Fault tolerant quantum computation with very high threshold for loss errors

Many proposals for fault tolerant quantum computation (FTQC) suffer detectable loss processes. Here we show that topological FTQC schemes, which are known to have high error thresholds, are also extremely robust against losses. We demonstrate that these schemes tolerate loss rates up to 24.9%, deter...

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Bibliographic Details
Published in:Physical review letters 2010-11, Vol.105 (20), p.200502-200502, Article 200502
Main Authors: Barrett, Sean D, Stace, Thomas M
Format: Article
Language:English
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Summary:Many proposals for fault tolerant quantum computation (FTQC) suffer detectable loss processes. Here we show that topological FTQC schemes, which are known to have high error thresholds, are also extremely robust against losses. We demonstrate that these schemes tolerate loss rates up to 24.9%, determined by bond percolation on a cubic lattice. Our numerical results show that these schemes retain good performance when loss and computational errors are simultaneously present.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.105.200502