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Quantum network utility: A framework for benchmarking quantum networks

Author

Listed:
  • Yuan Lee

    (b Research Laboratory of Electronics , Massachusetts Institute of Technology , Cambridge , MA 02139)

  • Wenhan Dai

    (d Quantum Photonics Laboratory , Massachusetts Institute of Technology , Cambridge , MA 02139)

  • Don Towsley

    (c College of Information and Computer Sciences , University of Massachusetts , Amherst , MA 01003)

  • Dirk Englund

    (d Quantum Photonics Laboratory , Massachusetts Institute of Technology , Cambridge , MA 02139)

Abstract

The central aim of quantum networks is to facilitate user connectivity via quantum channels, but there is an open need for benchmarking metrics to compare diverse quantum networks. Here, we propose a general framework for quantifying the performance of a quantum network by estimating the value created by connecting users through quantum channels. In this framework, we define the quantum network utility metric U QN to capture the social and economic value of quantum networks. The proposed framework accommodates a variety of applications from secure communications to distributed sensing. As a case study, we investigate the example of distributed quantum computing in detail. We determine the scaling laws of quantum network utility, which suggest that distributed edge quantum computing has more potential for success than its classical equivalent. We believe the proposed utility-based framework will serve as a foundation for guiding and assessing the development of quantum network technologies and designs.

Suggested Citation

  • Yuan Lee & Wenhan Dai & Don Towsley & Dirk Englund, 2024. "Quantum network utility: A framework for benchmarking quantum networks," Proceedings of the National Academy of Sciences, Proceedings of the National Academy of Sciences, vol. 121(17), pages 2314103121-, April.
    • Handle: RePEc:nas:journl:v:121:y:2024:p:e2314103121
    DOI: 10.1073/pnas.2314103121
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