Quantum error correction for continuously detected errors with any number of error channels per qubit

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Title Quantum error correction for continuously detected errors with any number of error channels per qubit
Author Ahn, Charlene; Wiseman, Howard Mark; Jacobs, Kurt Aaron
Journal Name Physical Review A
Year Published 2004
Place of publication USA
Publisher American Physical Society
Abstract It was shown by Ahn, Wiseman, and Milburn [Phys. Rev. A 67, 052310 (2003)] that feedback control could be used as a quantum error correction process for errors induced by weak continuous measurement, given one perfectly measured error channel per qubit. Here we point out that this method can be easily extended to an arbitrary number of error channels per qubit. We show that the feedback protocols generated by our method encode n-2 logical qubits in n physical qubits, thus requiring just one more physical qubit than in the previous case.
Peer Reviewed Yes
Published Yes
Publisher URI http://pra.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevA.70.024302
Copyright Statement Copyright 2004 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's website for access to the definitive, published version.
Volume 70
Page from 024302.1
Page to 024302.3
ISSN 1050-2947
Date Accessioned 2005-03-07
Date Available 2009-10-12T23:15:37Z
Language en_AU
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science
Subject PRE2009-Quantum Optics and Lasers
URI http://hdl.handle.net/10072/5725
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1

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