研究团队通过发展长寿命囚禁离子量子存储器、高效率离子—光子通信接口及高保真度单光子纠缠协 议，首次实现长寿命量子纠缠，纠缠寿命显著超过纠缠建立所需的时间，成功构建可扩展量子中继的基 本模块，使远距离量子网络成为可能。此外，研究团队基于可扩展量子中继技术，实现两个铷原子间的 远距离高保真纠缠。在此基础上，他们首次将设备无关量子密钥分发的距离突破百公里，较国际此前最 好实验水平提升两个数量级以上，极大推进了该技术的实用化进程。 《 人民日报 》( 2026年02月14日 06 版) 本报合肥电 (记者徐靖)记者从中国科学技术大学获悉：该校潘建伟等人和多位业内专家合作，在可扩展 量子网络研究方面取得重大突破。相关成果发表于国际学术期刊《自然》和《科学》。 量子信息科学的目标是构建高效、安全的量子网络。构建量子网络的基本要素是远距离确定性量子纠缠 分发。但光纤的固有损耗导致量子纠缠的传输效率随距离呈指数级衰减，是构建可扩展量子网络面临的 最大挑战。例如，利用量子中继方案在光纤中进行距离为1000公里的纠缠分发，比直接在光纤中传输， 效率将提升100亿亿倍。然而，以往量子纠缠寿命远远短于产生纠缠所需时间，因此无法实现纠 ...

Core Insights - The research team from the University of Science and Technology of China has made significant breakthroughs in scalable quantum network research, constructing the basic module of a scalable quantum repeater for the first time internationally, making long-distance quantum networks a realistic possibility [1][2] - They achieved high-fidelity entanglement between single atom nodes over long distances and successfully extended the transmission distance of device-independent quantum key distribution beyond 100 kilometers, improving previous international experimental levels by more than two orders of magnitude [2] Group 1 - The ultimate goal of quantum information science is to build efficient and secure quantum networks, with long-distance deterministic quantum entanglement distribution as a fundamental element [1] - The inherent loss in optical fibers leads to an exponential decay in the efficiency of quantum entanglement transmission with distance, posing the greatest challenge in constructing scalable quantum networks [1] - The quantum repeater scheme is an effective solution to address the transmission loss in optical fibers, potentially enhancing the efficiency of entanglement distribution over 1000 kilometers by 10^20 times compared to direct transmission [1] Group 2 - The research team developed long-lived trapped ion quantum memory, high-efficiency ion-photon communication interfaces, and high-fidelity single-photon entanglement protocols, achieving long-lived quantum entanglement that significantly exceeds the time required to establish entanglement [2] - This breakthrough marks a transition from theoretical concepts of fiber-based quantum networks to realistic possibilities, indicating progress towards practical applications of quantum entanglement technology [3]

Core Viewpoint - The research team led by Academician Pan Jianwei from the University of Science and Technology of China has achieved significant breakthroughs in quantum networking, including the first scalable quantum relay module and the ability to distribute device-independent quantum keys over distances exceeding 100 kilometers [1][5][6]. Group 1: Quantum Relay Technology - The ultimate goal of quantum information science is to construct efficient and secure quantum networks, which rely on long-distance deterministic quantum entanglement distribution [4]. - The challenge of signal attenuation in optical fibers has been a major barrier to long-distance quantum entanglement distribution, which the team addressed through the development of "quantum relay" technology [4]. - The team successfully created a basic module for scalable quantum relays, enabling the effective connection of entangled segments over long distances, thus making long-distance quantum networks a feasible reality [4][6]. Group 2: Device-Independent Quantum Key Distribution - The research team made advancements in device-independent quantum key distribution, which is crucial for the security of quantum communication [5]. - Previously, the maximum transmission distance for this technology was only a few hundred meters, but the team has now achieved over 100 kilometers using quantum relay technology [5]. - This breakthrough ensures that even if the quantum devices are completely untrustworthy, the generated keys remain secure, enhancing the overall security of quantum communication systems [5]. Group 3: Future Implications - These technological breakthroughs solidify China's international leadership in quantum technology and lay the groundwork for the future construction of a quantum internet [6]. - Academician Pan Jianwei indicated that with an additional 10 to 15 years of effort, a universal quantum computer could connect all quantum computers into a network, transforming the concept of a quantum internet into reality [6]. - This development would revolutionize the way information is perceived and understood in the material world, providing a revolutionary means to comprehend the universe [6].

