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arXiv 1402.0195cond-mat.soft
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具有拓扑约束的环状聚合物

Ring polymers with topological constraints

Yani Zhao, Franco Ferrari

摘要:

本文的第一部分综述了近年来在非平凡拓扑构象高分子环体系研究中的一些实验和理论结果。接下来,介绍了单个聚合物结行为建模方面的一些进展。数值模拟的帮助下进行的Wang-Landau蒙特卡罗算法。为了对聚合物构象进行采样,使用称为枢轴移动的一组随机变换。的关键问题,保持的拓扑结构的结后,每一个移动的帮助下,这两个新的技术进行了简要说明。作为一个应用程序,拓扑结构对聚合物结的热性能的影响的调查结果的报告。最后,原始结果进行了讨论,关于使用并行代码来研究聚合物结内的大量段的王-朗道方法。

英文摘要:

In the first part of this work a summary is provided of some recent experiments and theoretical results which are relevant in the research of systems of polymer rings in nontrivial topological conformations. Next, some advances in modeling the behavior of single polymer knots are presented. The numerical simulations are performed with the help of the Wang-Landau Monte Carlo algorithm. To sample the polymer conformation a set of random transformations called pivot moves is used. The crucial problem of preserving the topology of the knots after each move is tackled with the help of two new techniques which are briefly explained. As an application, the results of an investigation of the effects of topology on the thermal properties of polymer knots is reported. In the end, original results are discussed concerning the use of parallelized codes to study polymers knots composed by a large number of segments within the Wang-Landau approach.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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