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Dynamical suppression of 1/f noise processes in qubit systems

Lara Faoro·Lorenza Viola
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Abstract

We investigate the capability of dynamical decoupling techniques to reduce decoherence from a realistic environment generating 1/f noise. The predominance of low frequency modes in the noise profile allows for decoherence scenarios where relatively slow control rates suffice for a drastic improvement. However, the actual figure of merit is very sensitive to the details of the dynamics, with decoupling performance which may deteriorate for non-Gaussian noise and/or high frequency working points. Our results are promising for robust solid-state qubits and beyond.

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Lara Faoro, Lorenza Viola. 2003-12-18. Dynamical suppression of 1/f noise processes in qubit systems. https://doi.org/10.1103/physrevlett.92.117905

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