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arXiv 1003.3420hep-thcond-mat.stat-mechquant-ph
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球-板和柱-板构型的Geekl-Casimir现象

Geothermal Casimir phenomena for the sphere-plate and cylinder-plate configurations

Alexej Weber, Holger Gies

摘要:

本文研究了球-板和柱-板结构中Casimir效应中几何形状和温度之间的非平凡相互作用。在低温下,Casimir力的热贡献主要由这种相互作用决定,这意味着即使在小表面分离的限制下,标准近似技术(如PFA)也不适用。热波长尺度上的热涨落导致低温下热力密度的离域。因此,温度依赖性与天真的期望有很大的不同。最显著的是,热力在低于临界温度时会产生非单调行为。我们使用狄利克雷标量波动的分析和数值世界线技术,对这些卡西米尔几何中的此类地热现象进行了全面的研究。

英文摘要:

We investigate the nontrivial interplay between geometry and temperature in the Casimir effect for the sphere-plate and cylinder-plate configurations. At low temperature, the thermal contribution to the Casimir force is dominated by this interplay, implying that standard approximation techniques such as the PFA are inapplicable even in the limit of small surface separation. Thermal fluctuations on scales of the thermal wavelength lead to a delocalization of the thermal force density at low temperatures. As a consequence, the temperature dependence strongly differs from naive expectations. Most prominently, thermal forces can develop non-monotonic behavior below a critical temperature. We perform a comprehensive study of such geothermal phenomena in these Casimir geometries, using analytical and numerical worldline techniques for Dirichlet scalar fluctuations.

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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