SMIRNOV, A.Y. and ZAGOSKIN, A.M., 2002. Quantum entanglement of flux qubits via a resonator. Presented at the Workshop on Quantum Device Technology, Clarkson University, May 20-24.
We show that flux qubits can be efficiently entangled by inductive coupling to a tunable resonant circuit, in the scheme reminiscent of atoms' entanglement through the optical cavity mode. It is shown, in particular, that the single-photon excitation of the resonator produces the pure Bell state of qubits with the completely disentangled LC circuit.