Optimal correction of independent and correlated errors
Abstract
We identify optimal quantum error correction codes for situations that do not admit perfect correction. We provide analytic n-qubit results for standard cases with correlated errors on multiple qubits and demonstrate significant improvements to the fidelity bounds and optimal entanglement decay profiles.
- Publication:
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Journal of Physics A Mathematical General
- Pub Date:
- January 2014
- DOI:
- 10.1088/1751-8113/47/4/045306
- arXiv:
- arXiv:1302.6450
- Bibcode:
- 2014JPhA...47d5306J
- Keywords:
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- Quantum Physics
- E-Print:
- 11 pages, 4 figures. Updated to include fidelity analysis