cosmic hegemony

Chapter 257

When it comes to quantum communication, many people may say that scientists on earth have already developed this quantum communication technology. The origin of this technology can actually be traced back to Einstein, one of the greatest scientists in human history. Einstein once proposed a "ghost" - the demonstration of quantum entanglement.

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

In 1993, the scientist Bennett proposed the concept of quantum communication, which is a communication method in which quantum states carry information. It uses the principle of quantum entanglement of elementary particles such as photons to realize a secure communication process.The introduction of the concept of quantum communication has enabled Einstein's "ghost" - quantum entanglement benefits to truly exert its true power.

In 1997, Pan Jianwei, a young Chinese scholar studying in Austria, cooperated with Dutch scholar Bommister and others to realize the long-distance transmission of an unknown quantum state for the first time.This is the first time in the world that a quantum state has been successfully transmitted experimentally from a photon in A to a photon in B.What is transmitted in the experiment is only the "state" expressing quantum information, and the photon itself, which is the information carrier, is not transmitted.

After the new century, all countries in the world have invested heavily in quantum communication, and they all want to be the first to make breakthroughs in this field. In September 2009, Pan Jianwei's scientific research team was based on the 9-node chain optical quantum telephone network. , built the world's first all-pass quantum communication network, and realized real-time voice quantum secure communication for the first time, but this technology can only be used within a range of 3 kilometers, which is too small.

Although scientists have made continuous efforts, the range of transmission has gradually grown from tens of kilometers to hundreds of kilometers. If it is used on a planet, it can barely be justified, but it is used for ultra-long distances between stars. Distance communication is far from enough.

Moreover, the energy consumption of the current quantum communication technology is very high. A quantum communication laboratory even needs to build a special power station to supply power, and there are serious problems such as the entanglement state is too sensitive to the channel length jitter, and the bit error rate increases too fast with the channel length. The problem is that it cannot be used in actual long-distance quantum communication, let alone ultra-long-distance communication in the vast universe.

"The development of quantum communication technology on the earth is very fast, but there is still a long way to go for this quantum communication technology to go from theory to practical application."

In Li Fu's mind, he thought carefully. Regarding the research on quantum communication technology, Fuyun Group Science Research Institute also has it here, and the quantum communication technology of Fuyun Group is no worse than that of any country on the earth. It's just that Quantum communication technology now appears to have entered a critical bottleneck.

Scientists are desperately trying to increase the distance of quantum communication, but slowly discover that communication can only be realized within a range of 1000 kilometers at most, but the energy consumption is too large, too sensitive, and the error rate is relatively high, and special communication needs to be established Road, etc., these factors have been restricting the development of this technology.

Even as far as the current situation is concerned, although this quantum communication technology seems to have many advantages, it is far from being comparable to traditional electromagnetic wave technology in practical terms.

"With one kick in the door, we may be able to break through this bottleneck period soon, or we may not be able to break through this bottleneck period for a long, long time."

Li Fu naturally learned the technology of quantum communication very early in the seeds of civilization. Knowing the situation of this technology, and looking at the existing technologies on the earth, he can see the current situation at a glance.

……

The research institute of Fuyun Group in Yuantou Town, which covers a vast area, has a quiet environment, fresh air, and a pleasant climate. Each research institute, laboratory, villa, etc. are surrounded by mountains and rivers, among dense forests looming.

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

Of course, the outside world does not know about Duan Guang. Like many outstanding scientists in the research institute of Fuyun Group, the company does not disclose many technologies to the public for the sake of confidentiality. Many outstanding scientists are unknown to the outside world, but everyone inside Know the level of these scientists.

Scientists who have practiced Yuanli, their bodies and brains have been nourished by Yuanli, and their scientific research is far beyond what ordinary scientists can compare. Active, with good physical fitness, the speed of learning and research is beyond imagination.

The Fuyun Group is able to have what it is today, not because of anything else, but because it has hundreds of thousands of outstanding scientists in its hands. Any one who comes out is a top scientist in the outside world. Many technologies that have not been announced, just take out one of them. Enough to shock the world, anti-gravity technology, gene recombination technology, energy weapon technology and so on.

"Brother Fu, what wind brought you here to me?"

Duan Guang, who was dressed in a white coat, saw Li Fu walking into his laboratory, and hurried over to greet him. The scientists in the entire research institute basically knew Li Fu, and the leaders of each laboratory had a very good relationship with Li Fu. Because Li Fu would go to various laboratories to chat with each other when he had nothing to do, to discuss the progress of research and so on.

Of course, these bigwigs in science and technology can make Li Fu respectful. Li Fu does not rely on his status as a boss. Scientists are a group of proud people. Many people don’t care about power and money. What can really make them respect is Outperform them in what they do best.

It is precisely because Li Fu is able to talk about one, two, three in various fields of science and technology, and even many problems that everyone encounters, that Li Fu can It was pointed 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 to be good at multiple fields, or even all fields, is very awesome, and one has to admire such a person.

"I heard that you have been irritable recently, so come and have a look."

Li Fu and Duan Guang are also very familiar, so they are also very casual, without the slightest airs, and the other scientists around them are also looking at them one by one at this time. Many of them are new to the research institute and do not know Li Fu yet. I was also very excited to see Li Fu one by one.

"The boss has no airs."

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

"As far as I know, he graduated from a major in biomedicine. Does he also understand quantum communication?"

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

"..."

The people on the side murmured, and Li Fu's cultivation base naturally heard it clearly, but they didn't care about it at all. This kind of thing didn't happen once or twice.

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

Hearing Li Fu's words, Duan Guang rubbed his head, and said helplessly that what scientific research is most afraid of is entering the bottleneck period, because once it enters the bottleneck period, there may be no progress for several years, ten years, or decades. Some scientists have spent their entire lives researching in a certain field without any results.

This does not mean that this scientist is not outstanding or good enough. It can only be said that after falling into the bottleneck period, if you want to go further, you need a flash of inspiration or a sudden epiphany. Otherwise, the boring research will be lost. It became more annoying.

Not seeing hope and not seeing the future is the most uncomfortable thing. This is almost the case at this time. Quantum communication research has entered a bottleneck period. No matter how much resources and energy are invested, there is still no progress. From beginning to end I carefully stroked it over and over again, but I still couldn't see a trace of progress.

"Tell me?"

Li Fu nodded to express his understanding. This is like doing a math problem. When you encounter a difficult math problem, you solve it over and over again, but no matter how you try to solve it, you still can’t solve it. At this time, people will become very irritable. , tearing off the draft paper, kneading it into balls, 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 high, errors occur frequently, and special channels need to be established. There is no progress in all aspects, and it is impossible to increase the distance, and it is impossible to reduce energy consumption and so on.”

Duan Guang scratched his hair a few times in annoyance. 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 he has become very different. irritable.

"A range of tens of thousands of kilometers?"

Li Fu nodded silently in his heart. Such a large area is completely acceptable for communication on the earth. As long as the error rate and energy consumption can be reduced, he can receive it, but this is not what he wants. Quantum communication technology, the quantum communication technology I want can be used in the universe.

Even if there are countless galaxies, river systems, etc., ultra-long-distance real-time communication can be achieved by relying on quantum communication technology. This is quantum communication technology. The current quantum communication technology is not even comparable to traditional electromagnetic wave communication technology. [-] kilometers seems to be a large range, but it is far from enough in the solar system, let alone used in the vast universe.

　Quantum communication technology has not yet entered the practical stage, so please don't complain about me.

　　
　
(End of this chapter)