布下宇宙信号“监听系统” 暗物质探测新增更精准“量子神器”

Core Insights - The research team from the University of Science and Technology of China has developed the world's first quantum sensing network based on atomic nuclear spins, significantly enhancing the sensitivity for dark matter detection, as published in the journal Nature [1][2] Group 1: Quantum Sensing Technology - The quantum sensors are equipped with two key innovations: storing fleeting signals in a nuclear spin coherence state for nearly a minute, which greatly extends the detection window, and a self-developed quantum amplification technology that enhances weak signals by 100 times [1] - The team has successfully deployed five ultra-sensitive quantum sensors in Hefei and Hangzhou, creating a distributed detection network synchronized by satellite time [2] Group 2: Dark Matter Detection - The research has provided the most stringent limits on dark matter models across a wide range of axion masses, with some precision limits exceeding astronomical observations by 40 times [2] - This breakthrough adds a more precise "quantum tool" to humanity's toolkit for searching dark matter, with potential future enhancements in sensitivity by four orders of magnitude through global networking and space deployment [2]