A Chinese-South African team has tested a quantum microsatellite capable of achieving long-distance communications through secure quantum key distribution. By transmitting images over 12,900 kilometers, they have laid the groundwork for developing a global quantum network, which could significantly enhance communication, computing, and sensing technologies in the future.
A collaborative team from China and South Africa has successfully tested a quantum microsatellite, marking a significant step towards establishing a global quantum network. This small, lightweight device, along with portable ground stations, enabled a record-setting communication feat.
The researchers transmitted two images—one depicting the Great Wall of China and the other showcasing Stellenbosch University’s campus—over a distance of 12,900 kilometers (8,000 miles) using a shared encryption key via the satellite. This accomplishment demonstrates potential in quantum key distribution.
In their published findings, the team stated, “[We] report the development of a quantum microsatellite capable of performing space-to-ground quantum key distribution using portable ground stations.” They further noted that this achievement creates a solid foundation for their vision of deploying multiple microsatellites, ultimately aiming to develop a comprehensive network of optical ground stations.
The ambitious goal includes establishing a global-scale quantum network that will revolutionize communication, computing, and sensing capabilities, with expectations of significant advancements in the near future.
The successful testing of the Chinese-South African quantum microsatellite signals a promising move towards the development of a global quantum network. This setup not only achieved record transmission distances but also paved the way for future innovations in secure communications and technology. As research progresses, the potential for practical applications in various fields increases, suggesting that a transformative shift in communication technology could soon be realized.
Original Source: www.scmp.com
