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Quantum communication with dark photons

van Enk, S. J. and Kimble, H. J. and Cirac, J. I. and Zoller, P. (1999) Quantum communication with dark photons. Physical Review A, 59 (4). pp. 2659-2664. ISSN 1050-2947.

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We show that quantum information may be transferred between atoms in different locations by using “phantom” or “dark” photons: the atoms are coupled through electromagnetic fields, but the corresponding field modes do not have to be fully populated. In the case where atoms are placed inside optical cavities, errors in quantum information processing due to photon absorption inside the cavity are diminished in this way. This effect persists up to intercavity distances of about a meter for the current levels of cavity losses, and may be useful for distributed quantum computing.

Item Type:Article
Additional Information:©1999 The American Physical Society Received 1 May 1998 One of us (S.J.v.E) wishes to thank Klaus Mølmer and Xiatra Anderson for many stimulating discussions and dinners during the "Workshop on Quantum Computation and Quantum Optics" in Benasque (Spain). We thank Thomas Pellizzari for his inspiring talk at the ITAMP workshop on "Experimental Realizations of Quantum Logic" in Boston. This work was funded by DARPA through the QUIC (Quantum Information and Computing) Program administered by the U.S. Army Research Office, the National Science Foundation, the U.S. Office of Naval Research, and the European TMR Network No. ERB-FMRX-CT96-0087.
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Deposited On:16 Apr 2006
Last Modified:01 Nov 2013 18:35

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