The unparalleled talent of the country started from Harbin Institute of Technology

Chapter 129: Talking with Qian Xuesen and Yang Zhenning despite all the hesitation? (Subscribe)
At the gate of the Beijing Housing Management Office, Wang Duoyu, Liu Xiaoli, and Uncle Zhang successfully bought the courtyard house at No. 87 Zhongguancun West Street under the witness of the staff of the Housing Management Office.

The real estate certificate is just a piece of paper, and the transfer can be completed very quickly, especially quickly.

"Let me make this clear first. I won't be able to move all my luggage out until the day after tomorrow. If you want to move in, it won't be that fast."

Uncle Zhang looked at Wang Duoyu nervously and said, the latter nodded indifferently.

Holding the property certificate in his hand, Wang Duoyu was filled with emotion. He now had a place to stay in Beijing.

However, I’m afraid Zhu Ling must not know this location, otherwise she will definitely make a fuss.

It's really impossible to please everyone, so it seems I have to take some time to put an end to it.

If he continues like this, he will be exposed sooner or later, and it will also be a waste of his time.

After coming out of the Housing Management Office, Liu Xiaoli was still sighing, but she was not only sighing about buying a house, but also envious of Uncle Zhang for going to the United States to pursue a better life.

"What's wrong with you? This is the house you chose, and you will definitely have a share in it in the future."

"Tsk, who cares?"

Liu Xiaoli blushed and spat, then immediately changed the subject, "Duoyu, what kind of country is the United States? Are they really that developed?"

"Well, the United States is very developed. Although I haven't been there, Professor Shiing-Shen Chern and his team invited me before."

After hearing Wang Duoyu mention this matter again, Liu Xiaoli waited for him to finish speaking before sighing again:
"You said you had such a great opportunity, why didn't you go study in the United States? Didn't you also say that your school has a lot of people going there to stay? Why are you so reluctant to go?"

Wang Duoyu smiled and didn't say anything more.

I have already discussed this matter in the letter I wrote to her before, so there is no need to repeat it.

"You seem to want to go to America?"

“I don’t really want to go, I’m just curious, after all, I’ve never been there.”

Liu Xiaoli has been staying in Jiangcheng since 1970. Being in Jiangcheng, she is of course able to come into contact with many new things from the outside world.

In addition, her family is actually quite well-off, so it can be said that she has been influenced by her family since she was a child and has been exposed to more things about foreign countries than ordinary people.

Therefore, it is normal for her to be curious about the United States and want to visit there.

"There will be a chance in the future." Wang Duoyu smiled meaningfully. He planned to tell the other party everything tonight and test him again.

If the other party is willing to be with him, then he will break off his relationship with Zhu Ling.

Otherwise, he would break up with Liu Xiaoli. After all, he could only marry one person and could not have two wives at the same time.

In the evening, Wang Duoyu and his friend went to a state-owned restaurant on a street near Peking University for dinner.

After dinner, the two walked back to the guesthouse. After Liu Xiaoli came back from washing up, the two sat in the room, and Wang Duoyu prepared to start talking about this matter.

"Xiao Li, we've known each other for a while. We spent half a month together around the Spring Festival. What do you think of me?"

To be honest, they had met less than ten times in total, except for this time in Jiangcheng in November and around the Spring Festival, so they had spent a little more time together.

But all in all, the two of them had spent less than a month together, and they mostly communicated through letters.

So, when Liu Xiaoli heard this, she was a little confused.

The smart girl had already roughly predicted what Wang Duoyu would say next, and for a moment she couldn't help feeling excited, nervous, expectant and uneasy.

She expressed her feelings truthfully. Wang Duoyu is a very good person. His abilities, appearance, and personality are all in line with what she is looking for in a partner.

"Well, I like you too. I'm already 23 years old, which is not young anymore."

After a pause, Wang Duoyu continued:

"During the Spring Festival, my elder brother and his family urged me to get married quickly. My idea was..."

