As the most critical theoretical basis in quantum computers, quantum entanglement research has made some progress in quantum entanglement research over the past few decades, but the existing theoretical basis makes the preparation of quantum entangled states very difficult.

What's more, it is impossible to break through under the current method, just like the car uses internal combustion engine technology, the speed can reach 200 kilometers, and in very special cases it may exceed 300 kilometers, but it is impossible to break through the speed of sound. So the hope of human beings breaking through the speed of sound must be different, on the one hand, from the ground to the sky, and on the other hand, a new power technology must be used.

On the basis of the existing theory, after a series of experiments, Duke proved the limit of the existing quantum entanglement research method through theoretical derivation, although this theory did not directly help to solve the preparation of quantum entanglement, but only proved that the current path could not be taken, but Duke applied some new hypothetical theories in the derivation, which immediately attracted the attention of experts in the field of quantum research.

Before everyone could understand Duke's difficult and obscure paper, Duke completed his theoretical preparation and proposed a new hypothesis of quantum entanglement in the project team, a new preparation method that was later widely known as "Duchenne entanglement", and began to develop from the Duke laboratory.

Thanks to the theoretical basis given by Billem, this new method proposed by Duke quickly achieved initial success, and the first successful preparation was quickly completed in the laboratory, and the world record for the preparation of entangled states was broken with extraordinary ease, achieving entanglement states of more than 100 ions!

The scientists in the research team almost couldn't believe their eyes when they first got this result, and they did the same experiment several times, all of which got the same results, before they were convinced that they had completed a new milestone in the history of quantum research.

However, just when they were about to name this new preparation method "Duchenne effect" and write a paper for publication, Duke asked everyone to keep it very secret, because this method is currently the only way to the practical application of quantum computing and quantum communication known to the world.

Although this is one of the most important discoveries in the history of quantum theory, it is fully qualified for a new Nobel Prize. However, this is like the principle of nuclear fission, if it is published, it will greatly shorten the time for the world to enter the quantum age.

Duke is not yet philanthropic enough to have the idea of world unity, so he has blocked the urge of the research team to make the theory public.

Duke's theory was originally a mature quantum theory, and after piercing this layer of window paper, the research team's subsequent research work was like a bamboo, and in a few months, it broke through from the entangled state of hundreds of ions to the real practical amount of data.

At the same time, the research group of quantum communication has also realized an ultra-long-range free-space quantum channel on the basis of Duke's theory, and successfully realized the world's first long-distance quantum teleportation of thousands of kilometers.

Now, although the core results of Duke's quantum research are highly secret, even some marginal results that have been leaked continue to shock the quantum science community, and the Duke Quantum Experimental Research Center has quickly become a frontier that has attracted the attention of world experts.

Of course, Duke was very happy to see the results of his various research groups, but soon Qin Tairan heard about it, but this time it was not only him who came to the door, but also brought an uninvited guest with him.

"Duke, congratulations on your breakthrough in the research field, come, let me introduce you, this is Li Keding, the general manager of China's aerospace family," after entering the Duke office, Qin Tairan introduced with a spring breeze on his face, although quantum research is basically supported by Duke taking money from SAL company, but nominally it is attached to AVIC's Shenlong plan, as a key special research project, domestic research experts are also deployed by Qin Tairan's hands, Therefore, Qin Tairan is naturally proud of Duke's achievements.

"The two of us came to the door today, mainly to discuss some things with you." Qin Tairan knew that Duke didn't like to beat around the bush, so after a brief introduction, he began to go straight to the point. "Lao Li, it's up to you to talk about the specific things."

"Dean Du, congratulations on your historic achievements in quantum research," although Li Keding is also a senior executive of a central enterprise who enjoys ministerial-level treatment, and his administrative level is one level higher than Duke's, he obviously understands his position very well in front of Duke, and his tone is very polite.

"Here's the thing, I know from Lao Qin that you have also made a breakthrough in quantum communication and achieved thousands of kilometers of transmission experiments, so I have an idea." Li Keding paused after a brief introduction of the cause and effect, like the progress of Duke's research results is now highly top secret, but Qin Tairan is obviously not in the restricted list, but Li Keding is not the subject of Duke's achievements, I don't know how Qin Tairan passed the news to him.

However, Duke knew that Qin Tairan was born in secret intelligence, so he naturally knew how to do it, so although it was a little strange, he didn't want to get to the bottom of it, "Mr. Li, you said" Duke said with a smile.

