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Non-hermitian Exact Local Bosonic Algorithm for Dynamical Quarks

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arxiv hep-lat/9602016 v2 pith:XPX2QF2B submitted 1996-02-14 hep-lat

Non-hermitian Exact Local Bosonic Algorithm for Dynamical Quarks

classification hep-lat
keywords algorithmlatticebosonicdynamicalexactlocalnon-hermitianpresented
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We present an exact version of the local bosonic algorithm for the simulation of dynamical quarks in lattice QCD. This version is based on a non-hermitian polynomial approximation of the inverse of the quark matrix. A Metropolis test corrects the systematic errors. Two variants of this test are presented. For both of them, a formal proof is given that this Monte Carlo algorithm converges to the right distribution. Simulation data are presented for different lattice parameters. The dynamics of the algorithm and its scaling in lattice volume and quark mass are investigated.

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