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Advances in quantum metrology

Author(s)
Giovannetti, Vittorio; Lloyd, Seth; Maccone, Lorenzo
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Abstract
The statistical error in any estimation can be reduced by repeating the measurement and averaging the results. The central limit theorem implies that the reduction is proportional to the square root of the number of repetitions. Quantum metrology is the use of quantum techniques such as entanglement to yield higher statistical precision than purely classical approaches. In this Review, we analyse some of the most promising recent developments of this research field and point out some of the new experiments. We then look at one of the major new trends of the field: analyses of the effects of noise and experimental imperfections.
Date issued
2011-03
URI
http://hdl.handle.net/1721.1/78939
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering; Massachusetts Institute of Technology. Research Laboratory of Electronics
Journal
Nature Photonics
Publisher
Nature Publishing Group
Citation
Giovannetti, Vittorio, Seth Lloyd, and Lorenzo Maccone. Advances in Quantum Metrology. Nature Photonics 5, no. 4 (April 2011): 222-229.
Version: Author's final manuscript
ISSN
1749-4885
1749-4893

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