Fault tolerance in parity-state linear optical quantum computing

Hayes, A. J. F., Haselgrove, H. L., Gilchrist, Alexei and Ralph, T. C. (2010) Fault tolerance in parity-state linear optical quantum computing. Physical Review A, 82 2: 022323-1-022323-9. doi:10.1103/PhysRevA.82.022323

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Author Hayes, A. J. F.
Haselgrove, H. L.
Gilchrist, Alexei
Ralph, T. C.
Title Fault tolerance in parity-state linear optical quantum computing
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
Publication date 2010-08
Sub-type Article (original research)
DOI 10.1103/PhysRevA.82.022323
Open Access Status File (Publisher version)
Volume 82
Issue 2
Start page 022323-1
End page 022323-9
Total pages 9
Place of publication College Park, MD, United States
Publisher American Physical Society
Collection year 2011
Language eng
Abstract We use a combination of analytical and numerical techniques to calculate the noise threshold and resource requirements for a linear optical quantum computing scheme based on parity-state encoding. Parity-state encoding is used at the lowest level of code concatenation in order to efficiently correct errors arising from the inherent nondeterminism of two-qubit linear-optical gates. When combined with teleported error-correction (using either a Steane or Golay code) at higher levels of concatenation, the parity-state scheme is found to achieve a saving of approximately three orders of magnitude in resources when compared to the cluster state scheme, at a cost of a somewhat reduced noise threshold. © 2010 The American Physical Society
Keyword Cluster state
Correct error
Golay code
Linear optical quantum computing
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
Centre for Quantum Computer Technology Publications
Official 2011 Collection
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 13 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 9 times in Scopus Article | Citations
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Created: Sun, 12 Sep 2010, 00:01:38 EST