At the beginning of August,

It's already hot to the point of collapse, some boring people are hungry, go to the supermarket to buy two eggs, find a manhole cover on the road, and fry a poached egg by the temperature of the manhole cover.

But

He didn't dare to do this, for fear of being beaten to death by Xiao Man.

"Huh?"

"Anyway, haven't you had anything to do lately?" Yang Xiaoman was dressing and pants, glanced at Xu Mang, who was lying on the bed, and asked curiously, "If there is nothing wrong... Why don't you go to my company and stay. ”

"Who said that?"

"I'm going to work on quantum computers today. Xu Mang said dissatisfiedly: "I'm quite busy." ”

"Cut!"

"Where you work is not work. Yang Xiaoman glanced at him: "You have an office in my company, and I specially arranged it for you, after all, you are the director of our company's technical consultant... Speaking of the director, when will you go to see the company?"

Majordomo?

The word...

"Technical consultant is technical consultant, why add a director in the back?" Xu Mang looked at Xiao Man's beautiful and plain makeup, and said helplessly: "I'll go to the company... Will it cause a strong reaction, after all, your company has a lot of female employees, and I am so handsome..."

Yang Xiaoman: (* ̄〈 ̄)

Gassy!

This big idiot wants to kill him!

"Don't talk nonsense!"

"Hurry up and get up... Accompany my wife to work. Yang Xiaoman tried to drag Xu Mang, but the whole person threw himself into Xu Mang's arms in the next second.

Xu Mang looked at Xiao Man and asked cautiously, "Can you eat for an hour and a half?"

“...”

"Big fool... This..."Yang Xiaoman's handsome little face was covered with crimson, lowered his head and squeaked and said: "In principle, it is possible... But... Who made me the boss? ”

"Hey, hey, hey!"

Come to ten o'clock in the morning,

Xu Mang brought Xiaoman to the company, and today he will also start working here, the main direction is quantum computer research, first make a high-quality paper out, and then talk about the rest.

For Xu Mang's arrival,

The whole company is very excited, especially those single women, although everyone knows that Professor Xu is Manager Yang's husband, but I heard that it is just an engagement, so well... There's an opportunity for all.

pity

Many people far underestimate Xu Mang's straight male personality.

Since he walked into the office, Xu Mang has never come out again, even lunch is brought by Xiao Man, not that Xu Mang loves work so much, it's just that he was trapped by the countless checkpoints in front of him, and he didn't even have a chance to breathe.

In fact

The field of quantum computers appeared in front of the eyes of the world very early, and dominating the standard has become one of the most important scientific problems in the field of quantum computing. But there is no such strength.

Long before Google and IBM, Hua Guo used the Tianhe supercomputer to solve the core problem of the Boson sampling problem, the product sum solution, which is a quantum supremacy test for photonic systems.

then

The conclusion is that as long as the quantum computer exceeds the Tianhe time, the so-called quantum supremacy is achieved.

"Ugh..."

"Is this quantum supremacy?" Xu Mang is now uncertain about this definition, after all, it was called out by the ghost, according to common sense, what Google has achieved is not the so-called quantum supremacy, in layman's terms... Quantum computers have an unprecedented advantage on some specific problems, nothing more ...

The ghost guy plus the media spread it through propaganda, and it was really bad...

Re-opening the paper published by Google, Xu Manzai carefully read it again, trying to get some other clues from it, but unfortunately... Because there was so little content, Xu Mang couldn't find any clues at all.

However, in another paper published in Science, Xu Mang found the clue he was looking for, a comprehensive benchmark data of the chip, according to the paper, the overall single-bit quantum gate and two-bit quantum gate operation fidelity can reach more than 99%.

The threshold at which surface coding error correction has been almost reached... And these quantum gate errors are mainly discrete, local Pauli errors.

Although the result is not said,

But Xu Mang, with his understanding of quantum, can guess the final answer, in fact, these errors can be eliminated by using quantum error correction algorithms.

"It's so hard!"

"I'm special..."Xu Mang's scalp is numb, but he can't do it without research... With Google's realization of pseudo-quantum hegemony, it will inevitably affect the research strategies of domestic research organizations and companies in various related fields, and even affect the layout of national quantum technology development.

must follow,

You have to follow it head-on, otherwise it will be pulled farther and farther, and this thing is technology... Once it is pulled apart, the resulting distance cannot be made up in a few years.

Bang bang bang,

There was a knock at the door, interrupting Xu Mang's endless sorrow.

"Who?"

"Me!"

"Oh..."

moment

Yang Xiaoman walked into Xu Mang's office with a thermos cup, silently locked the door, and said to Xu Mang, who looked confused: "Stupid... This is the kidney tea I just brewed for you, I quickly drank it, and after drinking it, I was motivated again in the evening. ”

Xu Mang: ???

it!

This is a female demon, right?

Do you want people to live?

Looking at the thermos cup in front of him, he glanced at Xiao Man with an expectant face, Xu Mang could only take a sip, and couldn't help but burp after drinking.

"Please get out... I still have to work. Xu Mang said with a serious look.

But Yang Xiaoman didn't seem to be affected, but walked to Xu Mang's side with a look of love and fell down... Fortunately, Xu Mang reacted quickly, and with the help of the pulley under the chair, he avoided Xiao Man's touch.

