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arXiv 1012.0860quant-phcond-mat.soft
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Casimir微球团簇与流体三体效应

Casimir micro-sphere diclusters and three-body effects in fluids

Jaime Varela, Alejandro W. Rodriguez, Alexander P. McCauley, Steven G. Johnson

摘要:

我们以前的文章[物理学。104,060401(2010)]预测,由某些物质的物质色散特性引起的卡西米尔力可以产生物体的稳定构型。这种现象是通过一个非接触物体的双簇结构来说明的,该物体由两个浸入流体中的球体组成,并克服重力悬浮在平板上方。在这里,我们从实际实验的角度来研究这些预测,并考虑非加性,三体和非零温度效应对两个球的稳定性的影响。我们的结论是,布朗运动的存在减少了实验上可实现的硅/碲球形双团簇的集合,使其成为由分层微球组成的那些,例如这里考虑的空心(球壳)。

英文摘要:

Our previous article [Phys. Rev. Lett. 104, 060401 (2010)] predicted that Casimir forces induced by the material-dispersion properties of certain dielectrics can give rise to stable configurations of objects. This phenomenon was illustrated via a dicluster configuration of non-touching objects consisting of two spheres immersed in a fluid and suspended against gravity above a plate. Here, we examine these predictions from the perspective of a practical experiment and consider the influence of non-additive, three-body, and nonzero-temperature effects on the stability of the two spheres. We conclude that the presence of Brownian motion reduces the set of experimentally realizable silicon/teflon spherical diclusters to those consisting of layered micro-spheres, such as the hollow- core (spherical shells) considered here.

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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