摘要
本文采用位置空间重整化群和蒙特-卡罗模拟方法,研究了二维次近邻正方格点渗流问题,计算出其临界值P_c和临界指数α,β,γ,δ,υ等。结果表明:二维考虑次近邻的渗流问题与仅考虑最近邻的渗流问题属于不同的普适类。
In this paper, we use the renormalisation group approach and Monte-Carlo simulation to treat the problem of percolation on a two-dimensional square lattice with next-nearest-neighbour interactions. The critical probability pc and the critical exponents α,β,γ and so forth are obtained. It is shown that the two-dimensional percolation problem with next-nearest-neighbour interactions belongs to different universality class from that only with nearest-neighbour interactions.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
1991年第2期169-174,共6页
Acta Physica Sinica
基金
国家自然科学基金
