Lin Li hurriedly came to Xiao Ming's office early in the morning, and after becoming the company's rotating chairman, although Lin Li is no longer responsible for collective business matters, he still grasps the Pangu ecology and the major project deployment decisions of Pangu Future Company.

The matter of quantum communication was established a few years ago when the quantum chip came out in Mingqiu, and Pangu Future Co., Ltd. has also been doing corresponding experiments.

At present, the Pangu Science and Technology Park of Quantum Communication has been piloted on a small scale.

The core part of quantum communication is the quantum entangled state. The main components include quantum state generators, quantum channels and quantum measurement devices.

Quantum satellites are not a new thing, in the early years, Xia Guo launched a quantum satellite, but the quantum satellite can only be used for special experimental communication because of the less entangled bits, and cannot be used as universal civil communication.

However, Pangu technology is different, with the application of quantum chips in the next autumn, it can master multi-quantum and multi-bit entanglement, and this entanglement state has been able to meet the daily communication of human beings.

Here quantum quantities and bits are different concepts.

The quantum number is easy to understand, in the macroscopic quantum concept, an electron, a photon are quanta, and the "one" here is the quantum number.

And what about bits?

For example, a quantum has paths, polarization, angular momentum, and so on. If these three features are related to each other, then there is a 3 times 6 equal to 18-bit entanglement between six photons (quanta). This is the concept of qubits.

The basic principle of quantum communication is that through certain means, communication satellites, base stations, user terminal equipment, etc., can make different characteristics of quantum entanglement in a certain way, so that after superposition, multi-quantum, multi-bit entanglement states will occur to meet people's demand for information.

Quantum information in the transformation of people need information, also need to adopt certain measures, that is, the terminal equipment quantum measurement device, according to the characteristics of quantum entanglement, quantum information will be obtained in two ways, one is that the surveyor will make a perfect copy of the original when measuring the quantum entanglement state. During this process, the original substance is not transported, and the replica is only extremely similar to the original material. One is that in the case of a pair of entangled particles, the sender of the message measures other matter with one of the entangled particles, and the end receiver performs a special transformation to create the unknown.

The advantages of quantum communication are that it can communicate instantly, cannot be deciphered, cannot be eavesdropped, and is amorphous.

As long as your entanglement bits can meet the requirements, theoretically speaking, the communication speed can reach the speed of light. The speed of light is basically unlimited for people's daily communication.

In the Pangu Science and Technology Park, Pangu Future conducted simulation experiments at the end of last year.

A signal relay station is set up on the high mountain next to the park, which simulates the role of quantum satellites.

There are a total of three small communication base stations at different locations in the park, and the LAN of Pangu Technology Future Company's employees is currently completed by quantum communication.

In the course of testing, employees have discovered many advantages of quantum communication.

For example, in the virtual community with high requirements for network quality, employees use Qinghe equipment upgraded with quantum communication components to enter and exit almost every second without any delay.

For example, in places where communication signals were not good in the past, such as in the depths of the laboratory, there is no problem with quantum communication now.

The most critical is the issue of information security, the use of quantum communication, in addition to the sender of information and the receiver of information, the middleman can not steal user information by any means, which will give users great security in the network world where privacy has nowhere to be found.

Xiao Ming proposed: "Why our public opinion abroad is so passive, is because the Internet and communication are not in the hands of Xia Guoren, even if Huawei can take the lead in 5G communication, but still cannot occupy the initiative." ”

Xiao Ming asked Lin Li, "We don't lack technology, and now we want to rebuild the Internet and communication ecology and firmly occupy the initiative, which is much more useful than letting Xiao Chu hack Twitter and Facebook." ”

Lin Li smiled embarrassedly and said, "Xiao Chu chatted with me that day, so I just talked about it casually. ”

Lin Li gave his own plan, "We can use Jiangcheng as a pilot to enable Jiangcheng citizens to use quantum communication first." ”

Changing the way of communication of citizens is not as simple as changing a communication terminal or changing a card, from the point of sending to the receiving point of the message, it is necessary to build a complete communication system.

This can first start with the Pangu technology ecological chain.

The hot sales of Qinghe equipment have integrated the Pangu ecology into all aspects of people's lives, and if we start with the Pangu ecology, we can slowly guide people from the traditional communication and network era into the quantum era.

Lin Li said: "We are trying to build a super server in Jiangcheng to move the corresponding content of the ecological chain to the server. In addition, quantum satellites can use the transfer stations we have already built without going to the sky. In addition, we only need to upgrade the user's Qinghe device, so that the user does not need to change the card temporarily, and try to implement dual communication in parallel. ”

According to the principle of quantum communication, there is no distance limit for communication, so quantum satellites can be in the sky or on the ground.

The purpose of launching the satellite is in the sky, so that it will not be damaged by man, will not withstand the wind and rain of nature, and has a long service life and low maintenance costs.

At present, Pangu Technology has not yet reached the time to take quantum satellites into the sky, after all, it is only a small-scale test.

Lin Li left Xiao Ming's office, and the next day Pangu Technology quietly registered Pangu Quantum Communication Co., Ltd.

The name is straightforward and purposeful.

Some boring netizens observe the new business of Pangu Technology in the "Enterprise Chachacha" every day, and suddenly find that the newly registered Quantum Communication Co., Ltd. is like discovering a new continent.

In the face of questions from some netizens, Pangu Technology only responded in a low-key manner, which was for the purpose of preemptively registering the trademark in the future.

In the age of the Internet, where there is a lot of news every day, this little doubt is quickly covered by other news.

The team of Pangu Technology is working in strict accordance with the plan.

The Pangu ecological applications developed by Pangu Technology, especially the virtual community, were all migrated from the Pangu Technology Group server to the newly established quantum server.

Lin Li will also build quantum servers in cities with a high concentration of Internet industries such as Shenzhen, Yanjing, Shanghai, and Rongcheng.

In the future, all application layers of the Pangu ecosystem can be run on servers and seamlessly connected with the quantum communication network.

Pangu Technology is also contacting major application layer companies, and welcome them to rent Pangu Technology quantum servers and put relevant resources on the servers to run.