Phys. Rev. Lett. 68, 3432–3435 (1992)Direct measurement of the van der Waals interaction between an atom and its images in a micron-sized cavityReceived 27 March 1992; published in the issue dated 8 June 1992 We have measured by laser spectroscopy the energy of interaction between a sodium atom and its images in the walls of a micron-sized cavity. This cavity-QED study is the first direct quantitative test of the Lennard-Jones van der Waals interaction as a function of controlled atom-surface separation and mean-square electric dipole moment. © 1992 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.68.3432
DOI:
10.1103/PhysRevLett.68.3432
PACS:
42.50.Wm, 32.70.Jz
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