单光子量子位置验证的实验论证

IF 5 2区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Quantum Science and Technology Pub Date : 2025-07-31 DOI:10.1088/2058-9565/adf2da

Kirsten Kanneworff, Mio Poortvliet, Dirk Bouwmeester, Rene Allerstorfer, Philip Verduyn Lunel, Florian Speelman, Harry Buhrman, Petr Steindl and Wolfgang Löffler

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引用次数: 0

摘要

地理位置可以作为一方身份验证的良好凭证。这是基于位置的加密的基础，但是如果没有私钥的物理交换，通常无法安全地进行加密。最近有研究表明，通过将量子力学与狭义相对论的光速极限相结合，这可能成为可能：量子位置验证（QPV）。在这里，我们通过实验证明了在分束器上使用双光子Hong-Ou-Mandel干涉的协议，该协议与两个额外的分束器和四个探测器相结合，使协议具有抗损失的弹性。有了这个，我们能够向QPV的实验演示展示第一个结果。

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Towards experimental demonstration of quantum position verification using single photons

The geographical position can be a good credential for authentication of a party. This is the basis of position-based cryptography—but classically this cannot be done securely without physical exchange of a private key. Recently it has been shown that by combining quantum mechanics with the speed-of-light limit of special relativity, this might be possible: quantum position verification (QPV). Here we demonstrate experimentally a protocol that uses two-photon Hong–Ou–Mandel interference at a beamsplitter, which, in combination with two additional beam splitters and four detectors is rendering the protocol resilient to loss. With this, we are able to show first results towards an experimental demonstration of QPV.

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来源期刊

Quantum Science and Technology Materials Science-Materials Science (miscellaneous)

CiteScore

11.20

自引率

3.00%

发文量

133

期刊介绍： Driven by advances in technology and experimental capability, the last decade has seen the emergence of quantum technology: a new praxis for controlling the quantum world. It is now possible to engineer complex, multi-component systems that merge the once distinct fields of quantum optics and condensed matter physics. Quantum Science and Technology is a new multidisciplinary, electronic-only journal, devoted to publishing research of the highest quality and impact covering theoretical and experimental advances in the fundamental science and application of all quantum-enabled technologies.