The commercialization journey of quantum technology is progressing, yet a consensus on its precise stage remains elusive. Public information often presents vague or conflicting claims. To gain clarity, a researcher engaged in an extensive dialogue with Guo Guangcan, a pioneer and leading scientist in China's quantum research, an Academician of the Chinese Academy of Sciences, and a professor at the University of Science and Technology of China. He provided candid insights into the current state and future trajectory of quantum technology's industrialization.
Regarding the core application areas, quantum computing holds the most potential for disruptive societal impact, fundamentally through an exponential increase in data processing speed. This could revolutionize fields like artificial intelligence by overcoming current computational bottlenecks and significantly accelerate processes such as drug discovery. However, quantum computing is far from commercial readiness. It is currently transitioning from prototype validation to specialized analog machine development. While some products have been sold, they are primarily for trial use to assess feasibility. True market development conditions will only be met with the advent of universal quantum computers capable of solving problems beyond the reach of classical computers. Assisted by advancements in artificial intelligence, which are optimizing design requirements, the emergence of universal quantum computers is estimated to be approximately a decade away.
Among the three primary fields, quantum precision measurement is the most likely to achieve large-scale commercialization first, potentially within 3 to 5 years. This is due to its relatively lower product costs and technical barriers. Quantum sensors, offering higher precision and sensitivity, are already in trial phases within real-world power grids and medical collaborations, showing promise for early disease detection and infrastructure monitoring. However, widespread market adoption still depends on further improvements in cost, size, and performance.
The field commonly referred to as "quantum communication" is more accurately termed "quantum secure communication." Its core is using quantum properties to generate keys for securing classical communication. There are two main key distribution methods: Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC). It is unscientific to claim any product labeled "quantum secure communication" is absolutely secure; both methods require rigorous scientific validation. Large-scale commercialization of quantum secure communication is estimated to be 5 to 10 years away, with PQC potentially leading the initial adoption.
For effective industrial foresight and layout, government support should be selective, targeting startups with clear target markets and technical prowess that are already delivering trial products, rather than indiscriminate funding. Support mechanisms can include both R&D projects to enhance product metrics and application projects to provide early-use scenarios. Governments can play a crucial role by being early adopters and encouraging industry trials, particularly by integrating quantum technology with new digital infrastructure like data centers and computing hubs. A notable example is the exploration of "quantum-classical hybrid" computing platforms.
For Sichuan Province, which has incorporated quantum technology into its development plans, there is a significant opportunity. While its current industrialization level is mid-tier nationally, the absence of a mature market presents a chance for advancement. Sichuan possesses a strong industrial foundation in sectors like aerospace and electronics. The recommendation is to leverage this existing industrial system to develop quantum technology applications, pursuing a path of differentiated competition by focusing on areas other provinces have not yet mastered, thereby carving out its own niche in the quantum landscape.
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