Approximate Quantum Error Correction
Quantum Information Processing
Operator quantum error correction
Quantum Information & Computation
Approximate quantum error-correcting codes and secret sharing schemes
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
The capacity of hybrid quantum memory
IEEE Transactions on Information Theory
The Information-Disturbance Tradeoff and the Continuity of Stinespring's Representation
IEEE Transactions on Information Theory
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We study the approximate correctability of general algebras of observables, which represent hybrid quantum-classical information. This includes approximate quantum error correcting codes and subsystems codes. We show that the main result of [1] yields a natural generalization of the Knill-Laflamme conditions in the form of a dimension independent estimate of the optimal reconstruction error for a given encoding, measured using the trace-norm distance to a noiseless channel.