"Oops!"

Yang Xiaoman lay on the ground and looked at Xu Mang angrily, his eyes were full of murderous energy.

"Let's go!"

"I still have a lot of work to do. "Xu Mang's forehead is engraved with the two big words 'unyielding'.

ultimately

Xiao Man scolded and left the office.

"Whew..."

"It's safe!" Xu Mang took a long breath and sorted out his thoughts, Xu Mang returned to the problem, who thought that writing a paper was very simple, who would have thought that he still had no clue, and he didn't know what he was going to do.

Then

The phone rang,

The ringtone was replaced with "Tactical Back".

"Hello?"

"What's wrong?" Xu Mang received a call from Chen Xi.

"Brother Xu?"

"I heard that you played WOW before?" Chen Xi smiled: "Do you want to play nostalgic clothes? The author who owes more than a hundred chapters is also playing, and the two of us went to scold him, not to update it well, and even play the game..."

"Forget it... There was no time. Xu Mang said indifferently: "When will you come to the magic capital?"

"Huh?"

"Uh... At the end of August. Tatsuki said, "That's right... Brother Xu Mang, there is one thing you can help me analyze and analyze?"

"Say!"

"It's just... You have been with Sister Xiaoman for so long, have you ever felt disgusted with her?" Chen Xi asked cautiously, "You should understand what I mean." ”

Xu Mang probably knew that this kid was taking vaccinations to prepare for the future, in case he broke up with Guo Tianmei, to avoid causing a huge impact, but... He had clearly found the wrong person and asked someone he shouldn't have asked.

"How?"

"Is Guo Tianmei bad?" asked Xu Mang.

"I..."

"This..."Chen Xi sighed and said helplessly: "Brother Xu Mang... To tell you the truth, I can't stand it anymore, Tianmei's desire to control is too strong, she hardly forbids me to talk to other strange women, before... She wasn't like that before, but lately this trend has become stronger. ”

Xu Mang's brows furrowed, and he said indifferently: "Don't ask me this kind of question... Ask me to break up, or... Talk to your little man, who claims to be an emotional expert, and may give you the answer you want. ”

"Huh?"

"Count... Forget it. Tatsuki said fearfully, "I'll observe and observe." ”

Words fall,

Hung up directly.

Xu Mang was lying on the chair, looking at the ceiling above his head, the emotions between urban men and women were really complicated.

Fortunately, Xiaoman is relatively simple.

But... Is she really innocent?

"Quantum supremacy..."

Xu Mang's eyes returned to the front of the display, and after a fierce ideological battle, Xu Mang finally made up his mind to write an article about the shortcomings of Google's quantum supremacy, especially what it was currently showing.

In Xu's eyes, Google's algorithm to demonstrate quantum supremacy is meaningless, it does not solve, and does not intend to solve any problems at all, but its purpose is to demonstrate the potential of quantum computing.

And...

The most important thing is that Xu Mang found that Google still uses the concept of physical bits, and if Google is asked to solve the Shure algorithm, Google's so-called quantum supremacy is simply impossible.

Right!

That's it!

Logical qubits.

...

Magic City,

In a small area.

Xia Qing, the head of the Department of Computer Science at Fudan University, was calling a friend, who had some background, he was the deputy director of the Supercomputer Center of the Academy of Sciences, and graduated from the same school as Xia Qing, and this deputy director was Xia Qing's senior brother.

"Senior brother..."

"Your candidate for the director of the Quantum Computer Laboratory... Is there any list?" asked Xia Qing.

"How?"

"Do you have this plan?" said Senior Brother Xia Qing with a smile.

Xia Qing smiled bitterly: "I asked for someone else." ”

"Who?"

"Can anyone still please touch you?" Senior Brother Xia Qing became interested and said with a smile.

"Xu Mang!"

"Deputy Head of the Department of Physics at our school, Professor of Theoretical Physics. Xia Qing said solemnly: "Professor Xu Mang really wants to do this project, and... He has experience in R&D, and he has developed the materials science database that is currently being vigorously promoted across the country, including a series of supporting software. ”

"At the same time, it is also the Modu Computer Security Competition... Forget it, it's a small honor. Xia Qing said, "What do you think?"

"Xu Mang?"

Senior Brother Xia Qing fell into silence and said seriously, "Xia Qing... To tell you the truth, Xu Mang is on the list of candidates, but... He is relatively backward, the first few have experience in quantum computers, and Xu Mang has nothing... He is at most a reference material. ”

This...

What to do?

Xia Qing was helpless for a while, the reality was so cruel.

"Xia Qing..."

"It is almost impossible for Xu Mang to be selected. Senior Brother Xia Qing said: "He doesn't have any experience and related experience, and he won't consider him." ”

"Hmm..."

Hang up the phone,

Xia Qing was very uncomfortable, as long as he lived up to Xu Mang's expectations of himself.

After thinking about it for a long time,

Xia Qing decided to inform him, there was no need to hide this kind of thing.

The phone went through...

"Hello?"

"Xu Mang... Bad news for you. Xia Qing said helplessly: "It is almost impossible for you to be selected as the director of the quantum computer laboratory. ”

......