Chapter 1179

After coming out of Jinling higher research institute, academician Liu felt that the whole person was like sleepwalking, and his head was in chaos.

After the physical demonstration, Lu Zhou then explained the application of topological quantum theory in the model insulator to the experts from the Chinese Academy of Sciences from the theoretical level, and how he realized the mayorana fermion through some basic carbon based integrated circuit elements and Josephson junction.

Objectively speaking, it is difficult to understand the complicated physical and mathematical formulas of his applied research.

However, although the formula accounts for more than 70% of the total, there are dynamic graphics for demonstration, so that they do not completely fail to understand the mystery.

Just after listening to this "new life" lesson, he felt that the world view he had spent decades building was almost completely refreshed.

It took less than one second to decompose the product of more than 1024 prime numbers, which at least shows that the calculator in his hand has at least 500 quantum bits.

However, this is not the most critical, the most critical is that this quantum computer is only the size of a palm! I don't know how much smaller than that quantum computer in Huake academy!

And if they compare horizontally, they get the best result, only 20 qubits

This is the latest achievement of this year.

In addition, what shocked him more than the box size quantum computer was academician Lu who stood on the stage and explained these theories to them.

Mathematics, physics, materials and integrated circuit design If it is further divided, the knowledge covered in this class can even be divided into more than ten branches of disciplines.

However, for the young man who is less than 30 years old, the profound and obscure knowledge is in his hands as easy to use as there is no obstacle.

If he hadn't seen it with his own eyes, he couldn't believe that someone in the world could be so good.

Maybe that's why he can overcome one world-class problem after another

Sitting in the car parked at the gate of the Research Institute, academician Liu suddenly sighed with emotion.

"I feel Maybe I need to go back to school and study again. "

Director Li's expression was calm.

After all, surprise comes from surprise. It's only for technology itself. As for those profound theories, he can't understand them anyway, so he didn't take them to heart at all.

Looking at academician Liu with a melancholy face, he said comfortingly.

“…… After all, it's academician Lu. His lessons are really difficult to understand. Don't take them too seriously. I'm sure you don't understand, even if other people come here to sit. "

"It's not a matter of not thinking about it," said academician Liu, shaking his head. "It's just that sometimes I really feel that I can't keep up with the times

"Although the topic of topological quantum computing is relatively new, someone in our institute is also doing it. The benchmark is the project of Microsoft's mayorana fermion. However, whether it's academician Pan's project, or our counterpart Microsoft's project, or Microsoft's own The quantum bits are always just about 20 or 30. "

As soon as he heard this, director Li could not help comforting him, and asked quickly.

"How much has Professor Lu accomplished?"

Academician Liu: "I forgot to ask how much, but in terms of the exhibition just now At least 500. "

500……

This is one order of magnitude higher!

There was a long silence in the car.

After a long time, director Li just returned to the quiet sigh.

“…… It's really scary. "

……

If we talk about the importance of technology itself, there is no doubt that the importance of quantum computer is far greater than that of carbon chip itself.

It can even be compared with controllable fusion technology.

According to the generally accepted view, the three pillars of modern science and technology are energy, information and materials, while quantum computer has basically stood at the top of the century's fantasy of future information technology and is expected to reach.

And it's not just that.

Most of all, the traditional encryption method is like being stripped off in front of quantum computers, without any defense at all.

It's also the scariest part of the technology.

As we all know, more than 90% of the security of modern information network depends on asymmetric public key encryption, and RSA encryption algorithm is the most widely used one.

Because the factorization of the product of large prime numbers has no fixed formula and only a unique solution, in principle, as long as the product of prime numbers used is large enough, it is basically equal to no solution, even if it is calculated by Professor Lu in his lifetime.

However, in the face of quantum computers, this kind of problem that needs hundreds of years to be solved for traditional computers can be solved only in seconds or even less than a second.Even if someone may say that the asymmetric public key encryption algorithm is not only RSA, but also elliptic curve encryption, ElGamal encryption and other schemes based on discrete logarithm

But in front of the computing power of quantum computers, what is it?

I'm afraid we can't even talk about the trouble.

After returning home in the evening, Lu Zhou, sitting at his desk, thought for a long time. Finally, he took out a letter paper and wrote on it with a pen.

【

…… The changes brought about by quantum computer in the field of communication technology will be subversive.

The encryption and decryption methods of communication technology have been in a state of dynamic balance, but now the breakthrough of topological quantum computing technology has broken the balance between attack and defense.

It only takes a few seconds to decrypt a traditional asymmetric public key encryption problem.

Once this technology is popularized, it will not only bring great development to our society, but also bring great security risks.

At present, we must establish a more strict and reliable encryption algorithm as a replacement of the original encryption method.

The quantum encryption algorithm similar to BB84 protocol is a good choice, but it still can't meet the needs of quantum computers with more than 1000 qubits.

In my opinion, quantum computer technology with more than 1000 qubits can be broken through in a short time.

Therefore, this new encryption rule must be more reliable than bb48 protocol, even beyond its improved BBM92.

Once we master this new encryption technology, it is the best time to promote the commercialization of quantum computers.

And then, we will have the information technology advantages that other countries can't match.

Just like controllable fusion technology, it has established the advantages for us in the field of energy.

]

stop writing. The boat looks for an envelope from the drawer, slips it in and throws it at the corner of the table.

Tomorrow when he goes to JINDA, he will throw it to Wang Peng and ask him to find someone to send it to Chang'an Street in Shangjing.

Although he felt that even if he didn't say anything, director Li would certainly report to the above, sometimes experts' opinions would be more effective and more likely to attract high-level attention.

Although these things are not something that a scholar needs to worry about, if he can, Lu Zhou still hopes that his research results can bring some positive effects to the world, rather than push it to a bad direction.

Although this may not be as exciting as research itself.

But it's part of the fun.