Dynamical suppression of 1/f noise processes in qubit systems.
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.
Faoro
Lara
L
Institute for Scientific Interchange Foundation, Viale Settimio Severo 65, 10133 Torino, Italy. faoro@isiosf.isi.it
Viola
Lorenza
L
D008962:Models, Theoretical; D012815:Signal Processing, Computer-Assisted; D013057:Spectrum Analysis / Q000379:methods