### Session T5: 20 Years of Quantum Information in Physical Review Letters

2:30 PM–5:30 PM, Wednesday, March 23, 2011
Room: Ballroom C1

Chair: John Preskill, California Institute of Technology

Abstract ID: BAPS.2011.MAR.T5.2

### Abstract: T5.00002 : Twenty Years of Quantum Error Correction

3:06 PM–3:42 PM

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#### Author:

David DiVincenzo
(Forschungszentrum Juelich \& RWTH Aachen)

Starting around 1991 It became clear that the emerging quantum computer would need error correction to be sensible. Almost immediately, Berthiaume, Deutsch, and Jozsa announced the first key ideas (e.g., allowed codewords should live in a well-defined subset of the Hilbert space), and in less than ten years, the problem was solved.'' This solution had many components, involving insights from quantum teleportation, the concept of noisy entanglement and its improvement, creative borrowings from classical binary and quaternary codes, pure group theory, and the reliable working of noisy automata. Actually, this solved'' problem continues to produce new difficulties and insights up to the present day, and it is increasingly central for the question of what we do next in the progress towards a functioning quantum computer.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2011.MAR.T5.2