Dynamical suppression of 1/f noise processes in qubit systems

Phys Rev Lett. 2004 Mar 19;92(11):117905. doi: 10.1103/PhysRevLett.92.117905. Epub 2004 Mar 18.

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.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Models, Theoretical*
  • Signal Processing, Computer-Assisted*
  • Spectrum Analysis / methods