Fast and high-fidelity generation of photonic Greenberger-Horne-Zeilinger states in circuit QED |
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Authors: | Jingwei Chen Guan-Hao Feng Hong-Hao Zhang L F Wei |
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Institution: | 1.School of Physics, Sun Yat-sen University, Guangzhou 510275, China;2.Photonics Laboratory and Institute of Functional Materials, College of Science, Donghua University, Shanghai 201620, China;3.Information Quantum Technology Laboratory, School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China |
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Abstract: | A fast scheme to generate Greenberger-Horne-Zeilinger states between different cavities in circuit QED systems is proposed. To implement this scheme, we design a feasible experimental device with three qubits and three cavities. In this device, all the couplings between qubit and qubit, cavity and qubit are tunable and are independent with frequencies, and thus the shortcut to adiabaticity technique can be directly applied in our scheme. It is demonstrated that the GHZ state can be generated rapidly with high fidelity in our scheme. |
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Keywords: | GHZ states shortcut to adiabaticity quantum state engineering circuit QED |
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