Asymmetric quantum error-correcting codes

Journal Article · Thu Mar 15 00:00:00 EDT 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.032345· OSTI ID:20982291

Ioffe, Lev ^[1]; Mezard, Marc ^[2]

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1. Center for Materials Theory, Department of Physics and Astronomy, Rutgers University, 136 Frelinghuysen Road, Piscataway, New Jersey 08854 (United States)
2. CNRS, Universite Paris-Sud, UMR 8626, LPTMS, Orsay Cedex F-91405 (France)

The noise in physical qubits is fundamentally asymmetric: in most devices, phase errors are much more probable than bit flips. We propose a quantum error-correcting code that takes advantage of this asymmetry and shows good performance at a relatively small cost in redundancy, requiring less than a doubling of the number of physical qubits for error correction. This code is particularly adapted for building an efficient quantum memory.

• OSTI ID: 20982291
• Journal Information: Physical Review. A, Vol. 75, Issue 3; Other Information: DOI: 10.1103/PhysRevA.75.032345; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ASYMMETRY
COMPUTER CODES
CORRECTIONS
ERRORS
NOISE
QUANTUM COMPUTERS
QUANTUM MECHANICS
QUBITS