Dynamical suppression of 1/f noise processes in qubit systems

Details Dynamical suppression of 1/f noise processes in qubit systems Dynamical suppression of 1/f noise processes in qubit systems

2003-12-18

arxiv.org/abs/quant-ph/0312159v1

Physics

Quantum Physics

4 pages, 3 encapsulated color figures, REVTeX4 style

Scientific paper

10.1103/PhysRevLett.92.117905

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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