A global-update simulation method for polymer systems

A global-update simulation method for polymer systems
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聚合物系统的全局更新模拟方法

DOI:
10.1002/mats.1993.040020301
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发表时间:
1993
期刊:
Die Makromolekulare Chemie, Theory and Simulations
影响因子:
--
通讯作者:
L. Yixue
L. Yixue
中科院分区:
--
文献类型:
--
作者:
D. Heermann;L. Yixue

文献摘要

被引文献

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我们描述了一种结合分子动力学和蒙特卡罗方法的混合蒙特卡罗算法,并将其应用于聚合物体系的模拟。证明了能观量与离散化误差无关,并分析了其性能,即可观量的自相关时间。对于代表聚乙烯熔体的稠密体系,我们给出了本体中链的对分布函数和均方位移的数据。我们还研究了在算法中使用比例哈密顿量的可能性。
We describe a hybrid Monte Carlo algorithm, combining molecular dynamics with the Monte Carlo method, applied to the simulation of polymer systems. It is shown that observables are independent of the discretization error, and the performance, i.e., autocorrelation times of observables, is analyzed. For a dense system representing a polyethylene melt, we present data for the pair distribution function and the mean square displacement of a chain in the bulk. We also investigate the possibility of using a scaled Hamiltonian in the algorithm.