（来源：中国航空报） 弗吉尼亚理工大学的研究人员由此提出了一个天马行空的设想：机器能否在不发送任何信息的情况下实现信息共享？ 研究人员首先引入了量子纠缠。具体来说，这是一种物理现象，两个粒子（如量子比特）可以在特定情况下形成深度关联，其中一个发生变化，另一个也会 随之改变，不受距离的影响，依赖粒子共享的量子态传递信息，不需要像无线电那样向空间发送信号。 据介绍，这项新框架名为eQMARL（entangled quantum m u l t i - a g e n t r e i n f o r c e m e n t learning，纠缠量子多智能体强化学习），德里厄对此解释 道："我们本质上是开发一套学习机制，利用量子纠缠这一现象，而且我们并不关心具体变化的内容，只需要关注变化发生。" 这种学习方式允许机器不断试错、根据环境反馈进行调整，从而改进自身行为。并且在eQMARL中，每个智能体都会被分配一个纠缠的量子比特，当某个 智能体观察环境、接收感知信息或作出决策时，其内部的量子比特状态便会改变，并经由纠缠现象传递给其他智能体内部的量子比特。 同时，系统只需要知道"发生了变化"，并不需要了解具体改变信息，智 ...

这项研究为表征缺乏个体寻址能力的量子多体系统开辟了一条具有通用潜力的实验路径。它不仅适用于 基础物理研究，未来还有望应用于新型量子材料的表征，以及对日益复杂的量子模拟器的有效验证，从 而推动量子科技的发展。 （文章来源：科技日报） 理解量子多体系统的非平衡动力学是现代物理学的核心前沿。其中的关键在于探测系统内部粒子间的高 阶关联，尤其是量子纠缠。但对于缺乏单粒子独立操控能力的复杂系统的探测，一直是亟待解决的难 题。 此次研究团队开发的"多维关联压印"技术，其核心思想是将一个无法直接测量的复杂多体系统与一个高 度敏感的局域量子探针耦合。多体系统的复杂关联会作为独特的"印记"，"压印"在探针相对容易读取的 时间涨落频谱上。通过解读这些频谱"密码"，便能反推出系统内部的多体关联特性。在实验验证中，研 究团队利用空间分辨率达纳米级的金刚石氮空位色心量子探针，首次成功重构了其周围核自旋环境的三 阶关联。通过分析关联累积量的谱结构，该方法还能够直接可视化量子纠缠的建立过程，为探测纠缠这 一奇特的量子资源提供了新途径。 记者18日从中国科学技术大学获悉，该校教授王亚和北京师范大学副教授王评合作，在量子多体系统探 测上取得重 ...

Core Insights - Investors are increasingly pouring money into quantum technology startups, but they may want to consider established companies like IBM, which has a long history and extensive experience in the field [2] - IBM is focusing on developing a new type of quantum computer that could solve complex mathematical problems beyond the capabilities of classical computers, with the potential to revolutionize fields such as drug design and chemical products [2] Group 1: IBM's Quantum Computing Efforts - IBM has been involved in quantum technology research since the early 2000s, led by physicist Jay Gambetta, who manages a team of 3,000 researchers across six continents [3] - The company has chosen to focus on superconducting qubits, which require cooling to just above absolute zero to function properly, leveraging its expertise in microwave technology [4] - IBM has deployed operational quantum computers in various locations, collaborating with institutions like Moderna and the Cleveland Clinic to develop algorithms for future quantum systems [6][7] Group 2: Market Potential and Competition - The Boston Consulting Group predicts that by 2040, annual revenue from quantum hardware and software suppliers could reach between $90 billion and $170 billion [2] - While many startups claim breakthroughs in quantum technology, they face significant challenges in achieving commercial viability [5] - IBM's approach includes a roadmap for scalable error correction, which is crucial for the reliability of quantum computing, and it believes it has the most transparent technology roadmap in this area [7][8] Group 3: Practical Applications and Future Goals - IBM is working on a modular quantum computer that can perform 100 million quantum gate operations by 2029, aiming to provide practical services for clients like Vanguard [11] - The company has secured $1 billion in quantum service order commitments, indicating strong market interest in its quantum computing capabilities [11] - IBM's CEO, Arvind Krishna, has a technical background, which may help the company compete against more agile startups in the quantum space [11]

