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    A Continuous Variable Quantum Switch

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    CV_Quantum_Switch_or_Router-1.pdf
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    Author
    Tillman, Ian
    Vasantam, Thirupathaiah
    Seshadreesan, Kaushik P.
    Affiliation
    University of Arizona, College of Optical Sciences
    Issue Date
    2022-09
    Keywords
    entanglement distribution
    maximum weight scheduling
    quantum continuous variables
    quantum repeater
    quantum switch
    
    Metadata
    Show full item record
    Publisher
    IEEE
    Citation
    Tillman, I., Vasantam, T., & Seshadreesan, K. P. (2022). A Continuous Variable Quantum Switch. Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022, 365–371.
    Journal
    Proceedings - 2022 IEEE International Conference on Quantum Computing and Engineering, QCE 2022
    Rights
    © 2022 IEEE.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    The continuous quadratures of a single mode of the light field present a promising avenue to encode quantum information. By virtue of the infinite dimensionality of the associated Hilbert space, quantum states of these continuous variables (CV) can enable higher communication rates compared to single photon-based qubit encodings. Quantum repeater protocols that are essential to extend the range of quantum communications at enhanced rates over direct transmission have also been recently proposed for CV quantum encodings. Here we present a quantum repeating switch for CV quantum encodings that caters to multiple communication flows. The architecture of the switch is based on quantum light sources, detectors, memories, and switching fabric, and the routing protocol is based on a Max-Weight scheduling policy that is throughput optimal. We present numerical results on an achievable bipartite entanglement request rate region for multiple CV entanglement flows that can be stably supported through the switch. We elucidate our results with the help of exemplary 3-flow networks.
    Note
    Immediate access
    DOI
    10.1109/qce53715.2022.00057
    Version
    Final accepted manuscript
    ae974a485f413a2113503eed53cd6c53
    10.1109/qce53715.2022.00057
    Scopus Count
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