"Why is the community becoming stricter than before?" Xu Youxin said.

Xu You found that at the security guard at the door, the security guard began to carefully inspect every person entering the community.

Although before, the community also entered and exited by swiping cards.

But there is also a kind of card-free behavior that is not a person in this community.

This situation is very common in every community, and security guards generally don’t care.

For those who do not have a community card, the security guard will ask them to register before they can be released and enter the community.

Xu You thought, if every community became like this, it might be that something happened recently that made the overall community supervision stricter.

And if it were the case in this community of my own...

Then the problem is completely different.

Xu You didn't think too much, after all, going back to study is more important.

After returning to his room, Xu You turned on the computer and began to organize the information sent by Han Shubin.

The information sent by Han Shubin is all about various internal documents, documents, etc.

Although the quantity is not particularly large, each piece of information has a high value content, and it is the kind of information that you can't even buy even if you want to.

However, the threshold for the content on these materials is very high and the content is very obscure.

It is impossible for non-professional people to understand.

Of course, this is not a big problem for Xu You.

Although Xu You is not a professional researcher in quantum computers.

But Xu You has a certain understanding of many things.

Moreover, some of the achievements Xu You have made before are related to quantum computers.

Xu You can understand logical knowledge like this through his powerful brain.

Before starting to study.

Xu You prepared some chocolate and water next to him.

This is an experience Xu You summarized after experiencing so many deep learning states.

A continuous and long-term deep learning state is a great test for Xu You's health.

But if the time of deep learning is dispersed, the effect will be greatly reduced.

During the learning process, proper replenishment of energy and water can allow Xu You to persist for longer at a time.

Through practice, simple movements such as eating chocolate and drinking water will no longer distract Xu You from his attention.

After making sufficient preparations, Xu You began to study these materials.

It is very challenging to start learning this kind of obscure knowledge by yourself from the beginning.

Even Xu You can't understand everything at once.

The method Xu You took was to learn these materials quickly for the first time.

When ensuring that you can understand most of the content, if you encounter something you don’t understand, mark it first.

The labeling is just to make Xu You more convenient to find its location. At the same time, Xu You also wrote down this question that he didn't understand in his mind.

After reading the first time, Xu You started the second time again and thought about these marked places again.

With the first accumulation of knowledge, it becomes much easier to solve these problems.

After a few days, Xu You had already understood most of the knowledge except in a few places.

When examining the concept of "quantum error correction" again, Xu You already had a deeper understanding.

It's like when two people are typing and chatting, it is inevitable that some wrong messages will occur.

If it is a small problem, then this kind of mistake is insignificant.

For example, A asked B, have you eaten?

B originally wanted to eat it, but the answer was that he didn't eat it.

This will not have any serious impact.

But if A asks B, do we need to press the button of this nuclear device?

At this time, if information input error occurs.

Make "don't" a "want".

That will have extremely serious consequences.

Therefore, it is necessary to ensure that the quantum computer can process information correctly.

Quantum error correction is a problem that must be solved.

To solve this problem, a relatively simple method is to repeat it.

Because the probability of sending an incorrect message every time is relatively small.

After sending the same information repeatedly, taking a larger amount of information as the result, the error rate can be greatly reduced.

Of course, in addition to this kind of error, there are some more complex error types, and the error correction methods are also more complicated.

After Xu You completed the study of the quantum error correction part.

There are still several other knowledge, but I don’t understand them very clearly.

Xu You decided to go and ask Han Shubin for advice in person.

After telling Liu Jiao about her request, Xu You and Han Shubin made a reservation and came to Han Shubin's office again at the University of Science and Technology of China.

It started when Xu You participated in the island program and met Han Shubin for the first time.

This is the fifth time that the two have met.

When Han Shubin met Xu You, he was in a good mood.

"How is this? How are you reading these contents?" Han Shubin asked with a smile.

"The quantum error correction part has been taught by yourself, but there are still a few questions that I don't understand very well."

Han Shubin was very surprised when he heard Xu You's answer.

Have you finished reading the quantum error correction part these days?

You know, this is all the knowledge related to quantum error correction that Han Shubin has been able to collect in recent years.

Looking around the world, there are not necessarily people who have more information in related fields than Han Shubin.

If Han Shubin had to learn from the beginning...

It's hard to get started in just a few months.

But Han Shubin would definitely not doubt Xu You, nor would he do such a boring behavior as taking a few questions to test Xu You.

"Xu You, please tell me about your current problems."

"Okay, Academician Han."

Next, Xu You mentioned several questions that he had had during the learning process these days.

Just from Xu You's question, Han Shubin was able to confirm that Xu You had indeed understood most of the above knowledge.

If you cannot understand so much knowledge and just browse these materials.

It is impossible to ask questions of this level.

Every question raised by Xu You is the most difficult point in these information.

Xu You didn't understand, but it was not because Xu You's ability was not enough.

It is just because of the limitations of the form of information that this knowledge is difficult to express in words alone.

Just like what Xu You described in the mechanism of high temperature superconducting, even the top experts in the industry cannot understand them all.

After that, Han Shubin and Xu You had a few hours of communication.

Through face-to-face communication with Han Shubin, Xu You finally solved several questions in his heart.

"Thank you, Academician Han, I have understood it all."
Chapter completed!