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Published March 2003 | Accepted Version + Published
Journal Article Open

Cavity QED and quantum-information processing with "hot" trapped atoms

Abstract

We propose a method to implement cavity QED and quantum-information processing in high-Q cavities with a single trapped but nonlocalized atom. The system is beyond the Lamb-Dicke limit due to the atomic thermal motion. Our method is based on adiabatic passages, which make the relevant dynamics insensitive to the randomness of the atom position with an appropriate interaction configuration. The validity of this method is demonstrated from both approximate analytical calculations and exact numerical simulations. We also discuss various applications of this method based on the current experimental technology.

Additional Information

© 2003 The American Physical Society. (Received 12 September 2002; published 17 March 2003) L.-M.D. thanks Axel Kuhn for discussions. This work was supported by the Caltech MURI Center for Quantum Networks under ARO Grant No. DAAD19-00-1-0374, by the National Science Foundation under Grant No. EIA-0086038, and by the Office of Naval Research. L.-M.D. also acknowledge support from the Chinese Science Foundation, Chinese Academy of Sciences, and the national "97.3" project.

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Accepted Version - 0208051.pdf

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August 22, 2023
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October 13, 2023