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arXiv 0904.3887quant-phcond-mat.stat-mech
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带自由电荷介质间的Casimir力

Casimir Force Between Dielectric Media with Free Charges

Johan S. Høye, Iver Brevik

摘要:

用统计力学方法求解真空间隙下的Casimir问题是简洁而有效的。这种方法的一个核心成分是可极化粒子的相互作用的波动偶极矩的影响。在任意温度下,量子化粒子的路径积分公式是由Høye-Stell等人提出的。在高温下-本文件中考虑的限制-经典理论是足够的。我们目前的理论与Jancovici和{}amaj(2004)提出的一个想法有关,即利用电子等离子体模型和Debye-Hückel电解质理论来评估平行板之间的Casimir力。他们的结果最近由Høye(2008)使用相关的统计力学方法恢复。在本文中,我们概括了这一点,包括一个常数介电常数的描述。本文推广了我们早期的平行板理论(1998)和球面平板理论(2001)。我们还考虑了可极化粒子和具有小电荷密度的导体之间的Casimir力,发现与Pitaevskii(2008)最近导出的结果一致。

英文摘要:

The statistical mechanical approach to Casimir problems for dielectrics separated by a vacuum gap turns out to be compact and effective. A central ingredient of this method is the effect of interacting fluctuating dipole moments of the polarizable particles. At arbitrary temperature the path integral formulation of quantized particles, developed by Høye-Stell and others, is needed. At high temperature - the limit considered in the present paper - the classical theory is however sufficient. Our present theory is related to an idea put forward earlier by Jancovici and {Š}amaj (2004), namely to evaluate the Casimir force between parallel plates invoking an electronic plasma model and the Debye-Hückel theory for electrolytes. Their result was recently recovered by Høye (2008), using a related statistical mechanical method. In the present paper we generalize this by including a constant permittivity in the description. The present paper generalizes our earlier theory for parallel plates (1998), as well as for spherical dielectrics (2001). We also consider the Casimir force between a polarizable particle and a conductor with a small density of charges, finding agreement with the result recently derived by Pitaevskii (2008).

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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