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arXiv 2011.12821cond-mat.softcond-mat.stat-mechphysics.bio-phphysics.chem-ph
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驱动电解质中的长程涨落诱导力

Long-range fluctuation-induced forces in driven electrolytes

Saeed Mahdisoltani, Ramin Golestanian

摘要:

我们研究了由均匀外电场驱动的电解质的随机动力学,并表明,尽管存在德拜屏蔽,它具有通用的标度不变性。由此产生的长程相关性在中性边界之间产生了一种类似卡西米尔的波动诱导力,该力限制离子;这种力由外部电场控制,并且它可以在类似的边界条件下既是吸引力又是排斥力,这与其他长程波动诱导力不同。这项工作突出了电解质中非平衡相关性的重要性,并展示了它们如何用于调节不带电的生物或合成结构之间的相互作用。

英文摘要:

We study the stochastic dynamics of an electrolyte driven by a uniform external electric field and show that it exhibits generic scale invariance despite the presence of Debye screening. The resulting long-range correlations give rise to a Casimir-like fluctuation-induced force between neutral boundaries that confine the ions; this force is controlled by the external electric field, and it can be both attractive and repulsive with similar boundary conditions, unlike other long-range fluctuation-induced forces. This work highlights the importance of nonequilibrium correlations in electrolytes and shows how they can be used to tune interactions between uncharged biological or synthetic structures at large separations.

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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