二维依辛模型相变附近临界指数β的计算机模拟计算

The Computer Calculation of Critical Index β on the Vicinity of Phase Transition of 2-Dimension Ising Model

用Monte-Carlo方法,在平面四角点阵上以二维依辛模型为框架,在PC机上模拟计算了相变附近依辛自旋系统的临界指数β。发现温度点个数越多,其结果越接近理论值,该方法同样可用于求指数α、γ,也可得到与理论值非常符合的计算结果。

Monte-Carlo method is used to calculate the value of critical index β on the vicinity of phase transition of Ising spin model by programmed on computer. The more temperature points that are choosed, the closer the result is to the theoretical value. This method can also be used to calculate the values of oth- er critical index such as α、γ, and can got satisfactory simulating results.