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Implementing two optimal economical quantum cloning with superconducting quantum interference devices in a cavity

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Abstract

We propose a unified scheme to implement the optimal 1 → 3 economical phase-covariant quantum cloning and optimal 1 → 3 economical real state cloning with superconducting quantum interference devices (SQUIDs) in a cavity. During this process, no transfer of quantum information between the SQUIDs and cavity is required. The cavity field is only virtually excited. The scheme is insensitive to cavity decay. Therefore, the scheme can be experimentally realized in the range of current cavity QED techniques.

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Authors and Affiliations

  1. School of Physics & Material Science, Anhui University, Hefei, 230039, China

    Liu Ye, GuiYu Hu & Ai**a Li

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  1. Liu Ye
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  2. GuiYu Hu
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  3. Ai**a Li
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Correspondence to Liu Ye.

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Ye, L., Hu, G. & Li, A. Implementing two optimal economical quantum cloning with superconducting quantum interference devices in a cavity. Sci. China Phys. Mech. Astron. 54, 115–120 (2011). https://doi.org/10.1007/s11433-010-4116-9

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  • DOI: https://doi.org/10.1007/s11433-010-4116-9

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