GLOBAL DEMONS IN-FIELD THEORY - CRITICAL SLOWING-DOWN IN THE XY MODEL

被引：11

作者：

KUSNEZOV, D ^{[1
]}

SLOAN, J ^{[1
]}

机构：

[1] OHIO STATE UNIV, DEPT PHYS, COLUMBUS, OH 43210 USA

来源：

NUCLEAR PHYSICS B | 1993年 / 409卷 / 03期

关键词：

D O I：

10.1016/0550-3213(93)90544-Y

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 investigate the use of global demons, a ''canonical dynamics'', as an approach to simulating lattice regularized field theories. This deterministically chaotic dynamics is non-local and non-hamiltonian, and preserves the canonical measure rather than delta(H - E). We apply this inexact dynamics to the 2D XY model, comparing to various implementations of hybrid Monte Carlo, focusing on critical exponents and critical slowing down. In addition, we discuss a scheme for making energy non-conserving dynamical algorithms exact without the use of a Metropolis hit.

引用

页码：635 / 662

页数：28