1. A circuit comprising: a superconducting qubit having a qubit frequency between 0.8 GHz and 40 GHz; a resonant control system that is characterized by a resonant frequency, wherein said resonant frequency is a function of a bias current; and a superconducting mechanism coherently coupled to the superconducting qubit and said resonant control system, wherein said superconducting mechanism has a capacitance or an inductance.