Liu Xiaoli suddenly became nervous. She felt a mixture of joy, hesitation, helplessness, and even more of a loss.

She didn't know whether she should accept his proposal or not.

After a silence of more than a minute, Wang Duoyu saw that the other party still didn't speak, so he took the initiative to say:

"So, Xiaoli, what are your thoughts? Are you willing to spend the rest of your life with me and become my lifelong revolutionary partner?"

This is a clear card. If Liu Xiaoli is still unwilling, then Wang Duoyu can only give up on her.

"Can you let me think about it again?" Liu Xiaoli looked at Wang Duoyu infatuatedly. She was still very confused and couldn't make up her mind immediately.

"The time we've spent together is still too short. I want to spend more time with you. We can't be impulsive."

Wang Duoyu was completely speechless when he heard this.

It seems Liu Xiaoli is still reluctant. Is he not good enough? Isn't he good enough to make the other party agree directly?

Why are you still making excuses?
But before the Spring Festival, Liu Xiaoli was still very willing and took the initiative to have sex with him.

All they need now is a marriage certificate, and they already have a negative distance relationship. Why does she still lack trust in Wang Duoyu in her heart?

Is it really because we haven’t spent enough time together?
Seeing this, Wang Duoyu smiled and nodded in agreement, but even so, Liu Xiaoli still felt that he was a little unhappy.

So tonight, although the two of them still slept together, there was a gap between them, and they felt like they were sleeping in the same bed but dreaming different dreams.

Liu Xiaoli hugged him all night, talking to him and chatting about her life dreams and career.

But to be honest, Wang Duoyu really has no interest in her dream of becoming a dancer.

She didn't want to be trapped in a kitchen of a few square meters in her best years, taking care of her husband and children, and spending her days doing the daily chores of rice, oil, salt, sauce, vinegar, tea, and family matters. She wanted to struggle for a few more years.

Wang Duoyu expressed his respect, but he did not agree to wait for the other party for a few years. He just said that since this was the case, let's talk about it in the future.

But deep down in his heart, Wang Duoyu has temporarily given up on Liu Xiaoli.

Perhaps at this time, marrying Zhu Ling is the final outcome.

The next day, Wang Duoyu went to the computing center and found Director Feng Kang.

Coincidentally, Wang Duoyu met Yan Jici in the computing center, who was chatting with Feng Kang along with several graduate students.

When the latter saw Wang Duoyu, he immediately stood up with a happy face, and then took the initiative to introduce Wang Duoyu to Yan Jici.

When Wang Duoyu learned that the old man in front of him was Yan Jici, he hurried forward and greeted him respectfully.

Yan Jici was born in the 2000s and is already 78 years old this year. Even so, he is now the first dean of the Graduate School of USTC.

The Graduate School of USTC was established on the former site of USTC on Yuquan Road in Beijing. It was established in March last year.

Yan Jici, who is about to turn 80, is still making use of his remaining energy to continue working for the education and scientific research of the motherland. Many scientists of this era are great and lovely people.

In his previous life, he had also read the book "Electromagnetism" written by Yan Jici, so Wang Duoyu has great respect for big names like Yan Jici.

"Oh, so you are Comrade Wang Duoyu?"

After Feng Kang finished his introduction, Yan Jici, who was wearing thick glasses, asked unexpectedly with a hint of surprise in his eyes.

"Yes, I'm Wang Duoyu. Principal Yan, have you heard of my name? I'm so lucky."

Wang Duoyu spoke with a touch of excitement, a mixture of excitement and relief. He was indeed quite famous in Beijing. After all, everyone at the Institute of Computing Technology and the Institute of Mathematics knew him. And the academic conference to be held at Peking University in April this year was definitely the first international academic conference held in Beijing since the founding of the People's Republic of China.

Even though this academic conference is limited to mathematics, its influence has gradually spread and many units will attach great importance to it.

As the vice president of USTC and dean of the Graduate School of USTC, Yan Jici had of course heard about this matter.

