Implementation of a Quantum Conditional Phase Gate for the Quantum Fourier Transform in Circuit QED
YU Long-Bao1,2, XUE Zheng-Yuan2
1Department of Physics and Electronic Engineering, Hefei Normal University, Hefei 230061 2Laboratory of Quantum Information Technology, ICMP and SPTE, South China Normal University, Guangzhou 510006
Implementation of a Quantum Conditional Phase Gate for the Quantum Fourier Transform in Circuit QED
YU Long-Bao1,2, XUE Zheng-Yuan2
1Department of Physics and Electronic Engineering, Hefei Normal University, Hefei 230061 2Laboratory of Quantum Information Technology, ICMP and SPTE, South China Normal University, Guangzhou 510006
It is well known that multiple superconducting charge qubits coupled to a transmission line resonator can be controlled to achieve quantum logic gates between two arbitrary qubits. We propose a scheme to realize a quantum conditional phase gate with a geometric property by circuit electrodynamics, and it is applied naturally to realize the quantum Fourier transform with high fidelity. It is also demonstrated that the application is feasible and considerable under the present experimental technology.
It is well known that multiple superconducting charge qubits coupled to a transmission line resonator can be controlled to achieve quantum logic gates between two arbitrary qubits. We propose a scheme to realize a quantum conditional phase gate with a geometric property by circuit electrodynamics, and it is applied naturally to realize the quantum Fourier transform with high fidelity. It is also demonstrated that the application is feasible and considerable under the present experimental technology.
YU Long-Bao;XUE Zheng-Yuan. Implementation of a Quantum Conditional Phase Gate for the Quantum Fourier Transform in Circuit QED[J]. 中国物理快报, 2010, 27(7): 70305-070305.
YU Long-Bao, XUE Zheng-Yuan. Implementation of a Quantum Conditional Phase Gate for the Quantum Fourier Transform in Circuit QED. Chin. Phys. Lett., 2010, 27(7): 70305-070305.
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2010, Vol. 27 
