Demonstration of a Simple Entangling Optical Gate and Its Use in Bell-State Analysis

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Title Demonstration of a Simple Entangling Optical Gate and Its Use in Bell-State Analysis
Author Langford, N. K.; Weinhold, T. J.; Prevedel, R.; Resch, K. J.; Gilchrist, A.; O'Brien, J. L.; Pryde, Geoff; White, A. G.
Journal Name Physical Review Letters
Year Published 2005
Place of publication Ridge, NY
Publisher American Physical Society
Abstract We demonstrate a new architecture for an optical entangling gate that is significantly simpler than previous realizations, using partially polarizing beam splitters so that only a single optical mode-matching condition is required. We demonstrate operation of a controlled-Z gate in both continuous-wave and pulsed regimes of operation, fully characterizing it in each case using quantum process tomography. We also demonstrate a fully resolving, nondeterministic optical Bell-state analyzer based on this controlled-Z gate. This new architecture is ideally suited to guided optics implementations of optical gates.
Peer Reviewed Yes
Published Yes
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Copyright Statement Copyright 2005 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 95
Issue Number 21
Page from 210504-1
Page to 210504-4
ISSN 1079-7114
Date Accessioned 2006-06-23
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science
Subject PRE2009-Physical Sciences; PRE2009-Quantum Optics and Lasers
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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