  We present a way for fast implementation of a two-qubit controlled phase gate
with superconducting flux qubits coupled to a cavity. A distinct feature of
this proposal is that since only qubit-cavity resonant interaction and
qubit-pulse resonant interaction are used, the gate can be performed much
faster when compared with the previous proposals. This proposal does not
require adjustment of the qubit level spacings during the gate operation. In
addition, neither uniformity in the qubit parameters nor exact placement of
qubits in the cavity is needed by this proposal.
