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arXiv physics/0305054physics.chem-phphysics.bio-ph
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经典液体中堆积的自洽分子场论

Self Consistent Molecular Field Theory for Packing in Classical Liquids

Lawrence R. Pratt, Henry S. Ashbaugh

摘要:

本文基于溶液理论的准化学公式,提出了一种求解经典液体填充问题的自洽分子场论,并检验了硬球流体过剩化学势的理论预言。结果给出了自洽的分子场,并为分子观测体积的占用概率。对于这个系统,预测的过量化学势是准确的最准确的先前的理论,特别是缩放粒子(打击-Yevick压缩性)理论。有人认为,目前的方法是特别简单的,并应提供一个分子尺度的描述更复杂的解决方案的基础。

英文摘要:

Building on a quasi-chemical formulation of solution theory, this paper proposes a self consistent molecular field theory for packing problems in classical liquids, and tests the theoretical predictions for the excess chemical potential of the hard sphere fluid. Results are given for the self consistent molecular fields obtained, and for the probabilities of occupancy of a molecular observation volume. For this system, the excess chemical potential predicted is as accurate as the most accurate prior theories, particularly the scaled particle (Percus-Yevick compressibility) theory. It is argued that the present approach is particularly simple, and should provide a basis for a molecular-scale description of more complex solutions.

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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