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.
@article{arxiv.cond-mat/0207214,
title = {Quantum Entanglement of Flux Qubits via a Resonator},
author = {A. Yu. Smirnov and A. M. Zagoskin},
journal= {arXiv preprint arXiv:cond-mat/0207214},
year = {2007}
}
Comments
Presented on the Workshop on Quantum Device Technology, Clarkson University, May 20-24,2002