MilestoneError correctionConfirmed

Knill and Laflamme establish when quantum errors can be corrected

Apr 26, 1996

Emanuel Knill and Raymond Laflamme derive necessary and sufficient conditions for perfectly recovering encoded quantum information after noise. The result gives a general test for whether a code can correct a specified set of errors.

Why it matters

A general recovery criterion lets researchers design and assess quantum codes beyond the first individual examples.

Emanuel Knill · Raymond Laflamme

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Related

• Peter Shor shows quantum information can be protected from errors (Oct 1, 1995)
• A five-qubit code protects quantum information against any single-qubit error (Feb 27, 1996)