Error tolerance and tradeoffs in loss- and failure-tolerant quantum computing schemes

Rohde, Peter P., Ralph, Timothy C. and Munro, William J. (2007) Error tolerance and tradeoffs in loss- and failure-tolerant quantum computing schemes. Physical Review A, 75 1: 010302-1-010302-4. doi:10.1103/PhysRevA.75.010302

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Author Rohde, Peter P.
Ralph, Timothy C.
Munro, William J.
Title Error tolerance and tradeoffs in loss- and failure-tolerant quantum computing schemes
Journal name Physical Review A   Check publisher's open access policy
ISSN 1050-2947
1094-1622
Publication date 2007-01-01
Sub-type Article (original research)
DOI 10.1103/PhysRevA.75.010302
Open Access Status File (Publisher version)
Volume 75
Issue 1
Start page 010302-1
End page 010302-4
Total pages 4
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Abstract Qubit loss and gate failure are significant problems for the development of scalable quantum computing. Recently, various schemes have been proposed for tolerating qubit loss and gate failure. These include schemes based on cluster and parity states. We show that by designing such schemes specifically to tolerate these error types we cause an exponential blowout in depolarizing noise. We discuss several examples and propose techniques for minimizing this problem. In general, this introduces a tradeoff with other undesirable effects. In some cases this is physical resource requirements, while in others it is noise rates.
Keyword Optics
Physics, Atomic, Molecular & Chemical
Correcting Codes
Computation
Q-Index Code C1

 
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Created: Tue, 19 Feb 2008, 02:09:05 EST