Group 1 - The core viewpoint emphasizes that China's path to modernization is deeply rooted in its own civilization rather than merely replicating foreign models, which serves as a unique advantage for its development and inspires other countries to explore development paths suited to their own national conditions [2][4]. - The article discusses the importance of respecting cultural diversity and promoting exchanges among peoples of different nations, suggesting that global civilization initiatives can foster mutual understanding and help build a community with a shared future for humanity [2][4]. - It highlights the historical significance of Cyprus as a bridge for East-West cultural exchanges and its ongoing contributions to deepening Sino-Cypriot and EU-China cultural interactions, which are seen as vital for advancing human civilization [4]. Group 2 - The article draws parallels between ancient Eastern and Western philosophies, noting that philosophers like Heraclitus and Confucius shared similar views on harmony being achieved through the coexistence of diverse elements, reflecting a cross-cultural resonance of thought [3]. - It underscores the concept of "virtue" as a common concern in both Greek and Chinese ethics, focusing on meaningful living, emotional management, and genuine friendship, which further illustrates the interconnectedness of human values across cultures [3][4]. - The promotion of shared values and the idea of seeking common ground while respecting differences is presented as a fundamental principle of the global civilization initiative, showcasing China's commitment to fostering dialogue and cooperation [4].

在材料制备上，研究团队利用自主研发的超纯金刚石生长与纳米精度定点掺杂技术，成功制备出间 距小至5纳米的氮—空位色心对结构。在探测方法上，研究团队创造性地将一对色心制备成一种特殊的 量子纠缠态。这种状态让它们能"无视"来自远端的相同背景噪声，同时协同聚焦并放大近端目标单自旋 的独特信号。该策略成功解决了信号放大与噪声干扰之间长期存在的矛盾，将探测单个自旋的空间分辨 率提升了1.6倍。 研究人员表示，这项成果不仅通过实验验证了量子纠缠在纳米尺度传感中的优势与潜力，也展示了 金刚石量子传感器能够作为强大的纳米磁强计，为在原子层面研究量子材料打开新窗口，将为凝聚态物 理、量子生物学和化学等领域提供革命性研究工具。 （原载于《科技日报》 2025-12-04 06版） 中国科学技术大学教授王亚等与浙江大学海洋精准感知技术全国重点实验室合作，首次实现噪声环 境下纠缠增强的纳米尺度单自旋探测。相关研究成果日前在线发表于国际期刊《自然》。 自旋是电子的一个基本属性。探测单个自旋，不仅能为理解物性提供全新视角，更可以为发展单分 子磁探测技术和推进量子科技奠定坚实基础。然而，由于物质中含有大量自旋，对单个自旋的探测相当 于在喧闹 ...

因具备纳米级的分辨能力和高灵敏的磁探测能力，金刚石氮—空位色心量子传感器一直是实现单自旋探 测的重要技术途径。理论上，量子纠缠是突破单自旋探测瓶颈的可能途径，它能将探测精度逼近量子力 学所允许的极限。研究团队通过材料制备与量子操控两条路径的协同创新，首次成功开发出纠缠增强型 纳米单自旋探测技术，在固态体系中实现了微观磁信号灵敏度与空间分辨率的同步提升，为纳米尺度量 子精密测量技术的持续发展铺平道路。 （文章来源：科技日报） 在材料制备上，研究团队利用自主研发的超纯金刚石生长与纳米精度定点掺杂技术，成功制备出间距小 至5纳米的氮—空位色心对结构。在探测方法上，研究团队创造性地将一对色心制备成一种特殊的量子 纠缠态。这种状态让它们能"无视"来自远端的相同背景噪声，同时协同聚焦并放大近端目标单自旋的独 特信号。该策略成功解决了信号放大与噪声干扰之间长期存在的矛盾，将探测单个自旋的空间分辨率提 升了1.6倍。 研究人员表示，这项成果不仅通过实验验证了量子纠缠在纳米尺度传感中的优势与潜力，也展示了金刚 石量子传感器能够作为强大的纳米磁强计，为在原子层面研究量子材料打开新窗口，将为凝聚态物理、 量子生物学和化学等领域提供 ...

