Nonadditive quantum error-correcting code. | LitMetric

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Nonadditive quantum error-correcting code. | LitMetric

Nonadditive quantum error-correcting code.

Sixia Yu Qing Chen C H Lai C H Oh

Phys Rev Lett

Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.

Published: August 2008

We report the first nonadditive quantum error-correcting code, namely, a ((9, 12, 3)) code which is a 12-dimensional subspace within a 9-qubit Hilbert space, that outperforms the optimal stabilizer code of the same length by encoding more levels while correcting arbitrary single-qubit errors. Taking advantage of the graph states, we construct explicitly a complete encoding-decoding circuit for the proposed nonadditive error-correcting code.

Download full-text PDF	Source
http://dx.doi.org/10.1103/PhysRevLett.101.090501	DOI Listing

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