Core Insights - The report analyzes the global coaxial cable market for quantum computing, highlighting the critical role of ultra-low temperature coaxial cables in superconducting quantum computing systems, which must meet extreme low-temperature requirements for high-fidelity signal transmission, low thermal load, and interference resistance [1][7][8] - The market is segmented, with high-end products below 4K priced at $3,000 each, dominated by international manufacturers, while domestic companies like Western Superconducting are gradually overcoming technical barriers through material localization and process innovation [1][2][18] - The demand for coaxial cables is closely linked to the scale of quantum bits, with a practical requirement of approximately 3,100 cables for a 1,000-qubit quantum computer, potentially reduced to 1,100 cables under ideal conditions [1][8] Market Analysis - The ultra-low temperature coaxial cable market exhibits significant stratification, with high-end products priced at $3,000 for 4K and above products priced at $1-2 per meter, indicating a clear differentiation in product offerings [1][18] - The profit margins for 4K below products dominate, with a gross profit of $800-1,200 per cable and a gross margin of 27%-40% [1][8] - The report emphasizes the need for innovation in flexible, photonic multiplexing, and high-density integration to address challenges such as "wiring walls" and cooling limits [1][2][8] Competitive Landscape - International firms like Delft Circuits and CryoCoax monopolize the high-end market, while domestic players like Western Superconducting lead in NbTi and Nb₃Sn wire materials, although innovations in flexible cables still require breakthroughs [2][8] - The future of the industry may see advancements in all-optical wiring and time/frequency division multiplexing technologies, which could enhance transmission efficiency and reduce reliance on traditional coaxial cables [2][8] Technical Challenges - The coaxial cables face significant technical barriers, including low-temperature compatibility, high-frequency stability, low loss and noise, and supply chain constraints [29] - The report identifies the "wiring wall" issue as a limitation for scaling quantum bits, with existing dilution refrigerators struggling to meet the cooling demands of high-density wiring [27][29] Future Outlook - The report anticipates that breakthroughs in flexible cables, fiber optic transmission, and multiplexing technologies will create new opportunities for industry growth [8][29] - The ability to solve the extreme challenges of low-temperature connections will be crucial for advancing quantum system integration capabilities [8][29]

同轴电缆在量子计算中承担高保真信号传输的核心功能，其技术已从早期室温射频测试场景，跨越至接近绝对零度（10mK）的 极低温环境。当前技术要求包括：零电阻特性（如NbTi超导材料在9.2K以下实现零电阻）、GHz级微波传输能力（5-10GHz）、 热负载控制（单通道热负荷<4μW）及抗干扰设计（如迈斯纳效应屏蔽）。材料体系从单一金属导体拓展至柔性超导合金（如 NbTi）、多路微带结构，甚至融合电光复用技术，推动量子系统集成向高密度、低损耗方向发展。 二、产品分类与特性 根据材料和结构，量子计算用同轴电缆分为三类： 1. 超导材料类：以NbTi同轴电缆为代表，低温下实现零电阻传输与电磁屏蔽，外径0.040"，特性阻抗50Ω，用于4K以下极低温场 景，单根价格高达3000美元。 今天分享的是：2025年全球量子计算用同轴电缆市场分析报告-光子盒研究院 报告共计：36页 2025年全球量子计算用同轴电缆市场分析报告核心内容总结 一、技术演进：从室温到极低温的突破 2. 低温非超导金属类：如柔性不锈钢电缆，具备低导热性，适用于大温度梯度环境，但存在弱磁性，成本较低。 3. 创新结构类：如Delft Circuits的C ...