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Determination of the number of atoms trapped in an optical cavity

McKeever, J. and Buck, J. R. and Boozer, A. D. and Kimble, H. J. (2004) Determination of the number of atoms trapped in an optical cavity. Physical Review Letters, 93 (14). Art. No. 143601. ISSN 0031-9007.

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The number of atoms trapped within the mode of an optical cavity is determined in real time by monitoring the transmission of a weak probe beam. Continuous observation of atom number is accomplished in the strong coupling regime of cavity quantum electrodynamics and functions in concert with a cooling scheme for radial atomic motion. The probe transmission exhibits sudden steps from one plateau to the next in response to the time evolution of the intracavity atom number, from Ngreater than or equal to 3 to N=2-->1-->0 atoms, with some trapping events lasting over 1 s.

Item Type:Article
Additional Information:©2004 The American Physical Society. Received 16 March 2004; published 27 September 2004. This work is supported by the Caltech MURI Center for Quantum Networks under ARO Grant No. DAAD19-00-1-0374, by the National Science Foundation, and by the Office of Naval Research.
Subject Keywords:radiation pressure; laser cooling; quantum electrodynamics; quantum entanglement
Record Number:CaltechAUTHORS:MCKprl04
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3045
Deposited By: Tony Diaz
Deposited On:12 May 2006
Last Modified:18 Sep 2014 18:11

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