Stretching semiflexible polymers: Gibbs versus Helmholtz ensembles.

IF 2.4 3区物理与天体物理 Q1 Mathematics

Physical review. E Pub Date : 2025-04-01 DOI:10.1103/PhysRevE.111.045402

Nigel T Andersen, Jeff Z Y Chen

引用次数: 0

Abstract

What differences in behavior can one draw between the measurable quantities in fixed-force and fixed-extension experiments on semiflexible polymers (such as DNA), stretched by applying a force? The marked difference between the two types of experiment, represented by two different scaling curves as a function of a reduced stretching force and reduced extension, is revealed here. Potential regions of the parameter space that could benefit from further experimental investigation are also suggested.

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拉伸半柔性聚合物：吉布斯与亥姆霍兹系综。

在半柔性聚合物（如DNA）上，通过施加力拉伸，固定力和固定延伸实验的可测量量在行为上有什么不同？两种实验之间的显著差异，用两种不同的缩放曲线表示为伸缩力减小和伸缩量减小的函数。本文还提出了参数空间的潜在区域，这些区域可以从进一步的实验研究中获益。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Physical review. E 物理-物理：流体与等离子体

CiteScore

4.60

自引率

16.70%

发文量

审稿时长

3.3 months

期刊介绍： Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.