LOOP ALGORITHMS FOR MONTE-CARLO SIMULATIONS OF QUANTUM SPIN SYSTEMS

被引：64

作者：

KAWASHIMA, N ^{[1
]}

GUBERNATIS, JE ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB, DIV THEORET, LOS ALAMOS, NM 87545 USA

来源：

PHYSICAL REVIEW LETTERS | 1994年 / 73卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.73.1295

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new algorithm for world line Monte Carlo simulations of quantum spin systems. The algorithm consists of a stochastic pairing and a stochastic flipping procedure, and the formula for the pairing probability is explicitly given for Heisenberg models. As an illustration of the algorithm, we calculated autocorrelation times for simulations of the S = 1 antiferromagnetic Heisenberg chain. The rapid increase in autocorrelation times which is seen in the conventional world line method as the imaginary-time spacing decreases is eliminated by the present algorithm.

引用

页码：1295 / 1298

页数：4

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