One-flavor algorithm for Wilson and domain-wall fermions

Details One-flavor algorithm for Wilson and domain-wall fermions One-flavor algorithm for Wilson and domain-wall fermions

2009-11-30

arxiv.org/abs/0911.5532v2

PoS LAT2009:033,2009

Physics

High Energy Physics

High Energy Physics - Lattice

7 pages. Talk presented at the XXVII International Symposium on Lattice Field Theory, July 26-31 2009, Peking University, Beij

Scientific paper

We construct positive-definite pseudofermion actions for one fermion flavor in lattice field theory, for Wilson and domain-wall fermions respectively. The positive definiteness of these actions ensures that they can be simulated with the Hybrid Monte Carlo (HMC) method. For lattice QCD with optimal domain-wall quarks, we compare the efficiency of HMC simulations of 2-flavor and (1+1)-flavor, and find that the efficiency ratio is about 3:2.

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