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arXiv quant-ph/0212154quant-ph
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吸收多层膜间的三维Casimir力

Three-dimensional Casimir force between absorbing multilayer dielectrics

Christian Raabe, Ludwig Knöll, Dirk-Gunnar Welsch

备注：
19 pages, 17 figures -- published in Phys. Rev. A
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摘要：

最近，在存在因果介质的电磁场的一维量子化方案中，研究了零温极限下介电和几何特性对色散和吸收多层板之间的Casimir力的影响[R.埃斯基韦尔-锡尔旺角Villarreal和G.H. Cocoletzi，Phys. Rev. Lett. 64，052108（2001）]。本文给出了一个严格的三维分析，表明对于复杂的异质结构，一维理论只能粗略地反映Casimir力对板间距的依赖关系。此外，最近导出的零温度下Casimir力公式的扩展[M. S. Tomawei，Phys.Rev.A66，052103（2002）]到有限温度的距离定律，并推导出零温度极限下特定距离定律的解析表达式。特别是，研究表明，两个单板板之间的卡西米尔力的渐进行为类似于$d^{-6}$，而不是$d^{-4}$（$d$，板分离）。

英文摘要：

Recently the influence of dielectric and geometrical properties on the Casimir force between dispersing and absorbing multilayered plates in the zero-temperature limit has been studied within a 1D quantization scheme for the electromagnetic field in the presence of causal media [R. Esquivel-Sirvent, C. Villarreal, and G.H. Cocoletzi, Phys. Rev. Lett. 64, 052108 (2001)]. In the present paper a rigorous 3D analysis is given, which shows that for complex heterostructures the 1D theory only roughly reflects the dependence of the Casimir force on the plate separation in general. Further, an extension of the very recently derived formula for the Casimir force at zero temperature [M.S. Tomaš, Phys. Rev. A 66, 052103 (2002)] to finite temperatures is given, and analytical expressions for specific distance laws in the zero-temperature limit are derived. In particular, it is shown that the Casimir force between two single-slab plates behaves asymptotically like $d^{-6}$ in place of $d^{-4}$ ($d$, plate separation).

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