I Don’t Want to Win Lying Down

After receiving Xia Qing's call, Xu Mang was sorting out his thesis. Facing the sudden news, Xu Mang was almost scared to death.

ah?

Why? Xu Mang asked incredulously, Why can't I become the director of the quantum computer laboratory?

Xia Qing, who was on the other side of the phone, said with a full face of apology: You... mainly because you have no relevant experience and experience. How could someone give such an important position to you directly? Do you think this is the reason?

Xu Mang:? ? ?

well?

This... this is so familiar!

Xu Mang asked cautiously, Director Xia...who did you find?

I?

I found my old senior, who is now the deputy director of the Supercomputer Center of the Chinese Academy of Sciences. Xia Qing said seriously, His words are more believable... I'm sorry... Xu Mang, this Something didn't work out for you.

...

Oh...hehe. Xu Mang smiled, and said calmly: I thought it was something, didn't it mean that I didn't have relevant experience and experience, this thing...is not available every minute, Director Xia, don't worry , it’s not really a big problem.”

Hearing Xu Mang's words,

Confusion was written all over Xia Qing's face, why... why does it feel like Xu Mang didn't take it seriously at all!

Is this the hell?

Xu Mang?

You...what's the matter with you? Xia Qing asked worriedly, I don't know how crazy you are as a director?

What's crazy... I'll tell you the truth. Xu Mang said calmly, I'm writing a thesis on quantum computers, and I'll finish it soon... By then, this thesis will become experience and experience. .”

Xia Qing was taken aback: You...are you kidding me?

I never joke about this kind of thing. Xu Mang said seriously, Don't worry...a small problem.

moment,

There was a silent voice on the other end of the phone.

...

Then work hard!

words fall,

The two cut off the phone call.

Looking at the hung up call interface, Xu Mang was silent for a long time, and then returned to the direct paper.

This article by Xu Mang is mainly about how important quantum error correction is. All current qubits have noise interference to some extent. This kind of noisy quantum computing unit is called a physical bit, and physical Bits are inherently flawed, making it impossible to achieve quantum computing with a high error rate.

The simplest is Schur's algorithm.

what to do?

Xu Mang's answer is very simple...Using quantum error correction, a large number of noisy physical bits are used to represent the information of a bit through an appropriate encoding form. This kind of qubit is also called a logical qubit.

pity...

There is a huge difficulty in this. There is a very important difference between the quantum world and the real world. Observation will lead to changes in the quantum state, forcing the quantum state to project onto the eigenstate of an operator related to the observation.

And this kind of change is irreversible. Once it happens...it can never go back, so some information will be completely lost.

And what Xu Mang wanted to solve... happened to be this problem.

what to do?

He found a lot of related papers, including those published by Google and IBM. These American institutions did not publish related papers, and kept quantum computing at the level of physical bits. So far... Xu Mang has become a blind.

he...

I can no longer cross the river by feeling the eagle sauce.

well...

No. 1 in the world... so it's not so easy to be. Xu Mang sighed. In the future, if Huaguo leads the United States in technology, it will encounter many similar problems and cannot see the road ahead. At present You can still cross the river by feeling the eagle sauce, what if there is no eagle sauce?

Could it be that this group of people... hid it on purpose? The more Xu Mang thought about it, the more he felt it was possible.

It is impossible that there are no related papers in the world, unless... the US National Defense Department hides the relevant content.

or...

find it?

Xu Mang's hands started to get a little dirty. He planned to use hacking techniques to find papers on quantum error correction, not to mention... After half an hour of hard work, he really found the coding method of quantum error correction, and There are many ways.

However, no matter what kind of scheme, there is a basic requirement for the error rate of a single physical bit, which is about one error in a million times.

The basic idea is to entangle one qubit with many other qubits, and then only look at those bits that do not contain information. Although no information can be measured, the measurement results can show parity changes.

no!

Xu Mang was very dissatisfied with these plans. Although CSS code and Shure code were classics, Xu Mang thought that these two codes were not easy to use.

Ouch!

Go to hell...

Xu Mang silently turned off his computer. At the thought of encoding quantum entanglement, Xu Mang's head exploded. It wasn't that he couldn't... but that he was worried about losing his hair. Not every bald head is Qi Teacher Yu, it may also be Nicholas Zhao Si.

lying down

Lying so still,

Xu Mang lay down until 4:30 in the afternoon, and then Xiaoman came to call him home with light steps...

...

Hello?

