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Quantum nondemolition measurements for quantum information

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Title Quantum nondemolition measurements for quantum information
Author Ralph, T. C.; Bartlett, S. D.; O'Brien, J. L.; Pryde, Geoff; Wiseman, Howard Mark
Journal Name Physical Review A
Year Published 2006
Place of publication Ridge, NY, USA
Publisher American Physical Society
Abstract We discuss the characterization and properties of quantum nondemolition (QND) measurements on qubit systems. We introduce figures of merit which can be applied to systems of any Hilbert space dimension, thus providing universal criteria for characterizing QND measurements. The controlled-NOT gate and an optical implementation are examined as examples of QND devices for qubits. We also consider the QND measurement of weak values.
Peer Reviewed Yes
Published Yes
Publisher URI http://pra.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevA.73.012113
Copyright Statement Copyright 2006 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.
Volume 73
Issue Number 1
Page from 012113-1
Page to 012113-11
ISSN 1050-2947
Date Accessioned 2006-07-19
Date Available 2009-09-24T05:55:46Z
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Physical Sciences; PRE2009-Quantum Optics and Lasers
URI http://hdl.handle.net/10072/14481
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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