QUANTUM SIMULATIONS OF THE SUPERFLUID-INSULATOR TRANSITION FOR 2-DIMENSIONAL, DISORDERED, HARD-CORE BOSONS

被引：69

作者：

ZHANG, SW ^{[1
]}

KAWASHIMA, N ^{[1
]}

CARLSON, J ^{[1
]}

GUBERNATIS, JE ^{[1
]}

机构：

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

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.74.1500

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We introduce two quantum Monte Carlo algorithms and employ them to study the superfluid-insulator transition in a two-dimensional system of hard-core bosons. One of the algorithms is appropriate for zero temperature and is based upon the Green's function Monte Carlo method; the other is an extension of the finite-temperature world-line cluster method. In each case we find that the dynamical exponent is consistent with the theoretical prediction of z=2 by Fisher and co-workers. © 1995 The American Physical Society.

引用

页码：1500 / 1503

页数：4

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