Quantum network utility: A framework for benchmarking quantum networks

• 成果类型: Article
• 署名作者: Lee, Yuan; Dai, Wenhan; Towsley, Don; Englund, Dirk
• 署名单位: Massachusetts Institute of Technology (MIT); Massachusetts Institute of Technology (MIT); University of Massachusetts System; University of Massachusetts Amherst; Massachusetts Institute of Technology (MIT)
• 刊物名称: PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
• ISSN/ISSBN: 0027-11172
• DOI: 10.1073/pnas.2314103121
• 发表日期: 2024-04-23
• 关键词: remote entanglement; COMMUNICATION; nodes

摘要

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.