arXiv quant-ph/06111552006-11-14quant-phhep-th

Casimir力的样本依赖性

Sample dependence of the Casimir forces

I. Pirozhenko, A. Lambrecht, V. B. Svetovoy

备注：: 16 pages, 8 figures, uses iopart.sty
发表信息：: NewJ.Phys.8:238,2006
DOI：: 10.1088/1367-2630/8/10/238

摘要：

我们已经分析了现有的光学数据，金在中红外范围内，这是重要的精确预测的卡西米尔力。数据的显着变化表明真正的样品依赖的介电函数。我们证明，Casimir力在很大程度上是由材料的性能在低频域，并认为，因此，精确的德鲁德参数的值是至关重要的力的准确评估。这些参数可以通过两种不同的方法来估计，或者通过在低频下拟合介电函数的实部和虚部，或者通过基于扩展频率范围内的介电函数的虚部的Kramers-Kronig分析。这两种方法导致非常相似的结果。我们表明，使用不同的光学数据计算的卡西米尔力的变化可以高达5%，在任何速度都不能忽略。为了以1%的精度可靠地预测力，必须测量用于力测量的金属膜的光学性质。

英文摘要：

We have analyzed available optical data for Au in the mid-infrared range which is important for a precise prediction of the Casimir force. Significant variation of the data demonstrates genuine sample dependence of the dielectric function. We demonstrate that the Casimir force is largely determined by the material properties in the low frequency domain and argue that therefore the precise values of the Drude parameters are crucial for an accurate evaluation of the force. These parameters can be estimated by two different methods, either by fitting real and imaginary parts of the dielectric function at low frequencies, or via a Kramers-Kronig analysis based on the imaginary part of the dielectric function in the extended frequency range. Both methods lead to very similar results. We show that the variation of the Casimir force calculated with the use of different optical data can be as large as 5% and at any rate cannot be ignored. To have a reliable prediction of the force with a precision of 1%, one has to measure the optical properties of metallic films used for the force measurement.

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。

摘要：

英文摘要：

相关论文