General conditions for approximate quantum error correction and near-optimal recovery channels

We derive necessary and sufficient conditions for the approximate correctability of a quantum code, generalizing the Knill-Laflamme conditions for exact error correction. Our measure of success of the recovery operation is the worst-case entanglement fidelity. We show that the optimal recovery fidel...

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Bibliographic Details
Published in:Physical review letters, Vol. 104, No. 12 (2010), p. 120501
Main Author: Bény, Cédric (Author)
Other Involved Persons: Oreshkov, Ognyan
Format: electronic Article
Item Description:Date Completed 22.06.2010
Date Revised 06.04.2010
published: Print-Electronic
Citation Status PubMed-not-MEDLINE
Copyright: From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Physical Description:Online-Ressource
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