%0 Journal Article %T 金刚石晶格上S4模型的相变<br>Phase transition of the S4 model on diamond lattice %A 尹训昌 %A 刘万芳 %A 祝祖送 %A 马业万 %A 闻军 %A 章礼华 %J 四川大学学报 (自然科学版) %D 2018 %X 应用实空间重整化群的方法,研究了金刚石晶格上S4模型的相变,求得了系统的临界点. 分析可知,本系统只存在Gauss不动点而无Wilson Fisher不动点,与金刚石晶格上的Gauss模型相比较,系统具有相同的临界点,表明它们属于同一个普适类.<br>According to the real space renormalization group method, the phase transition of S4 model on a diamond lattice is studied, and its critical points are obtained. The results show that there only exist a Gaussian fixed point and the Wilson-Fisher fixed point is not found. Compared to the Gauss model on a diamond lattice, they have the same critical points. The results indicate that the two systems belong to the same university class %K 金刚石晶格 S4模型 重整化群< %K br> %K Diamond lattice S4 mode Renormalization-group %U http://science.ijournals.cn/jsunature_cn/ch/reader/view_abstract.aspx?file_no=C170313&flag=1