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arXiv 1410.2015cond-mat.stat-mech
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受限二元混合物的临界涨落

Critical fluctuations of a confined binary mixture

Małgorzata Zubaszewska, Andrej Gendiar, Tomasz Masłowski

摘要:

利用二元混合物与伊辛模型之间的映射,我们用密度矩阵重整化群方法分析了临界涨落。计算了等强表面场作用下的二维伊辛带。结果表明,临界Casimir力在毛细凝结线两侧表现出明显不同的行为,特别是在低于临界温度时。结果表明,在实际二元混合物中,最大吸引力出现在温度T_C附近和储层组分稍偏离临界组分的地方。

英文摘要:

Exploiting the mapping between a binary mixture and the Ising model we have analyzed the critical fluctuations by means of the density-matrix renormalization group technique. The calculations have been carried out for a two-dimensional Ising strip subject to equal strong surface fields. It was found that the critical Casimir force displays significantly different behavior on opposite sides of the capillary condensation line, especially below the critical temperature. It can be concluded that in a real binary mixtures the most attractive force appears at temperatures near T_C and at reservoir compositions slightly away from the critical composition.

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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