Effect of quantum measurement errors on witnessing network topology

doi:10.1088/1674-1056/ade3af

中国物理B ›› 2025, Vol. 34 ›› Issue (9): 90302-090302.doi: 10.1088/1674-1056/ade3af

所属专题： SPECIAL TOPIC — Quantum communication and quantum network

Effect of quantum measurement errors on witnessing network topology

Shu-Yuan Yang(杨舒媛)¹, Kan He(贺衎)^2,†, and Ming-Xing Luo(罗明星)^3,‡

1 School of Mathematics, North University of China, Taiyuan 030051, China;
2 College of Mathematics, Taiyuan University of Technology, Taiyuan 030024, China;
3 School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China

收稿日期:2025-05-15 修回日期:2025-06-10 接受日期:2025-06-12 出版日期:2025-08-21 发布日期:2025-09-03
通讯作者: Kan He, Ming-Xing Luo E-mail:hekan@tyut.edu.cn,hekanquantum@163.com;mxluo@swjtu.edu.cn
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12271394 and 62172341) and the Sichuan Natural Science Foundation (Grant Nos. 2024NSFSC1365 and 2024NSFSC1375).

Effect of quantum measurement errors on witnessing network topology

Shu-Yuan Yang(杨舒媛)¹, Kan He(贺衎)^2,†, and Ming-Xing Luo(罗明星)^3,‡

1 School of Mathematics, North University of China, Taiyuan 030051, China;
2 College of Mathematics, Taiyuan University of Technology, Taiyuan 030024, China;
3 School of Information Science and Technology, Southwest Jiaotong University, Chengdu 610031, China

Received:2025-05-15 Revised:2025-06-10 Accepted:2025-06-12 Online:2025-08-21 Published:2025-09-03
Contact: Kan He, Ming-Xing Luo E-mail:hekan@tyut.edu.cn,hekanquantum@163.com;mxluo@swjtu.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 12271394 and 62172341) and the Sichuan Natural Science Foundation (Grant Nos. 2024NSFSC1365 and 2024NSFSC1375).

摘要/Abstract

摘要： The fragility and stochastic behavior of quantum sources make it crucial to witness the topology of quantum networks. Most previous theoretical methods are based on perfect assumptions of quantum measurements. In this work, we propose a method to witness network topology under imperfect assumptions of quantum measurements. We show that the discrimination between star and triangle networks depends on the specific error tolerances of local measurements. This extends recent results for witnessing the triangle network [Phys. Rev. Lett. 132 240801 (2024)].

关键词: quantum network, quantum measurement, error

Abstract: The fragility and stochastic behavior of quantum sources make it crucial to witness the topology of quantum networks. Most previous theoretical methods are based on perfect assumptions of quantum measurements. In this work, we propose a method to witness network topology under imperfect assumptions of quantum measurements. We show that the discrimination between star and triangle networks depends on the specific error tolerances of local measurements. This extends recent results for witnessing the triangle network [Phys. Rev. Lett. 132 240801 (2024)].

Key words: quantum network, quantum measurement, error

中图分类号: (Quantum information)

03.67.-a

03.67.Hk (Quantum communication)

Shu-Yuan Yang(杨舒媛), Kan He(贺衎), and Ming-Xing Luo(罗明星). Effect of quantum measurement errors on witnessing network topology[J]. 中国物理B, 2025, 34(9): 90302-090302.

Shu-Yuan Yang(杨舒媛), Kan He(贺衎), and Ming-Xing Luo(罗明星). Effect of quantum measurement errors on witnessing network topology[J]. Chin. Phys. B, 2025, 34(9): 90302-090302.

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Effect of quantum measurement errors on witnessing network topology

Effect of quantum measurement errors on witnessing network topology

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