When he was in his hometown before, because he was worried about encountering problems in his previous life, Xu Chuan specially talked to his mentor Chen Zhengping about this aspect.

Although he was a little surprised by his thoughts, Chen Zhengping still explained it to him.

For the time being, there is basically no need to worry about purely theoretical research, as long as it does not involve energy, military industry, and nuclear physics.

The cutting-edge theoretical physics achievements of high-energy physics, particle physics, and quantum physics are basically open and transparent, and most of the papers and materials are published in major journals and can be viewed by all countries.

The results of this research, while important, are aimed at an unknown number of years in the future.

Like Professor Witten's string theory, do you say it matters? If it can be confirmed, it will be the result of changing the entire physics community.

But if you want to test string theory, you will have to wait until the next century or even the next century.

Coupled with the fact that these research results are basically public, no country will hinder or force scholars in this field to leave and stay.

So there's nothing wrong with going out and studying physics and pure mathematics in these areas.

No matter how much you do in this area, no one will hinder you from returning home too much.

Just like Mr. Yang, his contribution to the physics community is enormous.

Phase transition theory, theoretical explanation of magnetic flux quantization of superconductors, time inversion theory, cosmic non-equilibrium law, Yang Mills gauge field theory.....

These theories and knowledge are out of the reach of ordinary people for a lifetime, but they are still coming back.

Qiu Lao is known as the emperor of mathematics and has won all the highest awards in the world of mathematics, including the Wiblen Prize, the Fields Medal, and the Wolf Prize in Mathematics.

A scholar from the United States commented: "Qiu Chengtong alone is worth half of the mathematics department of Harvard University." ”

Such a top mathematician also returned, so Chen Zhengping asked Xu Chuan to go abroad to study boldly, as long as he didn't touch those things in sensitive areas, he didn't have to worry about these.

Xu Chuan still agrees with this statement, and the reason why he was trapped in the first area in his last life was because of his exposure to nuclear energy applications.

Therefore, during his university years, it would be good for him to publish papers and research in a purely theoretical direction.

When he graduates from college and gets his degree certificate, he will probably go back to study as an exchange student or international student.

In his previous life, he had reached his limits in both applied physics and condensed matter physics, and it could be said that he had reached the limits of the world.

Although physics is huge, and he still has a lot to learn, repeating himself in physics will only improve his knowledge in this area, and he will not be able to make a breakthrough.

The road of a strong man lies in challenging himself and climbing new heights, and in this life, he chose to major in mathematics in the hope of breaking through the bottleneck with the help of mathematics-assisted physics to see a different landscape.

In addition to this, there are some practical applications to be expanded.

For example, controlled nuclear fusion.

When it comes to the research on controlled nuclear fusion, even after 20 years, he is the first person in the world, but he is also the one who stands at the top.

After he solved the problem of superconducting materials in his previous life, the new round of problems of controlled nuclear fusion was transferred to the control of ultra-high temperature plasma turbulence in the reaction chamber.

And that's the math puzzle.

Xu Chuan had a vague intuition that if this problem could be solved, then controllable nuclear fusion might really be touchable.

So although he still had some worries in his mind, there were also reasons why he had to go out and study.

.......

The month of August passed quickly, and the beginning of the school year in September arrived.

Packing his bags, Xu Chuan once again embarked on the road of progress.

He didn't wait until September 1, but came to NTU a few days early to report.

This was his own action, although the president of NTU asked him to come over on the September 1st freshman report, and he greeted him personally, but Xu Chuan felt that this was too flamboyant and refused.

At this stage, he is still just a student, and the focus should also be on learning, not on these indifferent platoons.

"Teacher."

When he came to NTU, Xu Chuan found his mentor Chen Zhengping after dragging his luggage.

"Huh? Why did you come here early. ”

In the office, Chen Zhengping was a little surprised, he remembered that Liu Gaojun said that he would personally greet Xu Chuan on September 1st, and today is only August 27th, did he remember the wrong day?

"Oh, I think the greeting or something is a bit too ostentatious, so I talked to the principal and came over early, and my attention should be on studying at this stage." Xu Chuan explained.

Chen Zhengping smiled with satisfaction, stood up and said: "It's good that you can have this kind of thought, at this stage, your attention should indeed be on studying, although the welcoming ceremony will help the school increase its reputation, but it will be a lot of pressure for you." ”

"Let's go, I'll take you to go through the enrollment procedures first, and you can leave the luggage in my office first."

Xu Chuan nodded, followed Chen Zhengping all the way to the Academic Affairs Office, and the two chatted as they walked.

As he walked, Chen Zhengping briefly introduced his research field:

"If you have read some of my papers, you should know that my research direction in physics is in condensed matter physics and high-energy physics, but this is my research direction in the past ten years."

"Now I have shifted my focus to the direction of materials physics, mainly studying the structure and physical properties of low-dimensional materials, as well as spintronic materials, and some of the doctoral students I am taking with me are also in this area."

"Of course, I don't have this requirement for you, I have collected some information about you, you are very talented in mathematics and physics, and you are good at independent study and research, so I don't force you to join my research direction like other students."

"Well, if you're interested, you can also try it."

"If you're not interested, at least you should tell me your study goals and areas so that I can get a better idea of what you should have thought about during the summer vacation, right?"

Xu Chuan nodded and said, "I have thought about it, during college, my learning goal in physics was mainly in the field of quantum field theory. ”

"If you want to be a little more detailed, let's take particle physics as the direction of study."

Chen Zhengping nodded, not dissatisfied that Xu Chuan did not participate in his research.

At his level, he doesn't care much about these things, on the contrary, he prefers to see the flowers of the motherland bloom.

What's more, condensed matter physics was his previous research field, and although particle physics is somewhat different from condensed matter physics, it is only a different research object.

One is to study condensed matter physics using the methods of quantum field theory, while the other is to study elementary particles using the methods of quantum field theory.

He can still impart some knowledge in this area.

......