Worm algorithm for continuous-space path integral Monte Carlo simulations

被引：311

作者：

Boninsegni, M ^{[1
]}

Prokof'ev, N

Svistunov, B

机构：

[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada

[2] Univ Massachusetts, Dept Phys, Amherst, MA 01003 USA

[3] Kurchatov Inst, Russian Res Ctr, Moscow 123182, Russia

[4] Cornell Univ, Dept Phys, Ithaca, NY 14850 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.96.070601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new approach to path integral Monte Carlo (PIMC) simulations based on the worm algorithm, originally developed for lattice models and extended here to continuous-space many-body systems. The scheme allows for efficient computation of thermodynamic properties, including winding numbers and off-diagonal correlations, for systems of much greater size than that accessible to conventional PIMC simulations. As an illustrative application of the method, we simulate the superfluid transition of He-4 in two dimensions.

引用

页数：4

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