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Universal Quantum Cloning Machine in Circuit Quantum Electrodynamics |
| LV Dan-Dan1,2, LU Hong2, YU Ya-Fei1, FENG Xun-Li1,3, ZHANG Zhi-Ming1,3 |
| 1Laboratory of Photonic Information Technology, SIPSE and LQIT, South China Normal University, Guangzhou 5100062School of Science, Foshan University, Foshan 5280003Centre for Quantum Technologies and Department of Physics, National University of Singapore, 117543, Singapore |
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LV Dan-Dan, LU Hong, YU Ya-Fei et al 2010 Chin. Phys. Lett. 27 020302 |
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Abstract We propose a scheme for realizing the 1→2 universal quantum cloning machine (UQCM) with superconducting quantum interference device (SQUID) qubits in circuit quantum electrodynamics (circuit QED). In this scheme, in order to implement UQCM, we only need phase shift gate operation on SQUID qubits and the Raman transitions. The cavity number we need is only one. Thus our scheme is simple and has advantages in the experimental realization. Furthermore, both the cavity and the SQUID qubits are virtually excited, so the decoherence can be neglected.
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| Keywords:
03.67.Lx
42.50.Dv
42.50.Pq
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Received: 01 September 2009
Published: 08 February 2010
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| PACS: |
03.67.Lx
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(Quantum computation architectures and implementations)
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42.50.Dv
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(Quantum state engineering and measurements)
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42.50.Pq
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(Cavity quantum electrodynamics; micromasers)
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