The Department of Mathematics at USTC was founded in 1958. Hua Luogeng personally presided over its creation and served as the first dean of the department.

Therefore, students from USTC must attend this academic conference at Peking University.

The Graduate School of USTC, which was established in March last year, also recruited graduate students in mathematics, and these students will inevitably attend the academic conference.

On the other hand, although Yan Jici was one of the pioneering figures in modern physics research in China and achieved many important results in piezoelectric crystallography, spectroscopy, atmospheric physics, applied optics and optical instrument development, his mathematics was actually not bad.

In other words, many people who study physics are not bad at mathematics, and Yan Jici's mathematics is more than enough, because there were no supercomputers in their era.

If you are not good at mathematics, many physical research topics that require the use of mathematics will not be able to proceed at all. You can't always ask a mathematics professor for help, right?
Yan Jici compiled ten mathematics and physics textbooks from elementary school to university, such as "Junior High School Arithmetic" and "Method of Geometric Proof".

After communicating with Yan Jici, Wang Duoyu finally understood the other party's purpose of coming here.

But it had nothing to do with him, because the other party was only here to see Feng Kang, and he was also here to see Director Feng.

After a while, Feng Kang went to arrange for people to help take away Yan Jici's graduate students.

After they all left, Yan Jici started chatting with Wang Duoyu.

"Comrade Duoyu, I heard that you are about to hold an academic conference at Peking University about your paper on the Poincare conjecture, right?"

"Yes, Principal Yan."

"Good, good, good. The young are indeed formidable. Not bad, not bad."

Upon hearing this, Yan Jici smiled delightedly and praised Wang Duoyu profusely. After trying to get close to him for a while, he said:
"It's like this, Comrade Duoyu, I have an unwelcome request, I wonder if you can agree to it?"

Upon hearing this, Wang Duoyu straightened up and said seriously:

"Principal Yan, although I don't know what you need me to do, if I can help, I will definitely not refuse."

He respected the other party very much, but that didn't mean he would agree to all the other party's conditions. What's more, this was the first time they met, and the other party had actually taken the initiative to mention it. Maybe there was really something he needed his help with?

And there is a high probability that only Wang Duoyu can help with this, after all, Yan Jici is the vice president of USTC.

However, Lao Guo passed away in June last year, and now the University of Science and Technology of China is actually managed by Yan Jici.

In other words, with Yan Jici's current status and position, is there anything that requires him to ask others for help in person?

It can almost be said that there is no other option, but when he met Wang Duoyu for the first time, he took the initiative to ask Wang Duoyu if he could help. So there is only one thing Wang Duoyu can think of, and that must be related to the academic report that Yan Jici mentioned just now.

If Wang Duoyu's guess is correct, then we must hope that he can go to USTC and first talk to the students of USTC about the paper proving the Poincare conjecture in four-dimensional space.

In fact, just as Wang Duoyu guessed, Yan Jici had the same idea.

He really hoped that Wang Duoyu could go to the graduate school and talk to the mathematics graduate students there about this paper and give them lessons.

The reason is very simple. This paper is too difficult.

Those people in the Institute of Mathematics, such as Tao Fangqi, Chen Jingrun, Yang Le, Zhang Guanghou and others, are all very busy, busy preparing for academic conferences.

On the contrary, as someone who needed to make a report, Wang Duoyu was quite leisurely. Anyway, Yan Jici knew that Wang Duoyu participated in the scientific research project of the Institute of Computing Technology, and he came to the Computing Center today to help Feng Kang.

He is really a 'big idler'.

That is why Yan Jici took the initiative to mention this matter.

Wang Duoyu didn't look too surprised when he heard the other party's request. After agreeing to it, he mentioned a request:
He hopes to communicate with the other party.

why?
Because he had already started studying and understanding the algebraic mechanisms behind quantum integrable systems in late November last year. This is an algebraic problem in mathematical physics, so he needed to communicate more with experts in physics.

