There was an eerie silence on the other end of the line.

It was as if there was no signal, and there was no sound for a while.

However, just when Lu Zhou hesitated for a moment, ready to remind Director Li on the other side of the phone that he was still on the phone, then there was a sound from Duang on the other end of the phone, as if something had fallen on the table.

Soon the phone was hastily picked up from the coffee table.

"What are you doing, Lao Liu—"

"What do you say? The Problem of Topological Quantum Computing Solved? What's the problem? How do you deal with decoherence? And the Hall effect—"

Listening to the excited and unfamiliar voice on the other end of the phone, Lu Zhou was slightly stunned, frowned and asked.

"You are?"

The cannon-like voice froze slightly.

After taking a deep breath, it calmed down.

"I am Liu Changqing from the Institute of Semiconductors of the Chinese Academy of Sciences! If it is convenient, please ask Academician Lu to answer for me. ”

Academician Liu.

Hearing this name, Lu Zhou thought for a while, and a sudden expression appeared on his face.

Deputy Director of the Institute of Semiconductors, Chinese Academy of Sciences, Director of the IC Design Center, Leader of the National Key Special Project of "Quantum Control and Quantum Information", and one of the participating experts of the Longteng series of chips.

He had heard Professor Wu Tianqun talk about this name a few times before, although he had never seen it, but it was said that he was also a great bull in the domestic semiconductor industry, so it seemed that there was no problem with him.

“…… To put it simply, through a special model insulator material containing Majorana fermions, I can be regarded as solving the problem of unstable qubit entanglement states. ”

"Wait, what did you mean by detail? I know the properties of Majorana fermions, but for the time being, how did you find them in the material that contains the model's insulator...... How's that, solved? ”

The voice on the other end of the phone was already incoherent.

Hearing this series of questions, Lu Zhou sighed with a little headache and said concisely.

"It's too troublesome to talk on the phone, if you're interested, come directly to Jinling."

……

Lu Zhou didn't expect that this academician Liu was so efficient that he rushed from Shangjing to Jinling the next day.

At the same time, it is not only Academician Liu who came here, but also Director Li, as well as experts engaged in quantum computer research from the Institute of Semiconductors of the Chinese Academy of Sciences.

Facing the eager gaze of a group of people, Lu Zhou smiled and didn't say anything, and led them to a multimedia screening room, where he stood in front of a whiteboard.

“…… Before we get started, let's first clarify a basic concept. The topological properties of matter do not change by continuous stretching or bending, unless torn or connected to a new place. ”

Academician Liu pushed his glasses and said with a solemn expression.

"We all know that...... And then what? ”

The same applies to quantum mechanics...... Of course, these are very basic things, but what is not basic is how we use this series of properties to achieve the results we want. ”

As he spoke, Lu Zhou turned around, picked up the electronic pen and waved it twice casually on the whiteboard, and the six-grid-like lines seemed to grow from the white panel, and were directly printed on the whiteboard.

Looking at the sci-fi scene in front of them, including Academician Liu, a group of experts from the Chinese Academy of Sciences all showed surprised expressions on their faces.

Noticing the expressions on their faces, Lu Zhou smiled and said.

"It's a gadget I made up in my spare time, mainly to make it easier for me to use my own boards...... After all, many things in physics are different from mathematics, and many things don't seem so intuitive, and a handy board book tool can at least save me time with a ruler and a board eraser. ”

In fact, there is nothing special about this thing, it is just a whiteboard with touch and imaging functions, plus a smart camera with motion recognition. Something similar appeared in MIT classrooms a long time ago, but it wasn't as versatile and flexible as his one.

"Let's get back to our previous topic." The electronic pen in his hand tapped lightly on the whiteboard, and Lu Zhou continued, "The key to solving the problem of quantum computing lies in how to overcome the interference of environmental noise on subatoms and prevent qubits from collapsing in environmental disturbances. ”

The moment the words fell, he waved the electronic pen in his hand.

