Dynamics of the Random Ising Model with Long-Range Interaction  

作　　者：CHEN Yuan LI Zhi-Bing FANG Hai HE Shun-Shan SITU Shu-Ping 

机构地区：[1]Department of Physics, Guangzhou University, Guangzhou 510405, China Department of Physics, Zhongshan University, Guangzhou 510275, China , Associate Member of ICTP, Trieste, Italy Department of Physics, Zhongshan University, Guangzhou 510275, China Department of Physics, Zhongshan University, Guangzhou 510275, China Department of Physics, Zhongshan University, Guangzhou 510275, China

出　　处：《Communications in Theoretical Physics》2001年第10期469-472,共4页理论物理通讯（英文版）

基　　金：国家自然科学基金，中山大学校科研和教改项目

摘　　要：Critical dynamics of the random Ising model with long-range interaction decaying as r-(d+σ) where d is the dimensionality) is studied by the theoretic renormalization-group approach. The system is released to an evolution within a model A dynamics. Asymptotic scaling laws are studied in a frame of the expansion in = 2σ - d. In dimensions d ＜ 2σ. the dynamic exponent z is calculated to the second order in at the random fixed point.

关 键 词：ISING model  critical dynamics  LONG-RANGE interaction  quenched IMPURITIES 

分 类 号：O4[理学—物理]