摘要翻译：
根据大量的实验结果，离子流体的金兹堡温度T_g与非离子流体的金兹堡温度T_g有很大的不同[Schr\\Oer W.,Weig{a}rtner H.2004{It Pure Appl.Chem.}{bf 76}19]。本文通过对t_{G}_的近程和长程相互作用的平均场分析，对这一结果进行了理论研究。我们考虑了一个由带电硬球组成的具有附加短程相互作用的非常一般的连续电荷-非对称模型（没有静电相互作用，该模型与三维伊辛模型属于相同的普适类）。导出了气液临界点附近全体系的有效Landau-Ginzburg哈密顿量，由此计算了Ginzburg温度作为离子度的函数。用这种方法对$t_{G}$得到的结果与现有的实验数据具有很好的定性和定量一致性。
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英文标题：
《Crossover behavior in fluids with Coulomb interactions》
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作者：
O.V. Patsahan, J.-M. Caillol, I.M. Mryglod
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最新提交年份：
2007
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分类信息：

一级分类：Physics        物理学
二级分类：Soft Condensed Matter        软凝聚态物质
分类描述：Membranes, polymers, liquid crystals, glasses, colloids, granular matter
膜，聚合物，液晶，玻璃，胶体，颗粒物质
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一级分类：Physics        物理学
二级分类：Statistical Mechanics        统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
  According to extensive experimental findings, the Ginzburg temperature $t_{G}$ for ionic fluids differs substantially from that of nonionic fluids [Schr\"oer W., Weig\"{a}rtner H. 2004 {\it Pure Appl. Chem.} {\bf 76} 19]. A theoretical investigation of this outcome is proposed here by a mean field analysis of the interplay of short and long range interactions on the value of $t_{G}$. We consider a quite general continuous charge-asymmetric model made of charged hard spheres with additional short-range interactions (without electrostatic interactions the model belongs to the same universality class as the 3D Ising model). The effective Landau-Ginzburg Hamiltonian of the full system near its gas-liquid critical point is derived from which the Ginzburg temperature is calculated as a function of the ionicity. The results obtained in this way for $t_{G}$ are in good qualitative and sufficient quantitative agreement with available experimental data.
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PDF链接：
https://arxiv.org/pdf/704.0544