Speaking of quantum communication, many people may say that this quantum communication technology has been developed by scientists on Earth for a long time. This technology can actually be traced back to Einstein, one of the greatest scientists in human history. Einstein once proposed an empirical evidence of a "ghost" - quantum entanglement.

By 1982, a research team led by physicist Allen Espector confirmed the existence of the "quantum entanglement" phenomenon of microscopic particles for the first time.

In 1993, scientist Bennett proposed the concept of quantum communication. Quantum communication is a communication method that carries information by quantum states. It uses the quantum entanglement principle of fundamental particles such as photons to achieve a confidential communication process. The proposal of the concept of quantum communication has enabled Einstein's "ghost" - quantum entanglement benefits to its real power.

In 1997, Pan Jianwei, a young Chinese scholar who studied in Austria, cooperated with Dutch scholar Bomister and others to realize the remote transmission of unknown quantum states for the first time. This is the first time in the world that a quantum state has been successfully transmitted from the photons of the A to the photons of the B experiment. What is transmitted in the experiment is only the "state" that expresses quantum information, and the photons as information carriers are not transmitted themselves.

After the new century, countries around the world have made huge investments in quantum communication and want to make breakthroughs in this field first. In September 2009, Pan Jianwei's scientific research team built the world's first all-connected quantum communication network based on the three-node chain-shaped optical quantum telephone network, realizing real-time voice quantum confidential communication for the first time. However, this technology can only be within a range of 20 kilometers and the range is too small.

Although scientists have been working hard, the teleportation range has gradually grown from dozens of kilometers to hundreds of kilometers, and it is barely reasonable if it is used on a planet, but it is far from enough to be used for ultra-long-distance communication between the stars.

Moreover, the energy consumption of current quantum communication technology is very high. A quantum communication laboratory even needs to build a special power station to supply power. There are also serious problems such as entangled states being too sensitive to channel length jitter and bit error rate growing too fast with channel length. They cannot be used in actual remote quantum communication, let alone ultra-long-range communication in the vast universe.

"Quantum communication technology on the earth has developed very quickly, but this quantum communication technology has to truly go from theory to practical application, but there is still a way to go."

Li Fu thought carefully in his mind that there are also research related to quantum communication technology in Fuyun Group Science Research Institute here, and Fuyun Group's quantum communication technology is not worse than that of any country on earth. However, this quantum communication technology seems to have entered a critical bottleneck period now.

Scientists are desperately trying to increase the distance of quantum communication, but gradually discovered that communication can only be achieved within a range of 1,000 kilometers at most, but the energy consumption is too high, it is too sensitive, the error rate is relatively high, and special communication channels are also needed, etc. These factors have always restricted the development of this technology.

Even in the current situation, although this quantum communication technology seems to have many advantages, it is still far from comparable to traditional electromagnetic wave technology in practice.

"After a shot, you may be able to break through this bottleneck period soon, and maybe you may not be able to break through this bottleneck for a long time."

Li Fu naturally learned the technology of quantum communication in the seeds of civilization very early. He knew the situation of this technology, and then combined the existing technology on Earth to see the current situation at a glance.

...

Yuantou Town Fuyun Group Research Institute, this scientific research institute with a wide area, has a quiet environment, fresh air, pleasant climate, and a research institute, laboratory, villa, etc. are surrounded by mountains and waters, looming among the dense forests.

Quantum Communication Research Laboratory, a laboratory established by Fuyun Group itself to specialize in quantum communication technology. The person in charge of the laboratory is Duan Guang. Although Duan Guang is young and only in his early 30s, he is definitely the world's top scientist in the field of quantum communication.

Of course, the outside world does not know Duan Guang. Like many outstanding scientists in Fuyun Group Research Institute, the company has not disclosed many technologies to the public for the sake of confidentiality. Many outstanding scientists are unknown to the outside world, but everyone inside knows the level of these scientists.

Scientists with Yuanli practice have both the body and brain nourished by Yuanli. Scientists are far from comparable to ordinary scientists when conducting scientific research. Their learning ability is very strong. The key is that they have strong understanding, active brain, and good physical fitness. The speed of learning and research is beyond imagination.