I mean, you won't lie down all afternoon, right? Yang Xiaoman was so angry that he saw Xu Mang's decadent look, and said, Aren't you working? Even in order not to affect your work, you even put your old lady I rushed out, why...why did you suddenly look like this?

Xu Mang sighed, and said calmly: Life is full of despair. You said that I finally came up with a solution to a problem. I just started writing for less than a minute, and found that there are countless problems behind the problem.

oops...

Then solve it slowly... my husband! Yang Xiaoman threw herself on Xu Mang with a smile. This time...Xu Mang's mind wandered off. Honey...I want a cat.

cat?

What kind of cat? Xu Mang asked curiously, Is it the Taibai cat who owes nothing?

no!

American silver tabby cat. Xiaoman said greasyly: It's very interesting...

Xu Mang frowned, and said cautiously, But...we already have a cat in our house... If we have another cat, what about the cat food?

Yang Xiaoman was stunned for a moment, and looked at Xu Mang with a confused face. At home...the house obviously didn't raise anything, so why did they raise a cat?

Does our family... have any animals? Xiaoman asked.

Yes, I have!

I raised a big tiger! Xu Mang said with a smile, It's still the mother's!

Yang Xiaoman: (*￣︿￣)

this...

Is this scolding my old lady for being a tigress?

Damn it!

Xu Mang!

You're getting more and more courageous! Yang Xiaoman glared at Xu Mang viciously: I'm very angry now, old lady, and the consequences are very serious. You can figure it out...how to solve it?

Xu Mang: (;′⌒`)

really,

To tell the truth will be beaten.

With his eyes fixed and his heart tensed, Xu Mang made up his mind and slowly moved towards Xiaoman's mouth...

(*￣3)(ε￣*)叫~

For three full minutes,

They were almost suffocated, and the two separated, but the flame had already been deeply buried in Xiaoman's heart.

night...

What to eat? Xu Mang asked.

I want to eat pizza... There is a very authentic pizza shop on the Bund. I heard that all the ovens for baking pizza are imported. Yang Xiaoman lay on Xu Mang's body and said lovingly: Today we Go out to eat...and watch a movie after eating.

oh...

Let's go!

...

half past six in the evening,

Xu Mang and Yang Xiaoman were holding the latest queue number. The couple who had just entered was number 60, while the number in Xu Mang's hand was number 378.

Yang Xiaoman was very angry, and he didn't know how to get the boss's number, so he even booked this pizza shop for a week.

spend...

Xu Mang didn't know how much money he spent, but he knew how much Xiaoman made a week. After all, this woman is amazing. She has mastered the most advanced photoresist adhesive formula in the world. Only Xiaoman can make it in the world, but basically Most of them are for their own use, and a small part is sold domestically.

However, this small part of domestic sales allowed Xiaoman's wealth to continue to accumulate on the Internet, and he has already squeezed into the top ten of the Huaguo Women's Rich List. This...is just photoresist material.

At this time, Xiaoman still held two technologies in his hands, which were not made public.

I'm furious!

It's rare to go out on a date...and there is no place to eat.

Pizza Hut,

Yang Xiaoman ate the durian pizza with anger written all over his face, but Xu Mang was miserable, he was about to be smoked to death, the durian smell was too strong.

Is it delicious? Xu Mang asked cautiously, Which bastard came up with the durian pizza...Kill him!

cut!

A big idiot who doesn't understand food. Yang Xiaoman rolled his eyes: Durian pizza is delicious...especially the pizza place we want to go to, they use the best Musang King in the world, That smell...

Xu Mang frowned. He prefers to eat pizza, but he doesn't like to eat durian pizza. In terms of food... Xu Mang is a very traditional person, and he admires purism. Pizza shouldn't be topped with such things. .

pizza,

It can only be made of fermented round bread covered with tomato sauce and cheese, and baked in an oven.

husband?

I'll give you some shreds. Yang Xiaoman took a piece of pizza, took a bite, and slowly pulled out several cheese shreds.

Xu Mang looked at Xiaoman's brushing movements with disdain on his face.

How silly!

Is this woman useless?

Aren't you... Xu Mang was about to cut a few words, when he looked at the stretched shredded cheese, Xu Mang suddenly stopped... Stupidly froze in place, looking at the piece in Xiaoman's hand pizza.

Yang Xiaoman:? ? ?

What's wrong?

Stupid all of a sudden?

what's the situation?

well?

You...what's wrong with you? Yang Xiaoman looked at Xu Mang in confusion, and asked curiously, Why are you suddenly in a daze?

Did you bring paper and pen? Xu Mang asked seriously.

 …