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arXiv 0910.3092cond-mat.softcond-mat.stat-mech
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用电场控制封闭流体的组成

Controlling the composition of a confined fluid by an electric field

C. Brunet, J. G. Malherbe, S. Amokrane

摘要:

从一个通用模型的孔/散装混合物平衡,我们提出了一种新的方法,用于调制的封闭流体的组成,而不必修改散装状态。为了实现这一点,两个基本的机制-灵敏度的孔隙填充体的热力学状态和电场效应-相结合。我们通过蒙特卡罗模拟表明,组成可以控制在一个连续的和跳跃的方式。在大体积分层不稳定性附近,我们证明了在孔隙中的场诱导的粒子数反转。实现该方法的条件应最好用胶体来满足,但基于稳健和通用的机制,它也应该适用于某些分子流体。

英文摘要:

Starting from a generic model of a pore/bulk mixture equilibrium, we propose a novel method for modulating the composition of the confined fluid without having to modify the bulk state. To achieve this, two basic mechanisms - sensitivity of the pore filling to the bulk thermodynamic state and electric field effect - are combined. We show by Monte Carlo simulation that the composition can be controlled both in a continuous and in a jumpwise way. Near the bulk demixing instability, we demonstrate a field induced population inversion in the pore. The conditions for the realization of this method should be best met with colloids, but being based on robust and generic mechanisms, it should also be applicable to some molecular fluids.

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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