Effective error-suppression scheme for reversible quantum computer

Details Effective error-suppression scheme for reversible quantum computer Effective error-suppression scheme for reversible quantum computer

2006-08-20

arxiv.org/abs/quant-ph/0608152v4

Physics

Quantum Physics

6 pages, 5 figures

Scientific paper

We construct a new error-suppression scheme that makes use of the adjoint of reversible quantum algorithms. For decoherence induced errors such as depolarization, it is presented that provided the depolarization error probability is less than 1, our scheme can exponentially reduce the final output error rate to zero using a number of cycles, and the output state can be coherently sent to another stage of quantum computation process. Besides, experimental set-ups via optical approach have been proposed using Grover's search algorithm as an example. Some further discussion on the benefits and limitations of the scheme is given in the end.

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