Core Viewpoint - The article highlights the ongoing research at the Jinping Underground Laboratory, focusing on the exploration of dark matter and the advancements in the facility that enhance its capabilities for scientific experiments [1][4]. Group 1: Facility Overview - The Jinping Underground Laboratory is located 2400 meters underground, making it one of the world's most "pure" deep underground laboratories with cosmic ray flux only one hundred millionth of that at the surface [3][4]. - The laboratory has undergone significant upgrades, transforming it into a "finely decorated" facility, enhancing its operational capabilities since its initial launch [3][4]. - The facility is equipped with a new ventilation system that can deliver 45,000 cubic meters of fresh air per hour, ensuring a comfortable environment for researchers [4]. Group 2: Research Activities - The laboratory supports various research teams, including the CDEX and PandaX groups, which are engaged in dark matter detection experiments, with ongoing upgrades to their detection equipment [6][8]. - The CDEX team has achieved a significant milestone by completing the first liquid nitrogen filling necessary for dark matter experiments, while the PandaX team is working on upgrading their detector from 4 tons to 20 tons to increase the chances of capturing dark matter [6][8]. - The laboratory is also home to other research initiatives, such as nuclear astrophysics experiments, showcasing a diverse range of scientific inquiries being conducted [9]. Group 3: Operational Support - A dedicated team of over 50 operational staff is responsible for the maintenance and inspection of critical equipment, ensuring the smooth operation of the laboratory during the holiday season [6][9]. - The operational team collaborates with various research groups to coordinate resources and maintain the functionality of essential systems, highlighting the importance of support in achieving scientific goals [6][9].

记者从中国科学技术大学获悉：该校自旋磁共振实验室彭新华教授和江敏教授团队在《自然》杂志发表 最新研究成果，他们革新核自旋量子精密测量技术，成功搭建国际首个基于原子核自旋的量子传感网 络，让暗物质探测灵敏度实现质的飞跃。 研究人员表示，这一突破意味着，人类搜寻暗物质的"工具库"中，又新增了一款更精准的量子"捕手"。 本次研究不仅为暗物质探测开辟了新路径，其网络化、分布式探测思路，未来还可与引力波天文台协 同，用于搜寻更多宇宙奥秘。（记者李俊杰） ...

本文转自【人民日报】； 记者从中国科学技术大学获悉：该校自旋磁共振实验室彭新华教授和江敏教授团队在《自然》杂志发表 最新研究成果，他们革新核自旋量子精密测量技术，成功搭建国际首个基于原子核自旋的量子传感网 络，让暗物质探测灵敏度实现质的飞跃。 研究人员表示，这一突破意味着，人类搜寻暗物质的"工具库"中，又新增了一款更精准的量子"捕手"。 本次研究不仅为暗物质探测开辟了新路径，其网络化、分布式探测思路，未来还可与引力波天文台协 同，用于搜寻更多宇宙奥秘。 原标题：量子"捕手"为寻找暗物质提供新工具 ...

Core Insights - A Chinese research team successfully observed the Migdal effect in neutron collisions, marking a significant milestone in dark matter detection, as reported in the journal Nature on January 15, 2026 [1][2][3] Group 1: Research and Development - The research team, led by the University of Chinese Academy of Sciences and involving multiple universities, developed a highly sensitive gas pixel detector, likened to an "atomic-level camera" [3][4] - The detector was initially designed for X-ray polarization detection but was adapted for observing the Migdal effect, which is crucial for detecting light dark matter [6][7] - The team conducted over 150 hours of experiments, capturing more than one million collision events, ultimately confirming six images that aligned with theoretical predictions [4][10] Group 2: Collaboration and Innovation - The project exemplified a model of "organized free exploration," allowing researchers from various institutions to collaborate effectively while pursuing their scientific interests [7][8] - The collaboration included contributions from different universities, focusing on various aspects such as software algorithms, data analysis, and experimental equipment [7][8] - The initiative also involved a talent development program, encouraging students to engage deeply in research from an early stage [7][8] Group 3: Challenges and Perseverance - The team faced numerous challenges, including harsh working conditions and technical difficulties during experiments, which required resilience and adaptability [3][4][10] - Despite setbacks, such as equipment failures and missed observational opportunities, the team maintained a positive outlook, viewing challenges as part of the scientific process [9][10] - The collaborative spirit and shared enthusiasm for discovery among team members fostered a creative environment, leading to innovative solutions and advancements in their research [9][10]

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]

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 [1][3] - Dark matter, which constitutes approximately 26.8% of the universe, interacts through gravity but not electromagnetically, making it challenging to detect [1] - The team has established a distributed detection network using five ultra-sensitive quantum sensors, achieving detection precision that surpasses astronomical observations by 40 times in certain mass ranges of axions, a leading candidate for dark matter [3] Group 1 - The quantum sensors are equipped with advanced features that allow for the storage of fleeting signals in a nuclear spin coherence state for nearly a minute, greatly extending the detection window [1] - The team has developed a self-research quantum amplification technology that enhances weak signals by a factor of 100, making it easier to detect subtle interactions [1] - The breakthrough adds a new, more precise tool to humanity's arsenal for searching for dark matter, with potential future enhancements in sensitivity through global networking and space deployment [3] Group 2 - The sensors are deployed in Hefei and Hangzhou, synchronized via satellite for precise timing, forming a distributed detection network [3] - After two months of continuous observation, the team has provided the strictest constraints on dark matter models across a wide range of axion masses [3] - Future collaborations with gravitational wave observatories could further increase detection sensitivity by four orders of magnitude [3]

