Critical behavior of a dynamical percolation model  

作　　者：喻梅凌 许明梅 刘正猷 刘连寿 

机构地区：[1]Department of Physics,Wuhan University [2]Institute of Particle Physics,Huazhong Normal University [3]Key Laboratory of Quark & Lepton Physics(Huazhong Normal University),Ministry of Education

出　　处：《Chinese Physics C》2009年第7期552-556,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10775056, 10835005)

摘　　要：The critical behavior of the dynamical percolation model,which realizes the molecular-aggregation conception and describes the crossover between the hadronic phase and the partonic phase,is studied in detail. The critical percolation distance for this model is obtained by using the probability P∞ of the appearance of an infinite cluster. Utilizing the finite-size scaling method the critical exponents γ/ν and τ are extracted from the distribution of the average cluster size and cluster number density. The influences of two model related factors,i.e. the maximum bond number and the definition of the infinite cluster,on the critical behavior are found to be small.The critical behavior of the dynamical percolation model,which realizes the molecular-aggregation conception and describes the crossover between the hadronic phase and the partonic phase,is studied in detail. The critical percolation distance for this model is obtained by using the probability P∞ of the appearance of an infinite cluster. Utilizing the finite-size scaling method the critical exponents γ/ν and τ are extracted from the distribution of the average cluster size and cluster number density. The influences of two model related factors,i.e. the maximum bond number and the definition of the infinite cluster,on the critical behavior are found to be small.

关 键 词：PERCOLATION critical exponent molecule-like aggregation DELOCALIZATION 

分 类 号：O572.243[理学—粒子物理与原子核物理]