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arXiv 0910.3837physics.atom-phphysics.gen-ph
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中量程Casimir-Polder电位的直接测量

Direct Measurement of intermediate-range Casimir-Polder potentials

Helmar Bender, Philippe W. Courteille, Carsten Marzok, Claus Zimmermann, Sebastian Slama

摘要:

我们提出了第一个直接测量固体表面和原子气体之间的Casimir-Polder力的过渡制度之间的静电短距离和延迟长距离的限制。实验方法是基于超冷的基态Rb原子,从在介电玻璃棱镜的表面的倏逝波势垒反射。我们的新方法不需要对潜在形状进行假设。实验数据证实了理论预测的过渡区。

英文摘要:

We present the first direct measurements of Casimir-Polder forces between solid surfaces and atomic gases in the transition regime between the electrostatic short-distance and the retarded long-distance limit. The experimental method is based on ultracold ground-state Rb atoms that are reflected from evanescent wave barriers at the surface of a dielectric glass prism. Our novel approach does not require assumptions about the potential shape. The experimental data confirm the theoretical prediction in the transition regime.

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