摘要
用重正化群中的PSRG方法,引入能级的权重因子,研究五格点集团构成的正方格子伊辛模型.将该方法求出的重正化群方法的解J/kBT和临界指数与修正前及选取较大Kadanoff集团所得结果比较,发现修正后的结果更接近严格解.
Two dimensional tetragonal Ising model is studied with PSRG method in the Renormalization Group(RG) by introducing a energy dependent weight factor, when the Kadanoff clusters are constructed with five-point cluster. The new solution to the RG method and its corresponding critical indices are deduced, which approach exact solution more than those of before revision, as well as a larger Kadanoff cluster.
出处
《湖北大学学报（自然科学版）》
CAS
北大核心
2005年第1期29-32,共4页
Journal of Hubei University：Natural Science
基金
湖北省教育厅优秀中青年项目(2002B0006)资助