Core Insights - The research team led by Academician Pan Jianwei at the University of Science and Technology of China has achieved significant breakthroughs in the field of quantum networks, specifically in scalable quantum relay modules and device-independent quantum key distribution (QKD) over distances exceeding 100 kilometers [1][5]. Group 1: Quantum Relay Technology - The team has successfully implemented a basic module for scalable quantum relays, which addresses the challenge of signal attenuation in optical fibers that limits the distance for quantum entanglement distribution [4]. - The concept of "quantum relay" involves setting up multiple "relay stations" along the long-distance journey of quantum signals to create entanglement between adjacent stations, thereby enabling entanglement distribution over long distances [4]. Group 2: Device-Independent Quantum Key Distribution - The research has also made advancements in device-independent quantum key distribution, which ensures the security of generated keys even if the quantum devices are completely untrustworthy [5]. - Previously, the maximum transmission distance for this technology was only a few hundred meters, but the new breakthrough allows for secure key distribution over distances greater than 100 kilometers [5]. Group 3: Future Implications - These breakthroughs solidify China's international leading position in quantum technology and lay the groundwork for the future construction of a quantum internet [5]. - Academician Pan Jianwei indicated that with continued efforts over the next 10 to 15 years, a universal quantum computer could connect all quantum computers into a network, making the quantum internet a reality and revolutionizing our understanding of the material world [5].

Core Insights - The research team from the University of Science and Technology of China has achieved a significant breakthrough in scalable quantum network research by constructing the basic module of a scalable quantum relay, making long-distance quantum networks a realistic possibility [1][2] - They have successfully established long-lived quantum entanglement between single-atom nodes over long distances and have, for the first time, surpassed the 100-kilometer transmission distance for device-independent quantum key distribution [1][2] Group 1 - The ultimate goal of quantum information science is to build efficient and secure quantum networks, with long-distance deterministic quantum entanglement distribution being a fundamental element [1] - The inherent loss in optical fibers leads to an exponential decay in the efficiency of quantum entanglement transmission with distance, posing the greatest challenge in constructing scalable quantum networks [1] - The quantum relay scheme is an effective solution to address the transmission loss in optical fibers, enabling entanglement distribution over distances of 1,000 kilometers, which could enhance efficiency by 100 billion billion times compared to direct transmission [1] Group 2 - The research team developed long-lived trapped ion quantum memory, high-efficiency ion-photon communication interfaces, and high-fidelity single-photon entanglement protocols, achieving long-lived quantum entanglement that significantly exceeds the time required to establish entanglement [2] - The successful construction of the basic module for scalable quantum relays makes long-distance quantum networks feasible [2] - The breakthrough signifies that fiber-based quantum networks utilizing quantum entanglement are transitioning from theoretical concepts to practical possibilities [2]

Core Viewpoint - Taiyuan University of Technology has announced multiple government procurement intentions for laboratory instruments and equipment, with a total budget of 104 million yuan [1][2]. Procurement Overview - The procurement includes 10 categories of instruments and equipment, such as visible-infrared tunable supercontinuum light sources, time-correlated single-photon counting cameras, and laser scanning confocal microscopes [2][4]. - The expected procurement period is from February to March 2026 [2][7]. Detailed Procurement List - The budget allocation for teaching and research equipment is approximately 82.7 million yuan, aimed at enhancing the university's teaching and research capabilities [4]. - Specific items include: - Weak signal detectors - Multi-wavelength tunable lasers - Infrared single-photon gas leak detection imaging systems - Aerosol jet 3D printers - Cold field electron microscopes - Customized fume hoods - Direct-write lithography machines [4][5]. Quantum Information Science Equipment - The procurement also focuses on quantum information science, including: - Quantum interference measurement and imaging experimental instruments - Quantum communication experimental devices - High-sensitivity quantum precision measurement instruments [6]. Hard Rock Rapid Excavation Equipment - The procurement aims to support the development of intelligent hard rock rapid excavation equipment, including electrical systems and hydraulic systems [9][10]. - The equipment is designed to meet safety standards and enhance automation in mining operations [9][10].

