Accelerating the hybrid Monte Carlo algorithm

被引：21

作者：

Khan, AA ^{[1
]}

Bakeyev, T

Göckeler, M

Horsley, R

Pleiter, D

Rakow, P

Schäfer, A

Schierholz, G

Stüben, H

机构：

[1] Humboldt Univ, Inst Phys, D-12489 Berlin, Germany

[2] Joint Inst Nucl Res, Dubna 141980, Russia

[3] Univ Leipzig, Inst Theoret Phys, D-04109 Leipzig, Germany

[4] Univ Regensburg, Inst Theoret Phys, D-93040 Regensburg, Germany

[5] Univ Edinburgh, Sch Phys, Edinburgh EH9 3JZ, Midlothian, Scotland

[6] John Neumann Inst Comp, D-15738 Zeuthen, Germany

[7] Univ Liverpool, Dept Math Sci, Div Theoret Phys, Liverpool L69 3BX, Merseyside, England

[8] DESY, D-22603 Hamburg, Germany

[9] Konrad Zuse Zentrum Informat Tech Berlin, D-14195 Berlin, Germany

来源：

PHYSICS LETTERS B | 2003年 / 564卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(03)00703-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

An algorithm for separating the high- and low-frequency molecular dynamics modes in hybrid Monte Carlo (HMC) simulations of gauge theories with dynamical fermions is presented. The separation is based on splitting the pseudo-fermion action into two parts, as was initially proposed by Hasenbusch. We propose to introduce different evolution time-scales for each part. We test our proposal in realistic simulations of two-flavor O(a) improved Wilson fermions. A speed-up of more than a factor of three compared to the standard HMC algorithm is observed in a typical run. (C) 2003 Published by Elsevier B.V.

引用

页码：235 / 240

页数：6

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