【环球网科技综合报道】12月12日消息，美国量子通信技术公司Quantum Corridor近日宣布，该公司与 东芝国际公司及合作伙伴携手，成功在伊利诺伊州与印第安纳州之间的商用城域光纤网络上完成跨州量 子密钥分发演示，实现了两个州之间的量子安全通信，这也是美国商业运营商中首次达成此类突破。 此次量子密钥分发（QKD）实验依托现有商用光纤基础设施展开，通信链路从芝加哥ORD 10数据中心 （350 Cermak地址）延伸至印第安纳州汉蒙德市的Digital Crossroad数据中心（100 Digital Crossroad Drive地址），链路长度达21.8公里。实验重点验证了东芝多路复用QKD技术与Ciena高速相干传输系统 的协同应用，成功实现了密钥生成与高吞吐量加密。 来源：环球网 量子密钥分发的核心原理是通过量子物理与经典通信的相互作用生成加密密钥：单光子的量子态构建起 相关随机性，再借助经典通信对这种随机性进行协调与验证，最终使通信两端获得相同的秘密密钥。此 次采用的东芝量子密钥分发系统符合ETSI标准，网络安全密钥速率平均达到1500kbps，远超常规现场应 用预期。这些量子生成的密钥可无缝 ...

Core Insights - The quantum communication industry is characterized by a focus on integrating various technologies to enhance competitiveness, with Guodun Quantum as the core player leading in multiple sectors including quantum communication, computing, and precision measurement [1][2]. Company Overview - Guodun Quantum (688027.SH) is the only listed company covering the entire quantum communication, computing, and precision measurement sectors, with 588 patents and involvement in national projects like the "Beijing-Shanghai Backbone" [3]. - Other notable companies include Keda Guokuan (300520.SZ), Shenzhou Information (000555.SZ), and Huagong Technology (000988.SZ), which have high relevance in quantum technology due to their specialized developments and applications [2][3]. Financial Performance - In H1 2025, Hengtong Optics (600487.SH) and Zhongtian Technology (600522.SH) led the revenue with 32.05 billion and 23.6 billion respectively, while Guodun Quantum and Electric Science Cyber Security (002268.SZ) reported lower revenues as they focus on niche markets [4][6]. - The gross profit margins varied significantly, with Dipu Technology (300768.SZ) achieving the highest at 62.4%, followed by Tianfu Communication (300394.SZ) at 50.8% and Guodun Quantum at 48.4% [5][6]. Regional Layout - The quantum communication industry shows a clear clustering in the Yangtze River Delta, with major cities like Shanghai and Hefei being key locations for many companies, while the Beijing-Tianjin-Hebei region focuses on governmental and financial applications [7][9]. Business Planning - Guodun Quantum aims to commercialize low-cost quantum technology and expand into consumer markets, while other companies like Hengtong and Zhongtian are accelerating the industrialization of quantum optical cables and exploring 5G integration [15][17].

Core Insights - The global quantum communication market is projected to reach $2.67 billion by 2024 and nearly $20 billion by 2030, driven by advancements in quantum information technology [1][2] - Quantum communication, particularly Quantum Key Distribution (QKD), is primarily utilized in the defense and military sectors, accounting for approximately 25.65% of the market in 2023 [2] - The Chinese government has elevated quantum communication to a national strategic priority, with multiple policies introduced to support its development during the 13th and 14th Five-Year Plans [4][5] Market Overview - The quantum information technology sector is expected to experience rapid growth, transitioning from a nascent stage to a more developed market [1] - The industry is characterized by significant investments from both government and private sectors, aiming to secure a competitive edge in quantum technology [1] Policy Support - The Chinese government has implemented a series of policies to bolster quantum communication, including the establishment of a quantum secure communication backbone network [4] - Recent initiatives, such as the "Measurement Support for New Quality Production Power Development Action Plan (2025-2030)," emphasize the strategic importance of quantum communication and aim to overcome technical challenges [8] Application Areas - QKD is the most significant application area for quantum communication, with expectations for its adoption to expand into various industries as technology matures [2]

Core Insights - China has made significant advancements in technology and innovation during the "14th Five-Year Plan" period, positioning itself as a leader in various scientific fields [3][5][10]. Group 1: Technological Advancements - The high-altitude cosmic ray observatory at 4,410 meters has revealed key clues about the origins of cosmic rays in the Milky Way for the first time in history [3]. - The China Spallation Neutron Source, referred to as a "super microscope," has made breakthroughs in understanding the deep secrets of precision components, placing China at the forefront of micro-detection [3][8]. - Major scientific infrastructure projects have been implemented, with the number of such projects more than doubling compared to the previous five-year plan, marking a record high [8]. Group 2: Innovation and Intellectual Property - According to the Global Innovation Index report, China has seen a comprehensive rise, aiming to enter the top ten globally by 2025, with 24 Chinese innovation clusters now among the world's top 100, a growth of over 40% compared to five years ago [5][12]. - China holds the highest number of artificial intelligence patents globally, with over 5,000 AI companies established, significantly impacting various industries [12][14]. Group 3: Quantum Communication and Research Ecosystem - More than 20 key cities, including Shanghai, Beijing, and Wuhan, have established a metropolitan quantum communication network, creating the largest quantum communication network in the world [14]. - The Greater Bay Area has developed a world-class scientific area of nearly 200 square kilometers, fostering a seamless integration of academia, research, and industry [10].

