In the quantum communication laboratory, Duan Guang and Li Fu carefully discussed some problems encountered in quantum communication technology, and other scientists around them also interjected a few sentences from time to time, putting forward some of their own opinions, sometimes it is better to have ideas than no ideas, even if this idea seems ridiculous.

"We've done a lot of experiments, but they still haven't worked, and we've even done joint research with other labs, but now there's no progress."

Next to Duan Guang, Pan Feng, a top scientist who is also in the field of quantum communication, also looked very irritable, the days without progress were the most uncomfortable, and the key now was that there were no new ideas.

Li Fu frowned, thinking quickly in his mind, and chatted for more than half an hour, Li Fu already had a rough idea of their current progress, research ideas and methods, and had already figured out why they fell into a bottleneck period without the slightest progress.

"In fact, we might as well put aside all the current research results and ideas, and assume that we are now starting from scratch to study quantum communication technology, what will we do?"

Li Fu thought about it and asked, Li Fu said that this kind of thinking and method is often used in scientific research, so everyone is no stranger, sometimes when we encounter a problem, we never get the answer, we will completely abandon the original solution idea, and solve it with another way of thinking.

"We've tried it a lot, but it didn't work."

Duan Guang shook his head, the team he led didn't try to start over, but every time they ended up walking on the old path ahead, and in the end they still did useless work.

"Let's first talk about the principle of quantum communication, quantum communication is a new technology based on quantum entanglement state to achieve communication, that is to say, the root of this technology is quantum entanglement."

Li Fu smiled and continued to speak, these things he said are naturally clear to these scientists around him, dealing with quantum communication technology every day, these most basic things are naturally clear.

"So let's talk about quantum entanglement, we can very popularly compare quantum entanglement to a pair of brothers, but this pair of brothers is a bit special, their every move is exactly the same, no matter which one reacts to anything, the other will react accordingly, quantum communication technology is based on this most basic principle."

Everyone stopped their work, gathered around Li Fu, and listened carefully to Li Fu's speech, everyone knew that Li Fu's lectures were not much, and the opportunity was rare, and they might be able to gain a lot from it.

"Quantum communication technology can now be understood in this way, we separate the twin brothers, that is, two terminals, and then we can transmit information by manipulating one of the brothers, and the other brother will respond accordingly, so that the information can be transmitted."

Li Fu's analogy is very easy to understand, even people who don't understand quantum communication at all can understand it, not to mention that everyone present nodded one after another.

"So we can now divide the problem encountered in the research process of quantum communication technology into two parts, one is how to separate the two brothers, and the other is how to manipulate the brothers and let them install the way we need to convey information."

"Now that we've reached a bottleneck, let's think about the fundamentals of this technology, and then think carefully about whether the work we're doing now is useful."

"Quantum communication technology is essentially two, one is to separate the two brothers, and the other is to manipulate the two brothers in order to realize the transmission of information."

Li Fu expressed the fundamental principles of quantum communication technology in easy-to-understand language.

"Separate, control!"

Duan Guang thought carefully about what Li Fu said in his mind, and suddenly felt that the mouth suddenly opened, and the ideas were springing up like a spring, he felt that he had no way to start before, but now he suddenly felt that there were many ideas to try.

"Yes, we seem to have gone astray now, in fact, in essence, quantum communication does not need to establish any channels at all, we only need to control this pair of strange brothers at both ends, and there is no connection between the two ends at all, even in terms of energy, matter, and distance."

"Now we are still thinking about whether this channel is unstable, how to reduce the sensitivity of the channel, etc., these are actually completely unnecessary and are a waste of time."

Pan Feng also suddenly realized, with a smile on his face, as if he had figured out some problems and key points.

"That's right, in fact, we can understand it very simply, we use two cages to separate the two brothers, because of the particularity between the two brothers, so even if they are far apart, we can also transmit information in real time by controlling the two brothers, regardless of distance and time."

Duan Guang also smiled at this time, the sadness on his face disappeared all of a sudden, and he suddenly felt that there were many, many ideas that he wanted to carry out experiments immediately to confirm.

Then Duan Guang and Pan Feng and others began to have a fierce discussion, one by one, ideas emerged, one idea after another was constantly proposed, and they were constantly discussing with each other, Li Fu on the side saw such a scene and smiled slightly, he had seen such a scene many times.

Li Fu essentially explains and analyzes a problem, and scientists can benefit a lot from it, and sometimes they are excited, so they will naturally find someone to explain their thoughts and ideas, and it is normal for them to have heated discussions with each other.

"We've always experimented with light quanta (photons), because this photon is the most basic quantum that we can easily obtain, but that's why we want to build a special channel, which essentially doesn't require any channel for quantum communication, so we're going astray at this point."

"But if we don't build channels, how can we achieve quantum communication, and the characteristics of photons are that they have zero mass when they are at rest, and they have energy, momentum, and mass when they move at the speed of light, and at the same time they can transmit electromagnetic interactions to each other, which are the easiest to obtain basic quantum now."

"We should think like this, we can't give the most essential thing for the sake of quantum communication, which is like drinking water to quench thirst, although we have temporarily achieved quantum teleportation, but this also limits the future development prospects of quantum communication technology, we should abandon this idea and method from the beginning."

"Back to the essence, what we should be trying to do is how to separate the two brothers who are entangled with each other, and then figure out how to control the two brothers, which is the right way."

"Yes, let's talk about how to separate the entangled brothers, and I think we should first think about what kind of methods and ways we can save them."

"But how should the photons be separated?"

"Why do you have to choose photons, there are many kinds of basic particles, we can choose a lot, not necessarily limited to photons."

“……”

The more people discuss, the more ideas there are, and many things actually need someone to give an inspiration, and give a point in the key place, and suddenly they will be enlightened and enlightened, and all the troubled problems will be solved quickly.

The more everyone discussed, the more excited they became, and soon, Duan Guang, Pan Feng and others hurriedly ran to the experiment, leaving Li Fu aside, they were now full of passion, their hearts were already boiling, there were countless experiments and ideas that were about to be confirmed one by one, and there was no time to pay attention to Li Fu.

"Finally discussed the key point, it is estimated that it will not be long before they can get the quantum communication technology out, and then they will no longer have to worry about the long distance, and they can also contact the earth in real time when they go to another galaxy in the future, and this conquest of the sea of stars will add another sharp weapon."

Li Fu touched his chin and walked out of the quantum research laboratory, it was no longer interesting to stay, Duan Guang, Pan Feng and others had no time to pay attention to themselves, but this time Li Fu's purpose was also achieved.

Quantum communication technology is very critical, because this is an indispensable thing for interstellar and cosmic navigation, without powerful communication technology, in the universe of light years, traditional communication technology is really unable to keep up with the development needs of the times.

Just like the Age of Discovery, before the advent of electromagnetic communication technology, the control of those powerful colonial powers over colonies around the world was actually very loose, and often there were uprisings and riots in a colonial area, etc., which generally took a few months before they could be transmitted back to the mainland, and then it took several months to react.

If the European colonists did not rely on the technological superiority of giant ships and cannons, they would not have been able to rule a huge colony at all, and they could rule a large number of colonies with a small number of troops and force.

Therefore, at that time, the European colonizers' support for science and technology was unprecedented, they longed to have more advanced giant ships, more powerful cannons, hoped that their ships could run faster, and of course, they hoped that they could grasp the basic situation of the world's colonies in real time, so as to better carry out colonial rule.

Until the birth of electromagnetic communication technology, the European colonists were ecstatic, and they no longer had to worry about the problem of communication, and their control over the colonies was naturally much stronger.

PS: Ask for tickets, all kinds of requests!