A quantum Monte Carlo method for quantum Ising model

被引：0
作者：
Zhang, Q [1 ]
Gu, YW [1 ]
Wei, GZ [1 ]
机构：
[1] Northeastern Univ, Shenyang 110004, Peoples R China
来源：
PROCEEDINGS OF THE THIRD INTERNATIONAL SYMPOSIUM ON MAGNETIC INDUSTRY (ISMI'04) & FIRST INTERNATIONAL SYMPOSIUM ON PHYSICS AND IT INDUSTRY (ISITI'04) | 2005年
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中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Stochastic series expansion quantum Monte Carlo method is presented for Ising model with both transverse field and transverse crystal field. By transforming the operator vertical bar sigma > into a certain form. the Ising model with transverse crystal field can be simulated. But for the Ising moel with both transverse field and transverse crystal field, the weight factors obtained by Stochastic series expansion method cannot be all positive. It is pointed out that even if there exist negative weight factors, the simulation may be carried out easily.
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页码：40 / 42
页数：3
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