摘要
以二维三角晶格为例选取包含9个晶格的晶胞为Kadanoff集团,通过重正化变换求出其临界点和临界指数并与三角晶格[1]、六角晶格[2]的结果作比较,比较的结果表明:选取更大的集团可以提高其计算精度。
Select enneahedral crystal lattice as Kadanoff group.The critical point and exponents are gained by renormalization group.Bigger group can increase the precision as compared with triangular and hexagonal crystal lattice.
出处
《安徽大学学报(自然科学版)》
CAS
北大核心
2005年第4期50-53,共4页
Journal of Anhui University(Natural Science Edition)
关键词
重正化群变换
Kadanoff集团
临界点
临界指数
transform of the renormalization group
Kadanoff group
critical point
critical exponents