Practical all-to-all propagators for lattice QCD

被引：158

作者：

Foley, J ^{[1
]}

Juge, KJ ^{[1
]}

Cais, AO ^{[1
]}

Peardon, M ^{[1
]}

Ryan, SM ^{[1
]}

Skullerud, JI ^{[1
]}

机构：

[1] Univ Dublin Trinity Coll, Sch Math, Dublin 2, Ireland

来源：

COMPUTER PHYSICS COMMUNICATIONS | 2005年 / 172卷 / 03期

关键词：

lattice QCD; spectral decomposition; stochastic estimators; variance reduction;

D O I：

10.1016/j.cpc.2005.06.008

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

A new method for computing all elements of the lattice quark propagator is proposed. The method combines the spectral decomposition of the propagator, computing the lowest eigenmodes exactly, with noisy estimators which are 'diluted', i.e. taken to have support only on a subset of time, space, spin or color. We find that the errors are dramatically reduced compared to traditional noisy estimator techniques. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：145 / 162

页数：18

共 21 条

[1]

BALI GS, HEPLAT0505012

[2] THE QCD FINITE TEMPERATURE TRANSITION AND HYBRID MONTE-CARLO [J].