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    One-step transfer or exchange of arbitrary multipartite quantum states with a single-qubit coupler

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    Yang-quantum_states2015.pdf (640.7Kb)
    Issue Date
    2015-08-18
    Author
    Yang, Chui-Ping
    Su, Qi-Ping
    Zheng, Shi-Biao
    Han, Siyuan
    Publisher
    Elsevier
    Type
    Article
    Article Version
    Scholarly/refereed, publisher version
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    Abstract
    The transfer or exchange of multipartite quantum states is critical to the realization of large-scale quantum information processing and quantum communication. In thiswork,we demonstrate that by using a single quantum two-level system—a qubit—as a coupler, arbitrary multipartite quantum states (either entangled or separable) can be transferred or exchanged simultaneously between two sets of qubits. During the entire process, the coupler remains unexcited minimizing the effect of coupler decoherence on the process. This feature allows one to use qubits with rapid frequency tunability and a large range of frequency tuning, such as phase qubits, as couplers. Our findings offer the potential to significantly reduce the resources needed to construct and operate large-scale quantum information networks consisting of many multiqubit registers, memory cells, and processing units.
    Description
    This is the published version. Copyright 2015 Elsevier
    URI
    http://hdl.handle.net/1808/18697
    DOI
    https://doi.org/10.1103/PhysRevB.92.054509
    Collections
    • Physics & Astronomy Scholarly Works [1713]
    Citation
    Yang, Chui-Ping, Qi-Ping Su, Shi-Biao Zheng, and Siyuan Han. "One-step Transfer or Exchange of Arbitrary Multipartite Quantum States with a Single-qubit Coupler." Phys. Rev. B Physical Review B 92.5 (2015): n. pag. http://dx.doi.org/10.1103/PhysRevB.92.054509

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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