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According to Hong Kong's South China Morning Post, scientists in China and Russia have recently succeeded in establishing encrypted quantum communications with the help of security keys transmitted by China's Micius satellites. The test proved that it is "technically absolutely possible" to build a quantum communication network between the BRICS countries.
According to reports, the test was carried out on March 1, 2022, using the Zvenigorod ground station near Moscow, Russia, and the Nanshan ground station near Urumqi, Xinjiang, China, about 3,800 kilometers apart. During the test, the scientists sent two images, both encrypted with a quantum key.
-- Overview of the field of quantum information
Quantum information refers to a new way of computation, encoding and information transmission based on the basic principles of quantum mechanics and through various coherent properties of quantum systems (such as quantum parallelism, quantum entanglement and quantum unclonability). Quantum information mainly includes quantum computing, quantum communication and quantum measurement, and has the potential to surpass classical information technology in terms of improving the ability to calculate and process difficult problems, strengthening the ability of information security protection, and improving the accuracy of sensing and measurement.
——Quantum communication: It has attracted much attention from the market, and the industry scale has grown rapidly
The products and technical services of quantum communication mainly belong to the field of network security, which is a core and fundamental sub-industry in the huge industry of network security, and can be extended to the security products involved in multiple industries. From the perspective of the current development of the quantum communication industry, it is mainly due to the industrial value brought by quantum physical encryption products and technologies (such as QKD), PQC, QRNG, etc. The global QKD market size in 2022 decreased from 2021 to US$800 million, and due to COVID-19, projects that were previously supported by government funds were affected, and many projects were suspended or slowed down due to the pandemic and economic slowdown. With the gradual recovery of the global economy, the application scenarios of QKD are gradually clear and increasing, etc., the next few years will be a good stage for the rapid growth of the QKD industry, and by 2025, the market size is expected to reach 3.504 billion US dollars. According to Coherent Market Insights, the global quantum communications industry is expected to reach $7.85 billion in 2030.
- Quantum communication: QKD is the most mature technology product in the field of quantum communication and security
Quantum communication uses quantum states as information carriers to realize information exchange, and typical applications include quantum key distribution (QKD) and quantum teleportation (QT). At present, QKD is the most mature technology product in the field of quantum communication and security, and has been applied in many countries and industries.
At present, national defense and military and power grid are the most important application markets for QKD. With the development of quantum information technology and the continuous evolution of quantum communication networks, quantum communication will help to ensure information security in important fields such as finance, telecommunications, and government services in the future.
Zhang Haiyi, director of the Institute of Technology and Standards of the Chinese Academy of Information and Communications Technology, pointed out that in the future development trend, the application scenarios of quantum secure communication based on QKD are limited, and it is necessary to further improve the product performance indicators and engineering level, explore and expand effective application scenarios, in order to solve the dilemma of industrial development, and post-quantum encryption (PQC) is a development direction worth paying attention to. In addition, the quantum information network (QIN) combined with QT and other technologies is the direction of future integration and development, and has become the main track of scientific research competition in the field of quantum communication.
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For more research and analysis of this industry, please refer to the "Market Prospect and Investment Strategy Analysis Report of China's Quantum Communication Industry" by Qianzhan Industry Research Institute.
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