Schrodinger cats and their power for quantum information processing

Gilchrist, A., Nemoto, K., Munro, W. J., Ralph, T. C., Glancy, S., Braunstein, S. L. and Milburn, G. J. (2004) Schrodinger cats and their power for quantum information processing. Journal of Optics B- Quantum and Semiclassical Optics, 6 8: S828-S833. doi:10.1088/1464-4266/6/8/032


Author Gilchrist, A.
Nemoto, K.
Munro, W. J.
Ralph, T. C.
Glancy, S.
Braunstein, S. L.
Milburn, G. J.
Title Schrodinger cats and their power for quantum information processing
Journal name Journal of Optics B- Quantum and Semiclassical Optics   Check publisher's open access policy
ISSN 1464-4266
1741-3575
Publication date 2004-01-01
Sub-type Article (original research)
DOI 10.1088/1464-4266/6/8/032
Volume 6
Issue 8
Start page S828
End page S833
Total pages 6
Editor E. Arimondo
Place of publication Bristol, U.K.
Publisher Institute of Physics Publishing
Collection year 2004
Language eng
Subject C1
240402 Quantum Optics and Lasers
780102 Physical sciences
Abstract We outline a toolbox comprised of passive optical elements, single photon detection and superpositions of coherent states (Schrodinger cat states). Such a toolbox is a powerful collection of primitives for quantum information processing tasks. We illustrate its use by outlining a proposal for universal quantum computation. We utilize this toolbox for quantum metrology applications, for instance weak force measurements and precise phase estimation. We show in both these cases that a sensitivity at the Heisenberg limit is achievable.
Keyword Optics
Computation
Quantum information processing
Schrodinger cats
Quantum metrology
High precision measurements
Quantum toolbox
Spectroscopy
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 14:18:10 EST