Physics – Atomic Physics
Scientific paper
2009-10-20
Physics
Atomic Physics
4 pages, 3 figures
Scientific paper
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.
Bender Helmar
Courteille Philippe W.
Marzok Carsten
Slama Sebastian
Zimmermann Claus
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