Scalable quantum computing in decoherence-free subspaces with Cooper-pair box qubits |
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Authors: | Zhi-Bo Feng Hong-Ling Wang Hongpei Han Run-Ying Yan |
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Institution: | Electric and Information Engineering College, Xuchang University, Xuchang 461000, China |
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Abstract: | We theoretically propose a feasible scheme to perform quantum computing in decoherence-free subspaces (DFSs) with Cooper-pair box (CPB) qubits arrayed in a circuit QED architecture. Based on the cavity-bus assisted interaction, the selective and controllable interqubit couplings occur only by adjusting the individual gate pulses, by which we obtain the scalable DFS-encoded universal quantum gates to resist certain collective noises. Further analysis shows the protocol may implement the scalable fault-tolerant quantum computing with current experimental means. |
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Keywords: | 03 67 Lx 03 67 Pp 74 81 Fa 85 25 Cp |
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