my tech museum

Chapter 165 Controlling 400 Qubits
"According to the research opinion given by you, Dean, we have successfully developed a metal composite material with special properties, which can isolate the influence of external radiation to the greatest extent."

"The environment inside this material is very stable by testing."

"It will not be disturbed by any factors."

Thursday, June 2022, 8.

Qixi Festival.

Quantum computer laboratory in the data center of Longfor High-tech Park.

Gu Sanlin pointed to the gray barrel-shaped shell in front of him, and introduced its specific situation to Xu Lei.

From the confidence in his words and the confidence on his face, it can be seen that Gu Sanlin is very confident in the results of this experiment, which can help the quantum computer project achieve great progress.

Speaking of which, after Gu Sanlin became a member of the project team and understood the material requirements of quantum computers, he planned to continue researching on the basis of the previous special polymer materials.

But after in-depth communication with Xu Lei, he resolutely abolished the previous plan.

Lead the team to study a new composite material.

In the past few months, after all the members worked overtime to pass the Xingtong verification of the feasibility, they finally came up with some results.

Did not live up to Xu Lei's trust.

Xu Lei looked at the barrel-shaped shell at this time, and his nervous mood suddenly relaxed a lot.

Knowing today's assembly test shouldn't be a problem.

After all, Gu Sanlin dared to say that, he must have strong confidence in this material.

However, it is worth mentioning that Gu Sanlin's rapid progress in the field of materials is not only indispensable for Xu Lei's guidance, but more importantly, Xu Lei corrected their wrong route through Xingtong during the development process.

Otherwise, it is absolutely impossible to go so smoothly.

There are too many major quantum computer design industries, and it is impossible for Xu Leifan to do it himself.

Using Xingtong to point out the research direction to other members of the project team will undoubtedly allow this real quantum computer to be manufactured faster.

"very good."

"Then replace it with an actual test."

Knowing the details of the shell made of special metal composite materials in front of him, Xu Lei had nothing to hesitate. After listening to Gu Sanlin's detailed report, he immediately made a decision.

In the past few months, a dilution refrigerator that does not require liquid helium to assist cooling has been produced, which can ensure that the environment where the superconducting quantum chip is located is close to absolute zero.

And can run stably and continuously.

In addition, everyone has continued to optimize it to solve the small problems that occurred during the operation, and it already has the level of a quantum computer.

heard.

Yuan Zhi, Xiao Chengyong and others next to him were also excited and hurriedly urged: "After waiting for so long, today I can finally take this important step."

"Whether our superconducting quantum computer can succeed or not, Lao Gu's special material is very important."

"You'll know if it's a mule or a horse."

Seeing that the pressure fell on him right now, Gu Sanlin immediately agreed with a smile.

"You will be surprised later."

"This is a composite material specially researched by the dean based on the characteristics of the quantum computer. Naturally, there is no possibility of problems."

Still maintain enough self-confidence, no stage fright.

After all, his confidence comes from Xu Lei.

Followed by.

I saw the project personnel opened the refrigeration system and took out the core components inside.

Since the ultra-low temperature control chip and the superconducting quantum chip are already in place, they are naturally installed on the core components at this time. After completing these steps and reassembling with the shell made by Gu Sanlin's team, the next step is to enter the exciting stage. testing session.

Test whether there is still noise influence inside the system during operation, and the stability of the quantum state.

of course.

Xu Lei is optimistic about this result.

After all, before carrying out this operation, the project team has already carried out simulation verification with the help of Xingtong.

The final data obtained is fully in line with the normal operation requirements of quantum computers.

Therefore, Xu Lei did not wait for the test results with peace of mind after completing the assembly, but continued to develop quantum algorithms and quantum operating systems.

Like ordinary computers, if quantum chip refrigeration systems are hardware, then quantum algorithms and quantum operating systems are software.

Both are equally important for quantum computers.

It must be worked out to be regarded as a real quantum computer.

As for other hardware devices of quantum computers, such as quantum memory transistors and quantum reversible gates, they are also stored in a low-temperature environment.

During the period of waiting for the chip to be in place and the special metal composite material, Yuan Zhi and Xiao Chengyong were mainly responsible for these components.

Xu Lei has already drawn the model of the main quantum computer, which makes the hardware development process much easier. It's like taking an exam together but you get the answer in advance.

What's more, there is such a great god as Xu Lei sitting in charge.

I don't know how long ago.

