【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 ...

Summary of Guodun Quantum Conference Call Company Overview - **Company**: Guodun Quantum - **Industry**: Quantum Communication and Technology Key Points Financial Performance - In Q1 2025, Guodun Quantum reported revenue of approximately 20 million yuan, a year-on-year increase of 100% [2][4] - The company expects a total revenue growth of about 30% for the year 2025, reaching over 300 million yuan [3][24] - The main revenue source in 2024 was quantum secure communication, contributing around 250 million yuan, accounting for over 60% of total revenue [3] Strategic Partnerships - Guodun Quantum has formed a deep integration with China Telecom, focusing on application development and market promotion, while Guodun concentrates on core equipment and next-generation technology research [2][5] - China Telecom plans to build a nationwide quantum information security infrastructure, which is expected to contribute approximately 100 million yuan to Guodun's revenue in 2024, accounting for about 40% of total revenue [2][8] Market Position and Competitiveness - Guodun Quantum holds over 90% market share in the quantum secure communication sector, indicating strong competitiveness [2][8] - The company is also involved in quantum computing and precision measurement, with significant revenue from core equipment and related services [3][4] Future Outlook - Guodun Quantum anticipates steady growth in three main business areas: quantum security and information technology, high-end scientific instruments, and customized market demands driven by domestic substitution and technology upgrades [4][6] - The company is committed to product enhancement and core technology development, aiming for breakeven while providing better returns to investors [24] Technological Developments - The integration of Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC) is seen as a significant future direction, with QKD providing a robust information security foundation [3][14] - Guodun Quantum is exploring opportunities in quantum computing, with a focus on high-end scientific instruments and potential applications in various industries [18][23] Industry Trends - The quantum communication market is expected to grow, with China Telecom's initiatives to promote quantum information and security technology in various sectors such as finance and government [7][8] - The company is also observing trends in international markets, noting that while the U.S. focuses on PQC, China is well-positioned to develop QKD as a foundational technology [12][13] Challenges and Considerations - Despite the optimistic outlook, Guodun Quantum acknowledges the uncertainties in the market and refrains from making overly optimistic projections for the next three to five years [25] - The company emphasizes the importance of maintaining independence and innovation while collaborating with China Telecom [5][10] Conclusion - Guodun Quantum is positioned for growth in the quantum technology sector, leveraging strategic partnerships and a strong market presence in quantum secure communication. The company is focused on technological advancements and expanding its revenue streams while navigating the complexities of the evolving market landscape.