Group 1: Space Industry Developments - China Aerospace Science and Technology Corporation plans to promote new fields such as space tourism, space digital infrastructure, space resource development, and space traffic management during the "14th Five-Year Plan" period [1] - The company aims to accelerate the development of suborbital and orbital space tourism vehicles, complete relevant flight validations, and establish a comprehensive space tourism operation system [1] - Domestic commercial space companies like Xinghe Power, Blue Arrow Aerospace, and CAS Space have expressed plans related to space tourism, indicating a strong expectation for the sector's growth [1] Group 2: Commercial Space Policy and Standards - The Shanghai conference on commercial aerospace announced the release of several key documents, including the "14th Five-Year Plan" vision report for China's commercial aerospace industry and a standard system for commercial spacecraft and applications [2][3] - The National Space Administration emphasizes the need for innovation-driven, collaborative, and safe development to enhance the core competitiveness of the industry chain and optimize the policy environment for commercial space development [3] Group 3: Gold Market Insights - The World Gold Council's report predicts that gold jewelry consumption in China may see a quarter-on-quarter rebound in Q1 2026, supported by seasonal purchasing during the Spring Festival [4] - The global gold demand is expected to reach a record high of 5002 tons in 2025, driven by significant geopolitical and economic uncertainties, with investment demand reaching 2175 tons [6] - The report also highlights that there is still substantial room for growth in gold ETF holdings, particularly in North America and Asia, where demand is just beginning to scale up [8]

Core Viewpoint - A Chinese research team has significantly improved the detection precision of dark matter in the universe by constructing a quantum detection network located in Hefei and Hangzhou, providing a new pathway to unravel this cosmic mystery. The results were published in the international academic journal "Nature" on January 29 [1]. Group 1 - Ordinary matter, including stars and planets, constitutes only 4.9% of the total mass of the universe, while dark matter accounts for 26.8%, acting as an "invisible neighbor" that influences galaxy motion through gravity but does not interact electromagnetically with ordinary matter [2]. - The quantum detection network consists of five ultra-sensitive quantum sensors located in Hefei and Hangzhou, synchronized through satellite time to form a distributed cosmic signal "listening network" [4]. - The research team has enhanced the captured weak signals by a factor of 100 using self-developed quantum amplification technology, achieving a new level of detection sensitivity through advanced network signal identification techniques [4]. Group 2 - This research opens a new pathway for dark matter detection, and the networked, distributed detection approach may also be applied to search for other cosmic mysteries in the future [4]. - The research team plans to expand the quantum detection network further and enhance its precision through global networking and space deployment, which will significantly improve detection sensitivity and continue to unveil the mysteries of dark matter [4].

Core Insights - A Chinese research team has significantly improved the detection precision of dark matter in the universe through the establishment of a quantum detection network located in Hefei and Hangzhou, providing a new pathway to unravel this cosmic mystery [1][3]. Group 1: Dark Matter Significance - Ordinary matter, including stars and planets, constitutes only 4.9% of the universe's total mass, while dark matter accounts for 26.8%, acting as an "invisible neighbor" that influences galaxy movements through gravitational effects [3]. Group 2: Quantum Detection Network - The quantum detection network consists of five ultra-sensitive quantum sensors located in Hefei and Hangzhou, synchronized via satellite time to form a distributed cosmic signal "listening network" [5]. - The research team has developed quantum amplification technology that enhances captured weak signals by a factor of 100, combined with advanced network signal identification techniques, achieving a new level of detection sensitivity [5]. Group 3: Future Plans - The research team plans to expand the quantum detection network further and enhance its precision through global networking and space deployment, aiming to significantly improve detection sensitivity and continue unveiling the mysteries of dark matter [5].

Core Insights - The research team from the University of Chinese Academy of Sciences, in collaboration with several universities, has directly observed the Migdal effect, a phenomenon predicted by quantum mechanics, which provides crucial support for breakthroughs in light dark matter detection [3]. Group 1: Migdal Effect - The Migdal effect, predicted in 1939 by Soviet scientist Migdal, describes how energy is transferred from a recoiling atomic nucleus to outer electrons during collisions with neutral particles [3]. - For over 80 years since the theoretical prediction, the existence of the Migdal effect in neutral particle collision processes had not been confirmed, leading to skepticism regarding dark matter detection experiments relying on this effect [3]. Group 2: Research Methodology - The research team developed a highly sensitive detection device combining a "micro-structured gas detector" and a "pixel readout chip," functioning like a "camera" that captures the process of electrons being released during single atomic movements [4]. - Using a compact deuterium-deuterium fusion reaction neutron source, the device can distinguish the unique tracks formed by nuclear recoil and Migdal electrons, successfully confirming the Migdal effect for the first time [4]. Group 3: Future Plans - The research team plans to further optimize the performance of the detector and expand observations of the Migdal effect across different elements, aiming to provide data support for the detection of lighter dark matter particles [4].