星地量子直接通信技术首试“飞天”

Group 1 - The core viewpoint of the article highlights the successful completion of the module-level verification of China's star-ground quantum direct communication technology, marking a significant step towards the construction of an integrated quantum direct communication network in space and on Earth [1] - The verification was conducted using the "Yuanxingzhe No.1" rocket developed by Beijing's commercial aerospace company, which successfully completed its first sea recovery test [1] - The two key modules developed by the Beijing Quantum Institute are essential for the star-ground quantum direct communication system, enabling information transmission and decoding [1] Group 2 - The rapid development of the commercial aerospace sector in Beijing presents more opportunities for innovation and cost reduction in the design of aerospace standard components [2] - The recent test involved the modules flying to an altitude of approximately 2.5 kilometers, where they faced the highest acceleration and vibration, successfully passing the test [2] - The team has optimized the quantum direct communication system's size from approximately the size of five computer hosts to that of one, aiming to meet the stringent weight and volume requirements for space missions [2]