It just so happened that he had accumulated some problems in recent times, so he could take this opportunity to communicate with each other.

"Okay, no problem. But I'm not an expert on quantum integrable systems. How about I introduce you to Qian Xuesen? He has extensive research in this area."

After a pause, Yan Jici continued:
"Actually, if Professor Yang Zhenning were in China, you could consult him directly; he's the expert in this field."

Upon hearing this, Wang Duoyu nodded excitedly.

This is the real boss!
You should know that a quantum integrable system refers to a special type of nonlinear quantum many-body system. Its concept comes from classical mechanics. A classical mechanics system can usually be described by a set of differential equations. The solution of this set of differential equations is their integral, so integrable means solvable.

Qian Xuesen is an expert in mechanics. Wang Duoyu would certainly benefit a lot from communicating with such a big man.

If it was Yang Zhenning, Wang Duoyu would be even happier.

In the 1960s, Yang Zhenning pointed out that the scattering matrix of a quantum integrable system can be factorized. This condition is described by the famous Yang-Baxter equation.

Integrable models play a very important role in quantum field theory, condensed matter physics, statistical physics and other fields.

Among them, the famous Yang-Mills field theory is one of the problems that Wang Duoyu wants to solve. In this famous theory, there is an existence and mass gap problem, which is an important problem in theoretical physics. It involves whether the mass of elementary particles in Yang-Mills theory exists and whether there is a mass gap.

If Wang Duoyu could communicate with Yang Zhenning in person, he might really be able to make some breakthroughs.

Therefore, the field of quantum integrable systems itself can be expanded in many aspects, including algebraic problems, Yang-Mills existence and mass gap problems, Langlands conception, etc.

Among these problems, some are in the field of pure mathematics, such as the Langlands conception, some are theoretical physics problems, such as the Yang-Mills existence and mass gap problem, and some are mathematical physics problems, such as algebraic problems.

Simply put, studying quantum integrable systems is a huge pit that can be dug deep, and there are many scientific research results in it.

Wang Duoyu, who is still young, cannot let go of or miss such research.

Yan Jici looked at Wang Duoyu with a gentle smile. Seeing that the latter agreed, he nodded and started to make an appointment.

Wang Duoyu's original plan was to play in Beijing for two days after solving the technical problems of the high-speed array processor project, and then return to Ice City.

It now seems that the time will have to be postponed for a few days.

At this time, Feng Kang came back and saw Yan Jici and Wang Duoyu chatting happily, so he couldn't help but ask a question out of curiosity.

Upon learning that Wang Duoyu was going to give a lecture at the Graduate School of USTC, which was considered an advance report, Feng Kang immediately said:

"Principal Yan, could you please add a few more chairs? We at the Computing Center would also like to attend this lecture!"

Wang Duoyu was going to give a lecture on the proof of the Poincare conjecture in four-dimensional space. This was a rare opportunity, and Feng Kang wanted to attend it as soon as possible.

Not only did he want to participate, he also wanted to bring others.

At this moment, Yan Jici also reacted and said quickly:

"Director Feng, you can't tell anyone about this anymore. It has to be kept strictly confidential. Otherwise, if too many people show up, the lecture might have to be cancelled."

Feng Kang nodded repeatedly after hearing this, while Wang Duoyu echoed with some fear:
"Yes, Principal Yan is absolutely right. This matter is limited to the three of us. On the day of the lecture, Principal Yan and Director Feng will inform everyone. And it must be kept strictly confidential. I don't want to stay in Beijing all the time."

It is almost conceivable that if this matter were to be leaked, even more people would want to sign up.

In this matter, it is impossible for Wang Duoyu to keep talking about this paper to everyone.

So, confidentiality is necessary, but it is obvious that secrets often cannot be kept.

PS: I just realized it's my birthday today. Happy birthday to myself and Happy Winter Solstice! The Winter Solstice is as important as the New Year, but it's a small reunion for everyone. I wish everyone all their wishes come true and good health!
(End of this chapter)