Guidance and Control in a Josephson Charge Qubit
  In this paper we propose a control strategy based on a classical guidance law and consider its use for an example system: a Josephson charge qubit. We demonstrate how the guidance law can be used to attain a desired qubit state using the standard qubit control fields. 
J. F. Ralph, E. J. Griffith, T. D. Clark, M. J. Everitt