The PZ method for estimating determinant ratios, with applications

Details The PZ method for estimating determinant ratios, with applications The PZ method for estimating determinant ratios, with applications

1996-10-15

arxiv.org/abs/hep-lat/9610018v1

Nucl.Phys.Proc.Suppl. 53 (1997) 977-979

Physics

High Energy Physics

High Energy Physics - Lattice

4 pages, Latex, 5 ps figures. Talk presented at Lattice '96

Scientific paper

10.1016/S0920-5632(96)00832-8

We introduce a new method for estimating determinants or determinant ratios of large matrices, which combines the techniques of Pad\`{e} approximation with rational functions and $Z_{2}$ noise estimation of traces of large matrices. The method requires simultaneously solving several matrix equations, which can be conveniently accomplished using the MR method. We include some preliinary results, and indicate potential applications to non-Hermitian matrices, and Hybrid Monte Carlo without pseudofermions.

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