Sparse Graph Codes for Quantum Error-Correction

Details Sparse Graph Codes for Quantum Error-Correction Sparse Graph Codes for Quantum Error-Correction

2003-04-24

arxiv.org/abs/quant-ph/0304161v3

IEEE Transactions on Information Theory, Vol. 50, No. 10, p. 2315 (2004).

Physics

Quantum Physics

Version 7.3e: 42 pages. Extended version, Feb 2004. A shortened version was resubmitted to IEEE Transactions on Information Th

Scientific paper

We present sparse graph codes appropriate for use in quantum error-correction. Quantum error-correcting codes based on sparse graphs are of interest for three reasons. First, the best codes currently known for classical channels are based on sparse graphs. Second, sparse graph codes keep the number of quantum interactions associated with the quantum error correction process small: a constant number per quantum bit, independent of the blocklength. Third, sparse graph codes often offer great flexibility with respect to blocklength and rate. We believe some of the codes we present are unsurpassed by previously published quantum error-correcting codes.

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