潘建伟物理学家及其团队使用单原子在100公里距离上演示了设备独立量子密钥分发，这有助于弥合实验室实验与实际应用之间的差距。该突破通过纠缠原子的量子力学行为增强了安全性，即使设备有缺陷或被篡改也能保护量子通信系统免受现实世界漏洞的影响。
中国科学技术大学的研究人员在最新研究中，使用单个光子在原子之间创建量子链接。通过比较两端原子的状态，团队生成了相同的0和1字符串——用于加密的共享密钥。这种方法称为设备独立量子密钥分发（DI-QKD），其独特之处在于即使设备有缺陷或被篡改，也能保持安全。
DI-QKD的安全性源于纠缠原子的量子力学行为，这长期以来一直是量子通信系统的挑战。研究人员表示，此前DI-QKD仅在实验室短距离内演示过，他们的研究有助于“弥合原理验证实验与实际应用之间的差距”。
这项成就标志着量子通信从理论向实用迈进的一步，可能提升国家安全领域的加密技术。关键词包括中国、量子密钥分发（QKD）和潘建伟，该实验于2026年2月6日发布。
Researchers have harnessed quantum entanglement to link atoms across space, achieving unprecedented accuracy in measuring physical quantities. By separating entangled atomic clouds, the team improved the detection of electromagnetic fields. This breakthrough could refine atomic clocks and gravity sensors.
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Qunnect, a Brooklyn-based company, has created technology to share quantum-entangled photons for secure communication networks. The firm recently achieved entanglement swapping over 17.6 kilometers of fiber-optic cables between Brooklyn and Manhattan. This advancement supports the development of an unhackable quantum internet.
Researchers at TU Wien have developed a quantum system using ultracold rubidium atoms that allows energy and mass to flow with perfect efficiency, defying usual resistance. Confined to a single line, the atoms collide endlessly without slowing down, mimicking a Newton's cradle. The discovery, published in Science, highlights a novel form of transport in quantum gases.
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A team led by Holger Hofmann at Hiroshima University reported in May that a modified double-slit experiment showed single photons behaving as if in two places at once, potentially undermining the multiverse concept. The findings, which suggest the wave function guides real particle paths, have faced significant skepticism from other physicists. Despite pushback, the researchers stand by their results and continue their work.