What are the advantages of quantum communication over traditional communication?

As follows:

First of all, quantum communication technology can ensure the security of information transmission. Through this technology, one can effectively realize QKD and ensure its security through the physical properties of quantum states (such as irreducible, indivisible and indeterminate). Since QKD provides a symmetric key, it can be obtained using modern cryptographic algorithms, thus fully revealing the confidentiality of the message.

Secondly, quantum communication technology can also transmit quantum states, or quantum states. Due to its effectiveness, traditional communication technology cannot be replaced. With this feature, quantum sensors or quantum computers can be provided in the future.

Third, quantum communication technology can increase the bandwidth of the channel. Quantum mixing can be used to process relevant information and a new coding technique can be designed to overcome the limitations of channel capacity. Currently, there are many theoretical proofs in the research of quantum channel capacity, such as ultra-compact quantum coding. There are many functions of quantum communication technology, mainly involving quantum storage media, which will greatly facilitate the work on quantum information and communication channels.

Quantum communication technology is the safest artificial communication technology. Amazing quantum connections, but what we usually learn is quite different. It is a disruptive innovation in the field of communication. Although quantum communication is still in an experimental state, that doesn't stop us from looking forward to this new form of communication.

The characteristics and advantages of quantum communication over traditional communication technologies are that it is more time-efficient, better resistant to interference, more reliable in terms of confidentiality, and requires less noise. The delay of the quantum communication line is almost zero, the information transmission rate is high, and the process availability is high; the communication between quantum communication, information transmission and mass media is not affected by the spatial environment, and it has good noise immunity.