Universe dominance

When it comes to quantum communication, many people may say that scientists on earth have already developed quantum communication technology a long time ago. 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, a research team led by physicist Alan Spector confirmed for the first time the existence of the phenomenon of "quantum entanglement" of microscopic particles.

In 1993, scientist Bennett proposed the concept of quantum communication. Quantum communication is a communication method in which information is carried by quantum states. It uses the quantum entanglement principle of basic particles such as photons to achieve a confidential 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, collaborated with Dutch scholar Bomister and others to realize the long-distance 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 experimentally from a photon in place A to a photon in place B. What is transmitted in the experiment is only the "state" that expresses quantum information, and the photons themselves, which are the information carriers, are not transmitted.

After the new century, countries around the world have invested heavily in quantum communications, and they all want to be the first to make breakthroughs in this field. In September 2009, Pan Jianwei’s scientific research team built a 3-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. However, this technology can only be used within a range of 20 kilometers, which is too small.

Although scientists have continued to work hard, the transmission range has slowly developed from the original tens of kilometers to hundreds of kilometers. If it is used on a planet, it is barely acceptable, but it must be used for ultra-long distances between stars. Distance communication is far from enough.

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

"Quantum communication technology on Earth is developing very quickly, but there is still a way to go before this quantum communication technology can truly move from theory to practical application."

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

Scientists are desperately trying to find ways to increase the distance of quantum communication, but they are slowly discovering that communication can only be achieved within a range of 1,000 kilometers at most. However, it consumes too much energy, is too sensitive, and has a high error rate. 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, in practical terms it is far from being comparable to traditional electromagnetic wave technology.

"At the last minute, we may be able to break through this bottleneck very soon, or we may not be able to break through this bottleneck for a long, long time."

Li Fu naturally learned the technology of quantum communication very early in the seeds of civilization. He knew the situation of this technology, and when he combined the existing technologies on the earth, he could see the current situation at a glance.

…

The Fuyun Group Research Institute in Yuanyuan Town is a scientific research institute that covers an extremely vast area. It has a quiet environment, fresh air, and pleasant climate. Research institutes, laboratories, villas, etc. are surrounded by mountains and rivers, among dense forests. Faintly visible.

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

Of course, Duan Guang is not known to the outside world. Like many outstanding scientists in the Fuyun Group Research Institute, the company has not disclosed many technologies to the outside world 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 have their bodies and brains nourished by Yuanli. Their scientific research is far beyond what ordinary scientists can compare with. Their learning ability is very strong. The key is strong understanding and brain. Active, with good physical fitness, he can learn and research faster than expected.

Fuyun Group is what it is today because of nothing else but the hundreds of thousands of outstanding scientists in its hands. Any one of them is considered a top scientist in the outside world. There are many technologies that have not been announced. Enough to shock the world, anti-gravity technology, genetic recombination technology, energy weapon technology, etc.

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

Duan Guang, who was wearing a white coat, saw Li Fu walking into his laboratory and hurried over to greet him. Li Fu basically knew all the scientists in the entire 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 and discuss the progress of research and so on.

Of course, these technology giants can be respectful to Li Fu. What Li Fu relies on is not his status as a boss. Scientists are a group of proud people. Many of them don't care about power or money. What can really make them respectful is They are better than them in the field they are best at.

Li Fu was able to have a lively relationship with scientists in various laboratories and scientific research fields precisely because Li Fu could tell a story in various fields of science and technology, and even many problems that everyone encountered, Li Fu could He pointed it 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 a little irritable recently, so I came here to take a look."

Li Fu and Duan Guang were also very familiar with each other, so they were very casual and without any airs. The other scientists around them also looked over at this time. Many of them were new to the institute and did not know Li Fu yet. When I saw Li Fu, I was also very excited.

"The boss has no airs at all."

"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 with a major in biomedicine. Does he also know about quantum communication?"

"Hehe, not only in the field of quantum communication, there seems to be no one who doesn't know about it, Brother Fu."

"..."

The people on the side murmured, and with Li Fu's cultivation, he could hear it clearly, but they didn't pay any attention to it. This kind of thing didn't happen once or twice.

"In the past few months, there has been no progress in research, and I'm really annoyed."

After hearing Li Fu's words, Duan Guang also rubbed his head and said with some helplessness that the most fearful thing about scientific research 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 been researching in a certain field for a lifetime without any results.

This does not mean that this scientist is not outstanding or good enough. It can only mean that after falling into a bottleneck period, if you want to make further progress, you need a flash of inspiration or a sudden epiphany. Otherwise, the already boring research will become dull. It becomes more irritating.

The most uncomfortable thing is not being able to see hope or the future. Light is almost like this 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 still couldn't see any progress.

"Tell me?"

Li Fu nodded to express his understanding. This is like doing a math problem. When you encounter a difficult math problem and 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, crumpling it into balls, etc. are all very common phenomena.

“At present, we have been able to achieve transmission within tens of thousands of kilometers, but the energy consumption is still very high, errors occur frequently, and special channels need to be established. These are not big problems, but in recent months, we have struggled with communication distance, etc. There is no progress in all aspects, it is impossible to increase the distance, nor to reduce the energy consumption, etc. "

Duan Guang grabbed his hair a few times with some annoyance. Although he encountered various difficulties in the past, he always made progress and gave people hope. But now, there has been no progress for several months, and he has become very... irritable.

"A range of tens of thousands of kilometers?"

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

Even across countless galaxies, river systems, etc., quantum communication technology can achieve ultra-long-distance real-time communication. This is quantum communication technology. Current quantum communication technology is not even comparable to traditional electromagnetic wave communication technology. Ten thousand kilometers seems like a large range, but it is far from enough even in the solar system, let alone the vast universe.

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