Transferring quantum entangled states between multiple single-photon-state qubits and coherent-state qubits in circuit QED

We present a way to transfer maximally- or partially-entangled states of n single-photon-state (SPS) qubits onto coherent-state (CS) qubits, by employing 2n microwave cavities coupled superconducting flux qutrit. The two logic SPS qubit here are represented the vacuum state and single-photon cavity, while CS encoded with coherent cavity. Because using only one qutrit as coupler, circuit architecture is significantly simplified. operation time for does not increase increasing number qubits. When dissipation system negligible, quantum can be transferred in deterministic since no measurement required. Furthermore, higher-energy intermediate level coupler excited during entire thus decoherence from greatly suppressed. As specific example, we numerically demonstrate that high-fidelity Bell achievable within present-day QED technology. Finally, it worthy note when entangled back performing reverse operations. This proposal quite general extended accomplish same task, natural artificial atom couple optical cavities.