Time-Reversal and Super-Resolving Phase Measurements

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Title Time-Reversal and Super-Resolving Phase Measurements
Author Resch, K. J.; Pregnell, K. L.; Prevedel, R.; Gilchrist, A.; Pryde, Geoff; O'Brien, J. L.; White, A. G.
Journal Name Physical Review Letters
Year Published 2007
Place of publication United States
Publisher American Physical Society
Abstract We demonstrate phase super-resolution in the absence of entangled states. The key insight is to use the inherent time-reversal symmetry of quantum mechanics: our theory shows that it is possible to measure, as opposed to prepare, entangled states. Our approach is robust, requiring only photons that exhibit classical interference: we experimentally demonstrate high-visibility phase super-resolution with three, four, and six photons using a standard laser and photon counters. Our six-photon experiment demonstrates the best phase super-resolution yet reported with high visibility and resolution.
Peer Reviewed Yes
Published Yes
Publisher URI http://prl.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevLett.98.223601
Copyright Statement Copyright 2007 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 98
Issue Number 22
Page from 223601-1
Page to 223601-4
ISSN 0031-9007
Date Accessioned 2007-06-01
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/10072/15624
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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