Stochastic Estimations of Fermion Matrix Determinants with Unbiased Subtractions

Chin. Phys. Lett.

1998, Vol. 15

Issue (6): 401-403 DOI:

Original Articles

Stochastic Estimations of Fermion Matrix Determinants with Unbiased Subtractions

YING He-ping

Zhejiang Institute of Modern Physics, Zhejiang University, Hangzhou 310027

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YING He-ping 1998 Chin. Phys. Lett. 15 401-403

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Abstract The Padé-Z₂ stochastic estimator is used to calculate the fermion matrix determinants and the determinant ratios with an unbiased variational scheme. The results on an 8³ x 12 lattice with Wilson action show that the determinant ratio with a relatively small number of Z₂ noises (e.g., 400) can be estimated by using the unbiased subtractions.

Keywords: 11.15.Ha 11.25.Sq 12.38.Gc

Published: 01 June 1998

PACS:	11.15.Ha	(Lattice gauge theory)
	11.25.Sq	(Nonperturbative techniques; string field theory)
	12.38.Gc	(Lattice QCD calculations)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1998/V15/I6/0401

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