1205.4873 (Peng-Bo Li et al.)

Engineering two-mode entangled states between two superconducting
resonators by dissipation    [PDF]

Peng-Bo Li, Shao-Yan Gao, Fu-Li Li

We present an experimental feasible scheme to synthesize two-mode continuous-variable entangled states of two superconducting resonators that are interconnected by two gap-tunable superconducting qubits. We show that, with each artificial atom suitably driven by a bichromatic microwave field to induce sidebands in the qubit-resonator coupling, the stationary state of the photon fields in the two resonators can be cooled and steered into a two-mode squeezed vacuum state via a dissipative quantum dynamical process, while the superconducting qubits remain in their ground states. In this scheme the qubit decay plays a positive role and can help drive the system to the target state, which thus converts a detrimental source of noise into a resource.

View original: http://arxiv.org/abs/1205.4873