Fuyun Group can achieve today by relying on the fact that it is not just holding hundreds of thousands of excellent scientists in its hands. Any one of them is a top scientist in the outside world. Many technologies that have not been published are enough to shock the world if they come out, such as anti-gravity technology, genetic recombination technology, energy weapon technology, etc.

"Brother Fu, what wind blows you to me?"

Duan Guang, wearing a white coat, saw Li Fu walking into his laboratory and came to greet him quickly. Basically, Li Fu knew the scientists in the entire research institute, and the heads of each laboratory had a very good relationship with Li Fu, because Li Fu would go to various laboratories to chat with everyone, discuss the progress of the research, etc.

Of course, these technology tycoons can welcome Li Fu. Li Fu is not relying on his identity as a boss. Scientists are all a group of proud people. Many people don’t care about power and money. What can really make them respect is that they are even better than them in the field they are best at.

Li Fu was able to fight with scientists in various laboratories and scientific research fields because Li Fu was able to say a lot of problems in various science and technology fields, and even Li Fu could point them out at a glance, so everyone admired Li Fu from the bottom of their hearts.

It is normal for a person to be good at a certain field, but being able to be good at multiple fields, even all fields is very awesome, and people have to admire such a person.

"I heard that you've been irritated recently, so come and have a look."

Li Fu and Duan Guang are also very familiar with each other, so they are also very casual and have no airs. The other scientists around them all came to see them at this time. Many of them are new to the research institute and do not know Li Fu. At this time, they were also very excited to see Li Fu.

"The boss doesn't have any airs."

"Of course, Brother Fu is very easy-going. If you have any questions, you can go up and ask Brother Fu for advice."

"As far as I know, he graduated from biomedical major. Does he also know about quantum communication?"

"Hehe, it's not just the field of quantum communication, it seems that Brother Fu doesn't know."

“…”

The people beside him muttered, and with Li Fu's cultivation level, he could naturally hear clearly, but he didn't care at all. This kind of thing was not once, twice.

"In the past few months, there has been no progress in research, and I am so annoyed."

Hearing Li Fu's words, Duan Guang also rubbed his head and said helplessly that the most feared thing about scientific research is to enter the bottleneck period, because once it enters the bottleneck period, there may be no progress in a few years, more than ten years, or decades. Some scientists have never achieved any results in research in a certain field.

This does not mean that this scientist is not outstanding or outstanding enough. It can only be said that after falling into a bottleneck period, one needs a flash of inspiration or a sudden enlightenment. Otherwise, the already boring research will become even more annoying.

It is the most uncomfortable to see the future without hope. It is almost like this at this time. Quantum communication research has entered a bottleneck period. Even if you invest more resources and energy, there is still no progress. You carefully read it from beginning to end, but you still cannot see any progress.

"Tell me?"

Li Fu nodded to express his understanding. It was like doing math problems. When encountering difficult math problems, he solved them over and over again, but no matter how he answered them, he still couldn't solve them. At this time, people would become very irritable. Tear off the draft paper and kneaded them into a ball, etc. are very common phenomena.

"At present, we have been able to achieve transmission within a range of tens of thousands of kilometers, but the energy consumption is still very large, and errors are frequent, and special channels are still needed. These are nothing. However, in recent months, we have not made any progress in communication distance and other aspects. We cannot increase the distance any more, nor can we say that we can reduce the energy consumption a little more, etc."

Duan Guang grabbed his hair a few times with some worries. Although he encountered various difficulties in the past, he always made progress and made people see hope. But now he has not made any progress for several months and becomes very irritable.

"A range of tens of thousands of kilometers?"

Li Fu nodded silently in his heart. Such a large range is perfect for communication on the earth. As long as the error rate and energy consumption can be reduced, it can be received. However, this is not the quantum communication technology he wants. The quantum communication technology he wants can be used in the universe.

Even if it is separated by countless galaxies, river galaxies, etc., relying on quantum communication technology to achieve ultra-long-distance real-time communication technology. This is quantum communication technology. Current quantum communication technology is not even as good as traditional electromagnetic wave communication technology. Tens of thousands of kilometers seem to be a large range, but not to mention being used in the vast universe, it is far from enough in the solar system.

Quantum communication technology has not yet entered the practical stage, so don’t complain about me.
Chapter completed!