暗物质探测新增更精准“量子神器”

Core Viewpoint - 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 and providing a new pathway to unravel this cosmic mystery [1][2]. Group 1: Quantum Sensing Technology - The team has innovatively equipped quantum sensors with two key enhancements: storing fleeting signals in a nuclear spin coherence state for nearly a minute, which greatly extends the detection window [1] - They also developed a quantum amplification technology that increases weak signals by 100 times, making it easier to detect subtle interactions [1]. Group 2: Dark Matter Detection - The research team deployed five ultra-sensitive quantum sensors in Hefei and Hangzhou, synchronizing them via satellite to create a distributed detection network [2] - After two months of observation, the team established the most stringent limits on dark matter models across a wide range of axion masses, achieving precision 40 times greater than results obtained from supernova observations [2]. Group 3: Future Implications - 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].