Core Insights - The research team from the University of Pennsylvania and CUNY has proposed an innovative "classical-decisive" quantum internet architecture, marking a significant step towards the practical and scalable development of quantum communication [1][4]. Group 1: Quantum Internet Challenges - The development of traditional quantum internet faces three core challenges: the fragility of quantum states, hardware compatibility and scalability, and the lack of synergy between quantum and classical communication [3]. - Quantum states are easily disrupted by environmental noise, leading to decoherence and unreliable information transmission [3]. - Early quantum communication systems rely on discrete optical components, making them large, power-hungry, and unstable, hindering miniaturization and mass production [3]. - Effective collaboration between quantum and classical layers is essential for key distribution, network routing, and error correction, yet remains a significant challenge [3]. Group 2: Integrated Photonics as a Solution - Integrated photonics is identified as a key technology to address these challenges, allowing for the integration of optical components on a single chip, enhancing system stability, scalability, and cost-effectiveness [3]. Group 3: Innovations in Architecture - The research introduces a "dual-track" collaboration between quantum and classical channels, redefining their relationship and enhancing the stability and operability of quantum communication [5][8]. - The quantum channel is responsible for transmitting quantum entanglement or keys, while the classical channel transmits deterministic control information, ensuring high-speed and reliable information exchange [6][7]. Group 4: Hardware Implementation - The research team successfully integrated quantum light sources, modulators, detectors, and classical control circuits onto a single photonic chip, significantly reducing the system's size and power consumption [9][11]. - The quantum light source generates entangled photon pairs with high brightness and purity, providing a reliable quantum carrier for communication [9]. - The integration of photodetectors and electro-optical modulators on the chip facilitates efficient conversion between quantum optical signals and classical electrical signals [10]. Group 5: Performance Breakthroughs - The system achieves near 100% success probability in quantum communication through deterministic control, significantly reducing communication delays and resource consumption [12]. - The modular design of the integrated photonic chip allows for rapid deployment of quantum nodes and linear network expansion, laying the groundwork for a global quantum internet [12]. Group 6: Industry Impact - The development of the "classical-decisive" quantum internet is expected to transition quantum technology from laboratory experiments to a widely accessible infrastructure, potentially revolutionizing secure communication, computational capabilities, and sensing precision [14].

Core Viewpoint - The article emphasizes the importance of state-owned enterprises (SOEs) in driving high-quality development through technology innovation and industry integration on the Sci-Tech Innovation Board [1][2]. Group 1: Industry Mergers and Acquisitions - SOEs are accelerating the cultivation of new productive forces by actively engaging in mergers and acquisitions on the Sci-Tech Innovation Board [2]. - In January 2025, China Telecom's subsidiary, Quantum Group, officially took over "the first stock in quantum communication," Guoshield Quantum, to build new industry synergies in the quantum communication field [2]. - In 2024, Zhongke Star Map and its subsidiaries acquired seven companies to enhance their industry chain and broaden application areas, reinforcing a dual-driven development model of "internal growth + external expansion" [2]. Group 2: Quality Improvement and Efficiency - Improving the quality of listed companies is fundamental for the long-term healthy development of the capital market, with SOEs playing a leading role [3]. - Nearly 40 SOE companies on the Sci-Tech Innovation Board disclosed their annual action plans for "quality improvement and efficiency enhancement" in 2024 [3]. - SOEs have established a good benchmark for investor returns, with many maintaining a cash dividend ratio exceeding 20% and repurchasing nearly 100 million yuan worth of stocks in recent years [3]. Group 3: Market Value Management - Effective market value management requires enhancing internal operational efficiency and improving external communication with investors [6]. - SOEs are encouraged to strengthen their internal capabilities and improve operational quality to gain market and investor recognition [6]. - A representative from an SOE shared that their company established a market value management leadership group and improved information disclosure, leading to positive outcomes in market performance and institutional holdings [6]. Group 4: Future Support and Policy Implementation - The Shanghai Stock Exchange will continue to support SOEs in enhancing operational quality and increasing social value [4][7]. - The exchange plans to implement policies such as the "Eight Measures for the Sci-Tech Innovation Board" and "Six Measures for Mergers and Acquisitions" to optimize institutional inclusiveness and adaptability [7].