more than a factor of two compared with the standard algorithm.

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  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.

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