I saw that the electronic pen was like a baton, and under its command, rows of neat black dots quickly appeared on the whiteboard covered by the six grids.

These black dots represent subatomic particles, orbiting in an invisible circular orbit with uniform velocity.

Seeing everyone in the audience staring intently at the whiteboard,

“…… This quantum system is naturally immune decoherent and can accurately execute preset algorithms. ”

"With all that said, I'd better just demonstrate it......"

As he spoke, Lu Zhou waved his hand towards the door, and a drone swayed over, resting a small box firmly in his hand.

Shaking the box in his hand, Lu Zhou gently placed it on the table.

"It's a simple scientific calculator that can only do one kind of operation according to my pre-compiled program...... By the way, did any of you bring a computer? ”

I don't know what kind of medicine Lu Zhou sells in his stomach, Academician Liu hesitated for a moment, nodded and said.

"I brought it."

"Very well, then I'll give it to you."

As he spoke, Lu Zhou returned the small box to the drone, and then motioned for the drone to fly in front of Academician Liu and put the small box on his desk.

After picking up the small box and taking a look at it, Academician Liu was surprised to find that there was actually a 10-key numeric keypad and a simple display screen.

It's like a small calculator, except that there are no addition, subtraction, multiplication and division symbols, an extra confirmation button, and I don't know what it's for.

At this time, Lu Zhou continued to speak.

“…… We all know that it takes 0.3 seconds or less for a traditional computer to generate a 1024-bit prime, and 0.6 seconds for two, which is negligibly fast to multiply both. ”

"But if you take apart the product of two large prime numbers, the same computer may not be able to do it in three days and three nights."

At the moment when these words fell, the classroom resounded with the sound of commotion.

Many people's faces showed a hint of surprise and even shock.

Looking at Academician Liu, who seemed to have guessed something, Lu Zhou smiled and made a gesture of please.

"Now you can use your computer to randomly generate two random ...... of any size It is best to find prime numbers with more than 1024 digits and then find their product. ”

"I'm sure it's going to be easy for you."

"Finally, I want you to enter that product into this box, and soon we will witness a miracle."

The Adam's apple moved, and Academician Liu's trembling voice was full of excitement.

"Could it be—"

Looking at Academician Liu, whose surprise had begun to appear on his face, Lu Zhou didn't speak, just smiled and nodded.

"You'll find out if you give it a try."

Or the complex mood of believing doubt and excitement, Academician Liu quickly generated two large prime numbers of more than 1024 digits with his computer according to what Lu Zhou said, and tirelessly entered their products into this pocket calculator.

Other experts from the Chinese Academy of Sciences, as well as Director Li, stood behind him, watching him continue the experiment.

After all, it is a number of more than 2,000 people, and the work of entering it took a long time.

When Academician Liu finally finished all this and pressed the confirmation button, a miracle happened in an instant!

There is not the slightest bit of stuckness.

As if by doing a simple addition and subtraction, the product of this large prime number is quickly disassembled and divided into two prime factors.

Looking at the numbers that appeared on the display screen, not only Academician Liu, but almost all the people around him made surprised sounds.

Moment!

This problem, which would have taken days to solve for a traditional computer, was solved in less than a second!

Academician Liu's eyes widened completely, his mouth opened and closed, and he completely lost his words.

Before coming here, he originally thought that the solution to the problem of the collapse of qubit entanglement states mentioned by Lu Zhou was only a theoretical solution.

Unexpectedly, when he was still confused about the theoretical part, not only the theory, but also the specific samples of Academician Lu were made.

It was not only the experts from the Chinese Academy of Sciences who were shocked, but also Director Li, who was standing by and watching.

What kind of changes this technology will bring to the world, he is in shock, and he no longer has the leisure time to think.

The only thing he knew right now was one thing.

The RSA encryption rules, which have been used for at least half a century, can be completely withdrawn from the stage of history from today......

Lamp pen