"We are wondering, as the best secure communication technology now, can you please give priority to quantum communication technology on satellite communication to realize," Li Keding said, "Although we now have the Beidou communication satellite system, but as a civilian acceptable, in the military, we are often interfered by some opponents, and at the same time, some secret things have happened." Although Li Keding's words were a little subtle, Duke, as the top expert in the IT industry, immediately understood.

Not to mention the Beidou system, even if it is a new wireless communication technology invented by him, although he racks his brains in terms of secrecy, and even uses a special language that no one can understand inside the codec engine, but because these things need to be transmitted through electromagnetic waves, it is inevitable that there will be the possibility of being intercepted by people, and then it will always be decrypted in the end, so that if the opponent is deliberate to monitor for a long time, there will always be loopholes for them to decipher something.

But quantum communication is completely different, because it is completely different from electromagnetic waves in the middle of transmission, and does not require the carrying and transmission of any carrier, and from one place to another, it is completely in an unmeasurable way on the earth to transmit information in the form of "super-space-time transmission", so the possibility of leakage between the two transmission devices is completely eliminated.

For satellite communications, it is obviously an extremely valuable feature to achieve near-absolute secrecy, because in order to realize the possibility of spreading information in a wide area, satellites always transmit information to a large area of space indiscriminately, and use traditional electromagnetic waves to transmit information, so it is inevitable to be monitored, compared with the regional wireless broadband propagation technology invented by Duke, because the opponent can continuously monitor and record, there is more data for supercomputers to analyze and calculate in terms of decipherment. Therefore, the possibility of loss of confidentiality is relatively greater.

Seeing that Duke understood a little, Li Keding said with a wry smile, "Frankly speaking, Dean Du, in fact, not long after the Beidou communication system was put into use, the encryption technology of the civilian part of our opening was completely deciphered by CIA experts, and the military encrypted communication part, although it has undergone more intense random encryption methods, often does not take long and will still be deciphered by the CIA."

Our aerospace department undertakes the task of the PLA's global communication support, but now the Beidou system is unable to ensure the confidentiality of military communication information, the Military Commission is very concerned about our progress in this regard, which makes our Chinese aerospace sector very much pressure, but the requirements of the Military Commission are also very realistic, now everyone knows that the PLA and the US military are in flames, for the domestic ground optical fiber communication system as the foundation, coupled with the new wireless broadband communication technology invented by Dean Du, it is good to say, But for the PLA going overseas, the inability to guarantee the security of communications is a very deadly threat. ”

After a brief account of the cause and effect, Duke realized that the matter was much more serious than he had imagined.

Imagine if a PLA aircraft carrier squadron were sailing in the Pacific Ocean or the Indian Ocean, and suddenly the command of the headquarters was completely interfered with and cut off by the US military, the consequences would be unimaginable. It can be said that if the secrecy and reliability of this long-range satellite communication are not resolved for a day, the PLA's large-scale overseas operations will always be on guard, and there will be great risks.

"I understand, Mr. Li, but our current research is still in the laboratory stage, and there is still a long way to go before it is truly mature." After listening to Li Keding's words, Duke nodded and said, "The environment on the satellite is a bit special compared to the ground, and it is even more difficult to achieve. ”

"I know it's very difficult," Li Keding said for a long time, in fact, he didn't want Duke to produce results now, it was really unrealistic, he had other plans. "We also know that this is not something that can be achieved overnight, so I discussed with Lao Qin and transferred a research team from us that is studying satellite communications to Dean Du and let him study it together, so that research and development can be carried out on both sides of the ground and the satellite at the same time, and the time for realizing quantum communication of satellites in the future will be shortened a lot."

So that's the case, Duke turned his head to look at Qin Tairan, and Lao Qin really nodded very seriously and said that this was indeed what he and Li Keding meant. It's just that Duke is personally grasping the quantum research, and although Qin Tairan agreed to cooperate with Li Keding's aerospace department, it will only be done with Duke's approval in the end, so Qin Tairan and Li Keding came hand in hand to discuss with Duke.

Being able to get two ministerial-level executives to come together to discuss the addition of a project, the world is estimated to mean that Duke has such a face.

Lao Qin gave face like this, and Duke had nothing to say, so he could only agree. This is probably a new "Duchenne effect".