近日，北京邮电大学王铁军团队报道了受控量子控制非门隐形传态的设备独立验证。相关论文发表在2025年12月15日出版的《物理评论A》杂志上。

受控量子门隐形传态使分布式网络中控制器可调控的量子门传输成为可能。然而现有方案面临安全挑战，因为无论是利用真正三方纠缠态还是不安全的经典-量子混合资源，均能实现高标准的性能指标（如保真度或控制能力）。

研究组提出一种在黑盒场景下利用真正三方非局域性进行设备无关的受控量子门隐形传态验证方案。在量子受控非门隐形传态实验中，基于斯维特利奇不等式的设备无关验证方案达到了最大不等式违例值，其性能优于传统克劳泽-霍恩-希莫尼-霍尔特型验证方案。重要的是，研究组在窃听退极化信道中建立了斯维特利奇不等式违例程度与控制器有效控制能力之间的直接关联——最大不等式违例值恰好对应最优有效控制能力。该研究不仅弥补了受控量子门隐形传态协议在安全验证方面的关键缺陷，同时凸显了多方非局域性在量子信息处理中的基础性作用。

附：英文原文

Title: Device-independent verification of controlled quantum controlled-not-gate teleportation

Author: Yi-Ning Li, Neng-Fei Gong, Ru-Qing Zhang, Jing-Wei Wen, Tie-Jun Wang

Issue&Volume: 2025/12/15

Abstract: Controlled quantum gate teleportation (CQGT) enables controller-regulated quantum gate transmission in distributed networks. The current CQGT scheme faces security challenges as both genuine tripartite entanglement and insecure classical-quantum hybrid resources can achieve high standard metrics (fidelity or control power). In this paper, we propose a device-independent (DI) CQGT verification scheme using genuine tripartite nonlocality in black-box scenarios. In the quantum cnot gate teleportation, our DI verification scheme based on Svetlichny inequality achieved the maximum inequality violation, which is superior to the traditional Clauser-Horne-Shimony-Holt (CHSH) type scheme. It is crucial that we establish a direct relationship between Svetlichny inequality violation and the effective control power (ECP) of the controller in eavesdropping depolarization channels, where ECP corresponds to the maximum inequality violation. This work addresses critical security verification gaps in CQGT protocols while highlighting the fundamental role of multipartite nonlocality in quantum information processing.

DOI: 10.1103/g2r8-q6m5

Source: https://journals.aps.org/pra/abstract/10.1103/g2r8-q6m5