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Single atom in free space as a quantum aperture

van Enk, S. J. and Kimble, H. J. (2000) Single atom in free space as a quantum aperture. Physical Review A, 61 (5). Art. No. 051802. ISSN 1050-2947. doi:10.1103/PhysRevA.61.051802. https://resolver.caltech.edu/CaltechAUTHORS:ENKpra00

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Abstract

We calculate exact three-dimensional solutions of Maxwell equations corresponding to strongly focused light beams, and study their interaction with a single atom in free space. We show how the naive picture of the atom as an absorber with a size given by its radiative cross section σ = 3λ²/2π must be modified. The implications of these results for quantum-information-processing capabilities of trapped atoms are discussed.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1103/PhysRevA.61.051802DOIArticle
https://arxiv.org/abs/quant-ph/9908082arXivDiscussion Paper
Additional Information:© 2000 The American Physical Society. Received 6 January 2000; published 31 March 2000. We thank R. Legere for discussions. The work of H.J.K. is supported by the Division of Chemical Science, Office of Basic Energy Science, Office of Energy, U.S. Department of Energy. S.J.vE. is funded by DARPA through the QUIC (Quantum Information and Computing) program administered by the U.S. Army Research Office, the National Science Foundation, and the Office of Naval Research.
Funders:
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
NSFUNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
Issue or Number:5
DOI:10.1103/PhysRevA.61.051802
Record Number:CaltechAUTHORS:ENKpra00
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:ENKpra00
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:2679
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:16 Apr 2006
Last Modified:08 Nov 2021 19:50

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