arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2203.00744cond-mat.soft
收藏

活性聚合物之间的有效力

Effective forces between active polymers

M. C. Gandikota, A. Cacciuto

摘要:

两种完全柔性的自回避聚合物之间相互作用的表征是高分子物理中的经典问题之一。在本文中,我们测量这些相互作用的存在下,积极的波动。我们引入活动的问题,使用两个最流行的模型在这个领域。一种是活性有效地嵌入单体的动力学中,另一种是被动聚合物在活性颗粒的显式浴中波动。我们建立的条件下,活性聚合物之间的相互作用可以映射到经典的被动问题。我们观察到,活性浴可以驱动聚合物之间强吸引力相互作用的发展,并且在实施显著程度的重叠后,它们聚集在一起形成单个双链单元。还报道了跟踪这种构象行为变化的相图。

英文摘要:

The characterization of the interactions between two fully flexible self-avoiding polymers is one of the classic and most important problems in polymer physics. In this paper we measure these interactions in the presence of active fluctuations. We introduce activity into the problem using two of the most popular models in this field. One where activity is effectively embedded into the monomers' dynamics, and the other where passive polymers fluctuate in an explicit bath of active particles. We establish the conditions under which the interaction between active polymers can be mapped into the classical passive problem. We observe that the active bath can drive the development of strong attractive interactions between the polymers and that, upon enforcing a significant degree of overlap, they come together to form a single double-stranded unit. A phase diagram tracing this change in conformational behavior is also reported.

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。

↑