Physics – Quantum Physics
Scientific paper
2001-01-07
Physics
Quantum Physics
6 pages with figures
Scientific paper
The smallest quantum code that can correct all one-qubit errors is based on five qubits. We experimentally implemented the encoding, decoding and error-correction quantum networks using nuclear magnetic resonance on a five spin subsystem of labeled crotonic acid. The ability to correct each error was verified by tomography of the process. The use of error-correction for benchmarking quantum networks is discussed, and we infer that the fidelity achieved in our experiment is sufficient for preserving entanglement.
Knill Emanuel
Laflamme Raymond
Martinez Rafael
Negrevergne Camille
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