Implementing a practical quantum secure direct communication system
(PHYSorg.com Physics)

Quantum secure direct communication (QSDC) is an important branch of quantum communication, based on the principles of quantum mechanics for the direct transmission of classified information. While recent proof-of-principle experimental studies have made remarkable progress; QSDC systems remain to be implemented in practice. In a recent study, Ruoyang Qi and co-workers at the departments of low-dimensional quantum physics, information technology, electronics and information engineering, proposed and experimentally implemented a practical quantum secure communication system.