We present an efficient scheme to quickly generate three-qubit Greenberger-Horne-Zeilinger (GHZ) states by using three superconducting qubits (SQs) separated by two coplanar waveguide resonators (CPWRs) capacitively. The scheme is based on quantum Zeno dynamics and the approach of transitionless quantum driving to construct shortcuts to adiabatic passage. In order to highlight the advantages, we compare the present scheme with the traditional one with adiabatic passage. The comparison result shows the shortcut scheme is closely related to the adiabatic scheme but is better than it. Moreover, we discuss the influence of various decoherences with numerical simulation. The result proves that the present scheme is less sensitive to the energy relaxation, the decay of CPWRs and the deviations of the experimental parameters the same as the adiabatic passage. However, the shortcut scheme is effective and robust against the dephasing of SQs in comparison with the adiabatic scheme.
机构:
School of Physics and Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and TechnologySchool of Physics and Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology
司留刚
杨晓雪
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机构:
School of Physics and Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and TechnologySchool of Physics and Wuhan National Laboratory for Optoelectronics,Huazhong University of Science and Technology