The development of quantum communication, from China's quantum satellite "Micius" to Europe's quantum communication network project, and to the United States' national quantum initiative, not only demonstrates the importance of quantum communication but also highlights its enormous potential in the future of communication. To understand the working principles of quantum communication, we need to start with its network architecture. Unlike traditional networks, quantum networks utilize the remarkable phenomenon of quantum entanglement to transmit information. This architecture not only enables ultra-long-distance secure communication but also lays the foundation for the future quantum internet. The advantages of quantum communication are primarily manifested in two aspects: security and efficiency. In terms of security, quantum key distribution technology uses the fundamental principles of quantum mechanics to achieve theoretically unbreakable communication encryption. These advantages give quantum communication broad application prospects in highly sensitive fields such as finance and national defense. Finally, let's turn to one of the most astonishing applications of quantum communication — quantum teleportation. While this technology sounds like something out of science fiction, it is actually based on rigorous quantum mechanical principles. Through quantum teleportation, we can instantaneously transmit the information of a quantum state to a distant location without the need for direct transmission of a physical carrier. This not only challenges our traditional understanding of information transmission but also opens up new possibilities for future quantum computing and quantum networks.

Implemented by College of Science
Date: 2024/09/29