I saw Yuan Zhi, Xiao Chengyong, Gu Sanlin and the others excitedly running to Xu Lei's place. As soon as they entered the door, they couldn't wait to shout: "Dean, we have succeeded. The microwave frequency magnetic field control field we built above the chip has realized spins of up to 400 million qubits."

When he yelled this sentence, Yuan Zhi's voice was trembling, trembling with excitement for the realization of quantum computer breakthroughs.

The voice just fell.

Before Xu Lei could speak, Xiao Chengyong couldn't help exclaiming: "This is simply unimaginable."

"And in addition to successfully controlling the spin of 400 million qubits, the quantum state is also very stable, which shows that our research line is correct."

Looking at the performance of several of them, although Xu Lei had already guessed the result, he was also happy in this atmosphere.

Normally the magnetic field falls off very quickly with distance, so only those qubits closest to the wire can be controlled.

This means that as more and more qubits are introduced, more wires need to be added, which will take up a lot of space on the chip, so the current research on quantum computers is still limited to controlling dozens or hundreds of qubits.

However, the Longfor Light Quantum Computer developed by Xu Lei solves the traditional circuit problem through the ultra-low temperature control chip. In addition to reducing the heat generated, it also frees up more space for the chip.

And through a magnetic field control field that transmits microwave frequencies throughout the system, with the help of special components, the microwave wavelength above the chip is reduced to less than one millimeter, thereby converting it into a magnetic field that controls all qubits.

So that Longhu Light can control up to 400 million qubit spins.

And because the magnetic field is so uniform across the chip, millions of qubits will have the same level of control.

It's just that the theoretical method seems simple, but in fact every small step takes a long time to develop and solve the problems.

That is to say, Xu Lei has mastered all the core technologies in his mind to turn them from theory into reality.

Otherwise, it would be so easy, and it would be impossible for global development to remain in its infancy for so many years.

Speaking of the exhibits collected in the Science and Technology Museum, that quantum computer can control tens of millions of qubits.

However, although the Light of Longhu can only reach 400 million, it is definitely an epoch-making physical device.

The birth of quantum mechanics has laid a solid foundation for the fourth industrial revolution of mankind in the future. On this basis, mankind has invented a new technology.

Namely quantum computers.

Now a quantum computer with up to 400 million qubits is about to be born in the Longfor High-tech Park. This achievement is absolutely unimaginable for all human beings.

The hardware problem has been solved, and the rest is the quantum algorithm and the quantum operating system.

This is related to error correction and whether quantum computers can be used as conveniently as traditional computers, and it will also be a time-consuming part.

Thinking of this, Xu Lei felt that it was necessary to calm them down.

After all, the revolution has not yet succeeded.

"Light of Longhu will become the world's first real quantum computer sooner or later, but right now we still have a lot to do."

"In the future, everyone's tasks will focus on the development of quantum algorithms and quantum operating systems."

As Xu Lei's voice fell, several people naturally realized what their problem was, and quickly adjusted their emotions and repeatedly promised.

"Don't worry Dean, we promise to fully develop quantum algorithms and quantum operating systems."

"The dean is right. It's just to create a quantum era. It's nothing to our future technology."

"I believe that everyone will be full of enthusiasm for the next task."

But just when Xu Lei rearranged the tasks and everyone was about to turn around and leave to give instructions, Yuan Zhi suddenly stopped in his tracks.

Seeing this, Xiao Chengyong and Gu Sanlin also showed some doubts in their eyes, wondering what else Yuan Zhi had to do.

Subconsciously, they stopped in their tracks.

Yuan Zhi didn't care about the performance of the other two, turned around and tentatively asked Xu Lei: "Dean, the Longfor Light project has made such a breakthrough, we want to announce the news to the outside world ?"

When these words reached Xiao Chengyong's ears, his eyes lit up and he echoed: "Yes, Dean, since we announced the research on quantum computers, the outside world has not been very optimistic about it. This time it just proves our strength in the quantum field. .”

After listening to what the two said, Xu Lei naturally understood what they meant.

The research results of Longfor Light will definitely be announced to the public in the future, proving that it has real quantum computing capabilities.

But now is not the time.

Although the news of controlling up to 400 million qubits is enough to drive the world into a frenzy, after all, the software has not yet been completed, and it has not reached the quantum computer state in Xu Lei's mind.

So without much thought, he waved his hands and said to the two of them, "There's no rush for this, it won't be too late to announce it after we actually realize quantum computing."

"I don't think this time should be too long, what do you think?"

　Recommend a new book of Seedlings, Hokage Tongrenwen, if you like it, you can read it.

　　


(End of this chapter)