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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 |
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YU Long-Bao, XUE Zheng-Yuan 2010 Chin. Phys. Lett. 27 070305 |
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Abstract 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.
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03.67.Ac
03.67.Lx
85.25.Cp
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Received: 21 October 2009
Published: 28 June 2010
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| PACS: |
03.67.Ac
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(Quantum algorithms, protocols, and simulations)
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03.67.Lx
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(Quantum computation architectures and implementations)
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85.25.Cp
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(Josephson devices)
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