Optimal quantum error correction from Hamiltonian models or process tomography

A method is presented to integrate a complete “black-box” error correction scheme, that takes quantum process tomography as input and iterates until it finds an optimal error correcting encoding and recovery, thus tying theory to experimental decoherence control. The use of tomography in conjunction with optimal error correction has the potential to provide an effective and practical tool for the engineering development of a quantum computer.

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Published 30 March 2011