HAMILTONIAN EVOLUTION FOR THE HYBRID MONTE-CARLO ALGORITHM

被引：203

作者：

SEXTON, JC ^{[1
]}

WEINGARTEN, DH ^{[1
]}

机构：

[1] UNIV DUBLIN TRINITY COLL,DEPT MATH,DUBLIN 2,IRELAND

来源：

NUCLEAR PHYSICS B | 1992年 / 380卷 / 03期

关键词：

D O I：

10.1016/0550-3213(92)90263-B

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We discuss a class of reversible, discrete approximations to Hamilton's equations for use in the hybrid Monte Carlo algorithm and derive an asymptotic formula for the step-size-dependent errors arising from this family of approximations. For lattice QCD with Wilson fermions, we construct several different updates in which the effect of fermion vacuum polarization is given a longer time step than the gauge field's self-interaction. On a 4(4) lattice, one of these algorithms with an optimal choice of step size is 30% to 40% faster than the standard leapfrog update with an optimal step size.

引用

页码：665 / 677

页数：13

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