Chinese-South African Team Advances Quantum Communications with Microsatellite
Chinese-South African researchers have tested a quantum microsatellite that successfully transmitted encrypted images over a distance of 12,900 kilometers. This achievement lays the groundwork for plans to establish a global quantum network using multiple microsatellites and optical ground stations, aiming to revolutionize communication and computing.
A collaborative effort between Chinese and South African researchers has led to a significant advancement in quantum communications through the testing of a quantum microsatellite. The team utilized a lightweight device along with portable ground stations to achieve a groundbreaking transmission record. They successfully transmitted two images—one depicting China’s Great Wall and the other showcasing Stellenbosch University—over a distance of 12,900 kilometers (8,000 miles) by sharing an encryption key via the satellite.
The researchers stated, “[We] report the development of a quantum microsatellite capable of performing space-to-ground quantum key distribution using portable ground stations.” This accomplishment sets a strong groundwork for future endeavors aimed at deploying multiple microsatellites and forming a comprehensive network of optical ground stations. The overall vision is to pave the way toward the realization of a practical quantum constellation.
The team expressed optimism regarding the establishment of a global-scale quantum network. They highlighted that such a network promises groundbreaking advancements in communications, computing, and sensing capabilities, indicating that this technology could soon transform global communications.
This initiative marks a significant step toward establishing a global quantum network, leveraging the capabilities of quantum microsatellites. The successful transmission of encrypted images raises the potential for operational networks that can enhance communication and computational technologies on a worldwide scale. As researchers aim to expand this technology, the future of quantum communications looks promising, indicating a transformative approach to global data transmission.
Original Source: www.scmp.com
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