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Phys. Rev. A 62, 052108 (2000) [4 pages]

Entangled coherent-state qubits in an ion trap

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W. J. Munro1,*, G. J. Milburn1, and B. C. Sanders2
1Department of Physics, The University of Queensland, Brisbane, Queensland 4072, Australia
2Department of Physics, Macquarie University, Sydney, New South Wales 2109, Australia

Received 13 October 1999; published 16 October 2000

We show how entangled qubits can be encoded as entangled coherent states of two-dimensional center-of-mass vibrational motion for two ions in an ion trap. The entangled qubit state is equivalent to the canonical Bell state, and we introduce a proposal for entanglement transfer from the two vibrational modes to the electronic states of the two ions in order for the Bell state to be detected by resonance fluorescence shelving methods.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.62.052108
DOI:
10.1103/PhysRevA.62.052108
PACS:
03.65.Bz

*Electronic address: billm@physics.uq.edu.au

 
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