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arXiv 2501.04780quant-ph
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利用量子非定域性实现与设备无关的相对论效应确认

Using quantum nonlocality for device-independent confirmation of relativistic effects

Shubhayan Sarkar

备注：
Some problems and implicit assumptions are identified in the work
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AI总结：

针对经典时钟同步易受延迟攻击的问题，提出利用量子非定域性的设备无关认证实现高安全时钟同步，并扩展至设备无关地观测相对论时间膨胀。

摘要：

同步时钟以测量时间是支撑从全球定位系统到并行计算等每项实际通信任务的基本过程。然而，由于现有协议基于发送方与接收方之间的经典通信，它们容易受到简单攻击，这些攻击可能造成信号轻微延迟，进而导致后续操作中的巨大错误。在这项工作中，我们首先解释了一种原则上能在发送方与接收方之间造成任意信号延迟的简单攻击。随后，我们提出了一种克服该问题的方法，即利用近期构思的、基于量子非定域性的设备无关认证思想。因此，时钟可以在不信任设置中任何设备的情况下以高度安全的方式实现同步。接着，我们将该方案扩展，以设备无关的方式观测相对论时间膨胀效应。

英文摘要：

Synchronizing clocks to measure time is a fundamental process underpinning every practical communication task from GPS to parallel computation. However, as the current protocols are based on classical communication between the sender and receiver, they are prone to simple attacks that could cause a slight delay in the signal which would then cause a massive error in further operations. In this work, we first explain a simple attack that in principle can cause an arbitrary delay in the signal between sender and receiver. We then propose a way to overcome this problem by using a recently contrived idea of device-independent certification which utilises quantum nonlocality. Consequently, clocks can be synchronized in a highly secure way without trusting any devices in the setup. We then extend this proposal to observe relativistic time dilation in a device-independent manner.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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