Core Points - The U.S. Senate approved a bill providing billions in funding to federal research institutions, rejecting the Trump administration's proposed budget cuts to research and aerospace sectors [1] - The National Science Foundation will receive $8.75 billion for research in quantum information science, artificial intelligence, and other fields, significantly higher than the White House's proposed 57% budget cut [1] - The funding is expected to support nearly 10,000 new research projects, benefiting over 250,000 researchers, teachers, and students [1] - The bill also allocates funds for the construction of a long-term lunar base, extreme weather monitoring, and future microelectronics and AI technology development [1] - Republican Senator Rand Paul criticized the bill as a waste of public funds and lacking sufficient oversight [1]

Core Points - The U.S. Senate approved a bill providing billions in funding to federal research institutions, rejecting the Trump administration's proposed significant budget cuts to research and aerospace sectors [2] - The National Science Foundation (NSF) will receive $8.75 billion for research in quantum information science, artificial intelligence, and other fields, significantly higher than the proposed 57% budget cut by the White House [2] - The Senate rejected a proposed $6 billion cut to NASA's budget, approving approximately $24.44 billion instead, while also dismissing plans to terminate several research and exploration missions [2] Funding Allocations - The bill supports nearly 10,000 new research projects, benefiting over 250,000 researchers, educators, and students [2] - Funding is allocated for the construction of a long-term lunar base, extreme weather monitoring, and future microelectronics and AI technology development [2]

Core Points - The U.S. Senate passed a bill providing billions in funding to federal research institutions, rejecting the Trump administration's proposed budget cuts to research and aerospace sectors [1] - The National Science Foundation (NSF) will receive $8.75 billion for research in quantum information science, artificial intelligence, and other fields, significantly higher than the proposed 57% budget cut by the White House [1] - The bill supports nearly 10,000 new research projects, benefiting over 250,000 researchers, educators, and students [1] - In the aerospace sector, the Senate rejected a proposed $6 billion cut to NASA's budget, approving approximately $24.44 billion instead, while also dismissing plans to terminate several research and exploration missions [1] - The bipartisan vote reflects Congress's commitment to continue investing in science, according to Senate Commerce Committee Chairwoman Cantwell [1] - The bill also allocates funding for the construction of a long-term lunar outpost, extreme weather monitoring, and future microelectronics and artificial intelligence technology development [2]

Core Viewpoint - Quantum Design has completed the acquisition of the NanoScience division of Oxford Instruments, marking a strategic alliance between two pioneers in low-temperature technology and establishing a comprehensive service system in low-temperature physics, materials science, and microscopy technology [1]. Group 1: Acquisition Details - The acquisition was announced on June 10, 2025, with Quantum Design agreeing to pay £60 million in cash for the NanoScience business [1]. - This acquisition integrates advanced technologies in ultra-low temperature and high magnetic field environments, aiming to provide comprehensive and high-quality experimental solutions for global research teams [2]. Group 2: Product and Service Offerings - The resource integration will enable the provision of a full range of products and services, including dilution refrigerators and low-temperature thermostats critical for quantum information science, integrated magnetic field and temperature automatic control systems for material characterization, high-field superconducting magnets, and a complete series of optical low-temperature thermostats [2]. - Additionally, a global sales and customer support system will be established to enhance service delivery [2].