Core Insights - A research team from Princeton University has developed a new type of diamond quantum sensor that enhances magnetic field detection sensitivity by approximately 40 times compared to existing technologies, enabling the observation of previously "invisible" magnetic fluctuations in condensed matter [1][2] Group 1: Technology and Methodology - The new sensor is based on engineered diamond defects, specifically ultra-pure diamonds that are significantly purer than natural diamonds, with only one atom missing in a lattice of billions [1] - The team implanted two nitrogen vacancy centers approximately 10 nanometers apart on the diamond surface, allowing them to interact at the quantum level and form entanglement, which significantly improves sensitivity by extracting highly correlated magnetic signals from background noise [1] - The implantation process involves bombarding the diamond with nitrogen molecules at a speed exceeding 30,000 feet per second, allowing for precise control over the depth and spacing of the nitrogen atoms, which is crucial for achieving quantum entanglement [1] Group 2: Applications and Future Prospects - This breakthrough allows researchers to directly observe previously difficult-to-access magnetic noise and electronic behaviors at the atomic scale, including electron propagation and scattering processes, as well as the evolution of magnetic flux vortices in superconducting materials under special conditions [2] - The new quantum sensor is expected to be used in the study of unconventional superconductors and topological quantum states, providing experimental evidence for the design of next-generation quantum materials [2]

Core Insights - A significant breakthrough in the field of nanoscale quantum precision measurement has been achieved through collaboration between the University of Science and Technology of China and Zhejiang University, marking the first successful detection of entangled enhanced nanoscale single-spin detection in noisy environments [2][5]. Summary by Sections - **Technological Advancements** - The research has led to three major advancements: the successful differentiation and detection of two adjacent "dark" electron spins; an increase in detection sensitivity by 3.4 times at the single sensor level in noisy environments; and the capability to monitor and actively regulate unstable spin signals in real-time [2]. - **Implications for Research** - This breakthrough validates the advantages and immense potential of quantum entanglement in nanoscale sensing, showcasing diamond quantum sensors as powerful nanoscale magnetometers. This development opens new avenues for atomic-level research in quantum materials and provides revolutionary tools for fields such as condensed matter physics, quantum biology, and chemistry [2]. - **Foundation for Future Technologies** - The controllable preparation of nitrogen-vacancy centers in diamonds and the technology for quantum entanglement regulation are critical foundations for achieving room-temperature diamond quantum computing [2].

Core Insights - The research team from the University of Science and Technology of China and Zhejiang University has made significant advancements in the field of quantum precision measurement at the nanoscale, achieving entanglement-enhanced single-spin detection in noisy environments [1][2] - The findings were published in the prestigious journal "Nature," highlighting the importance of this breakthrough for understanding fundamental magnetic properties and advancing quantum technology [1] Group 1: Technological Advancements - The research team has developed a complete process for the autonomous preparation of high-quality diamond quantum sensors, mastering over twenty key steps in the process [2] - A novel entanglement-enhanced nano single-spin detection technology has been successfully developed, improving sensitivity and spatial resolution for microscopic magnetic signal detection [2] Group 2: Key Achievements - The technology has achieved three major advancements: distinguishing and detecting two adjacent "dark" electron spins, enhancing detection sensitivity by 3.4 times in noisy environments, and enabling real-time monitoring and active control of unstable spin signals [2] - The results validate the advantages and potential of quantum entanglement in nanoscale sensing, positioning diamond quantum sensors as powerful tools for research in condensed matter physics, quantum biology, and chemistry [2]

Core Viewpoint - Quantum computers are based on principles such as quantum superposition and entanglement, allowing them to solve complex problems with significant potential, but they are not a replacement for traditional computers [1]. Group 1 - Quantum computers utilize "quantum bits" that can exist in a linear superposition of 0 and 1, enabling them to perform quantum evolution in exponentially large state spaces [1]. - The advantages of quantum computing are highly specialized, making them less efficient and stable than traditional computers for everyday tasks like web browsing and document editing [1]. - Quantum computers are expected to serve as powerful specialized computing tools that complement rather than replace traditional computing systems [1].