Operator quantum error correction

Details Operator quantum error correction Operator quantum error correction

2005-04-26

arxiv.org/abs/quant-ph/0504189v3

Quant. Inf. & Comp., 6 (2006), 383-399.

Physics

Quantum Physics

21 pages, to appear in Quantum Information & Computation

Scientific paper

This paper is an expanded and more detailed version of our recent work in which the Operator Quantum Error Correction formalism was introduced. This is a new scheme for the error correction of quantum operations that incorporates the known techniques - i.e. the standard error correction model, the method of decoherence-free subspaces, and the noiseless subsystem method - as special cases, and relies on a generalized mathematical framework for noiseless subsystems that applies to arbitrary quantum operations. We also discuss a number of examples and introduce the notion of ``unitarily noiseless subsystems''.

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