The capacity of the noisy quantum channel

Abstract

An upper limit is given to the amount of quantum information that can be transmitted reliably down a noisy, decoherent quantum channel. A class of quantum error-correcting codes is presented that allow the information transmitted to attain this limit. The result is the quantum analog of Shannon's bound and code for the noisy classical channel.

19 pages, Submitted to Science. Replaced give correct references to work of Schumacher, to add a figure and an appendix, and to correct minor mistakes

References in corpus (2)

• Mixed State Entanglement and Quantum Error Correction
• Good Quantum Error-Correcting Codes Exist

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