In which areas does China have absolute advantages?

In the fields of quantum communications, supercomputers, and 5G.

Quantum communication is a new communication method that uses quantum superposition states and entanglement effects to transmit information. Based on the three principles of uncertainty, measurement collapse and non-cloning in quantum mechanics, it provides an absolute security guarantee that cannot be eavesdropped or computationally cracked. Mainly

It is divided into two types: quantum teleportation and quantum key distribution.

Quantum key distribution, also known as quantum cryptography, uses the transmission measurement of quantum superposition states to achieve secure quantum key sharing between communicating parties, and then uses a one-time pad symmetric encryption system, that is, both communicating parties use the same length as the plaintext.

The password is encrypted and decrypted bit by bit to achieve unconditionally and absolutely secure confidential communication.

Features Quantum communication has many characteristics. Compared with traditional communication methods, the biggest advantage of quantum communication is absolute security and high efficiency. First of all, traditional communication methods have many flaws in terms of security. Quantum communication will encrypt and transmit information.

In this process, the key is not certain and is full of randomness. Even if it is intercepted by relevant personnel, it is not easy to obtain the real information.

In addition, quantum communication also has strong anti-interference ability, good concealment performance, low noise ratio requirements and the possibility of wide application.