Error correction in short time steps during the application of quantum gates

Details Error correction in short time steps during the application of quantum gates Error correction in short time steps during the application of quantum gates

2011-09-22

arxiv.org/abs/1109.4796v1

Physics

Quantum Physics

Scientific paper

We propose a method for applying the quantum error-correction method for errors that occur during quantum gates. Using a perturbation treatment of the noise that allows us to separate it from the ideal evolution of the quantum gate, we demonstrate that in certain cases it is necessary to divide the quantum gate in short time steps intercalated by correction procedures. A prescription of how these gates can be constructed is provided, as well as a proof that, even for the cases when the division of the quantum gate in short time steps is not necessary, this method may be advantageous for reducing the total duration of the computation.

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