Fault-Tolerant Linear Optical Quantum Computing with Small-Amplitude Coherent States

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Title Fault-Tolerant Linear Optical Quantum Computing with Small-Amplitude Coherent States
Author Lund, Austin; Ralph, T. C.; Haselgrove, H. L.
Journal Name Physical Review Letters
Year Published 2008
Place of publication Ridge, NY
Publisher American Physical Society
Abstract Quantum computing using two coherent states as a qubit basis is a proposed alternative architecture with lower overheads but has been questioned as a practical way of performing quantum computing due to the fragility of diagonal states with large coherent amplitudes. We show that using error correction only small amplitudes (α>1.2) are required for fault-tolerant quantum computing. We study fault tolerance under the effects of small amplitudes and loss using a Monte Carlo simulation. The first encoding level resources are orders of magnitude lower than the best single photon scheme.
Peer Reviewed Yes
Published Yes
Publisher URI http://prl.aps.org/
Alternative URI http://dx.doi.org/10.1103/PhysRevLett.100.030503
Copyright Statement Copyright 2008 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 100
Issue Number 3
Page from 030503-1
Page to 030503-4
ISSN 0031-9007
Date Accessioned 2009-11-30
Language en_AU
Faculty Faculty of Science, Environment, Engineering and Technology
Subject PRE2009-Optical Physics
URI http://hdl.handle.net/10072/27290
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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