用Monte Carlo方法研究聚亚甲基长链的统计性质

The Monte Carlo investigation of statistical properties of the long polymethylene chains

用Monte Carlo方法研究聚亚甲基长链的统计性质,如:平均分布几率P-(r)、每一个键的平均能量、均方末端距〈R2〉等.然后,将这些结果和完全统计方法获得的结果进行对比,两者是相似的,而Monte Carlo方法有计算量小的优势.

In the paper,we adopte Monte Carlo method to study the statistical properties of the long polymethylene （ PM ） chain, such as the average probability distribution P （ r）, the average energy of each bond, the mean-square end-to-end distance （R^2） etc. In additional, the results also contrast the other results obtained by enumeration calculation method, and get the similar conclusions.