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arXiv 1406.0356cond-mat.soft
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如何量化流体中的结构异常?

How to quantify structural anomalies in fluids?

Yu. D. Fomin, B. A. Klumov, V. N. Ryzhov, E. N. Tsiok

摘要:

已知某些流体的行为是有害的。所谓的构造异常,即流体在等温压缩下变得更少的结构,是最经常讨论的一种。文献中描述了几种用于量化结构有序度的方法,并用于计算结构异常区域。这意味着,所有的结构顺序的测定产生定性相同的结果。然而,没有进行明确的比较。本文首次提出了这样的比较。某些定义的结果与流体的直观概念相矛盾。在此比较的基础上,我们表明,结构异常可以最可靠地确定的行为的过剩熵。

英文摘要:

Some fluids are known to behave anomalously. The so-called structural anomaly which means that the fluid becomes less structures under isothermal compression is among the most frequently discussed ones. Several methods for quantifying the degree of structural order are described in the literature and are used for calculating the regions of structural anomalies. It is implied that all of the structural order determinations yield qualitatively identical results. However, no explicit comparison was made. This paper presents such a comparison for the first time. the results of some definitions are shown to contradict the intuitive notion of a fluid. On the basis of this comparison we show that the structural anomaly can be most reliably determined from the behavior of the excess entropy.

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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