I Just Want to Be a Quiet Top Student

Chapter 96 The Mystery in NaCl Crystals

"Hey, Shen Qi, don't lower your head and play with your phone! Do you have the most basic table manners?" Sun Erxiong glared at Shen Qi. After the speech, he found Shen Qi. He was inviting Shen Qi to eat steamed buns at the bun shop outside the school.

"Professor Sun, you are really good. You taught Yunshen and Weishen?" Shen Qi put away his phone and asked. .

"At that time, I was in charge of teaching several basic undergraduate courses for their mathematics students. There were too many teachers teaching them, and I was just one of them." Sun Erxiong said.

Shen Qi: "Arrange for me to meet with Yunshen and Weishen alone. It's rare for them to go back to China, and I happened to bump into them again."

"You will have a lot of opportunities to meet Yunwei and Gong Changwei in the future, so don't worry." Sun Erxiong said, and then asked again: "During the training at the Golden Autumn Camp last year, I suggested that you do physics and learn computers to expand your knowledge. How lucky you are to come to participate in CPhO? Shen Qi, are you trying to betray the Department of Mathematics?"

"Hey!" Shen Qi slapped his thigh fiercely, and suddenly realized: "Yes, I'm here to participate in the physical competition! Professor Sun, if you don't mention this, I almost forgot."

"That's it." Sun Erxiong saw that Shen Qi didn't seem to be pretending, and said again: "Actually, it's also possible to play object competitions, then you should hurry up and prepare for the battle, it's all here, and you have to win a big prize no matter what."

Shen Qi went back to the dormitory of Yanda University, four people room, he has three roommates.

Although this Southern Guangdong Provincial Sports Team participated in the name of the province, in fact each high school played its own game. The situation is more or less the same in other provinces.

Looking at the list of national training teams in the past ten years, more than half of the national team players come from several strong provinces, or more than a dozen high schools in these strong provinces. Now this trend is becoming more and more obvious. Another term for the National Physics Competition for Middle School Students is "National Famous High School Competition".

Similar to the number competitions, the members of the Wujing national training team will naturally have a bright future, and they are the favorites in the eyes of prestigious universities.

The 12 national finalists of the Wujing team of Nanyue Province come from five high schools in the province, including 4 from Huafu, 3 from Special Economic Zone Middle School, 2 from Shengshi, 2 from Shimen Middle School, and 1 from Nangang No. 2 Middle School.

Four people share a room, and the four team members of Huafu live in the same dormitory logically.

In terms of competition, Nanyue Province has the strength to compete with the top high schools in the country. It is the special zone middle school. This middle school is famous in the province and even the whole country for its academic competitions and unique school spirit.

The SAR High School is definitely more famous than the SAR University. Although only three people came to the CPhO National Finals, they took the elite route. All three of them were sophomores. They participated in the CPhO National Finals when they were freshmen last year. to the National Awards.

Of course, the three of them from the special zone middle school also shared a room, and there was an extra bed in this dormitory, which was reserved for Shen Qi.

He hadn't experienced the provincial training mode, so Shen Qi didn't know the three roommates from the special zone middle school very well.

The three roommates knew the identity of Shen Qi, an IMO gold medalist with full marks.

The three academic masters from the special zone are also people who have seen the world, and the three of them did not show excessive enthusiasm for Shen Qi, nor did they feel cold.

Everyone gets along with each other in a friendly manner, and discusses a few physics competition questions from time to time to meet friends.

Ever since listening to Yun Wei and Gong Changwei's speech, Shen Qi's heart has not been able to completely calm down.

The Langlands program is of course awesome. This is a purely mathematical program. Number theory + geometry form a unified new mathematical rule. Who is qualified and capable of formulating the rules? is God.

But it is undeniable that the Langlands Program is a path of no return. Once you embark on this path, you will either become a god or become a ghost. Without the mentality of going all the way to the dark, it is best not to study this stuff in depth. It is too difficult for one person to fight alone on this road.

Shen Qi's involvement in physics is also to leave a way out for himself. The research directions involved in mathematics + physics are much broader, and there will always be a way out.

"Shen Qi, you seem to be absent-minded?" Mu Rong asked.

Today is May 2, and tomorrow will be the theoretical exam for the CPhO national finals. Mu Rong and Shen Qi are having dinner in the cafeteria of Yanda University.

"A little nervous, a little confused." Shen Qi said.

"Are you also nervous and confused?" Mu Rong smiled, and then said seriously: "Don't joke with me, Shen Qi, tomorrow is the main match, why do I feel that your state is a little abnormal?"

"So tired." Shen Qi sighed.

"Xueba is like this, I can understand."

"Tired."

"Come on, Shen Qi eat fish to nourish his brain."

"Before the 19th century, Gauss, Euler, Riemann, Cauchy and other great masters basically completed the research on the mathematical branch of the research, and the 20th century belonged to Poincaré, Hilbert, Kolmogorov, Grotten Dick and other modern masters, in the 21st century, where is our way out? Ah, Teacher Mu, tell me, where is the way out?" Shen Qi hugged his head, looking very distressed.

"I'll go..." Mu Rong was momentarily at a loss for words, "Shen Qi, is this the reason for your tiredness?"

"OK."

"I don't know where is the way out for mathematics in the 21st century? I'm a Ph. D. in astrophysics, and I'm still at a loss!" Mu Rong asked the sky speechlessly, and then reminded Shen Qi seriously: "Hey, I will take the exam tomorrow morning Theoretical question, I beg you Shen Xueba, can you calm down and forget math for a while? You are my only seedling, the only seedling in the whole school!"

"Things compete with each other, let nature take its course."

"..."

Mu Rong was quite worried. She found that Shen Qi was a little abnormal. If she had known this, she wouldn't hang out with her girlfriends these days. She stared at Shen Qi to see what he did and where he went these days. Who have you been in contact with? On the eve of the CPhO national decision, Shen Qi, you talked to me about the new mathematics program. Have you been brainwashed by someone?

On the morning of May 3, the CPhO National Final Theory Exam will begin soon.

The exam time is from 8:30 to 11:30, three hours.

During the May Day holiday, college students did not attend classes, and Yanda vacated a teaching building for the theoretical examination of CPhO national finals.

At 8:30, the theory test officially begins.

There are a total of eight questions in the theoretical test paper, all of which are calculation questions. Each question has the same score of 35 points, and the total score of the paper is 280 points.

Shen Qi's progress in answering the questions is not fast, to be honest, this exam paper is quite difficult.

In the first hour, Shen Qi did two questions.

As for the third question, Shen Qi thought for half an hour without writing.

The stem of the third question reads as follows:

"In NaCl crystals, the sum of the interaction energies between ions can be expressed as:

Ep=N(am/rm-αe^2/4πε0r)

Among them, N is the number of positive and negative ion pairs in the crystal, which is a large integer; r is the distance between adjacent positive and negative ions; e is the electron charge; am, α, and m are constants; the minimum value of Ep is called the binding energy.

Try to find: the value of am, α, m. "

If you are not a physics master, you may not even understand the stem of this question.

Below the question stem, the author of the question gave some reference formulas and useful physical constants:

(1+x)^β=1+βx+1/2!*β(β-1)x^2+1/3!*β(β-1)(β-2)x^3+…

According to Boltzmann statistics, C is a coefficient that characterizes the linear expansion of the crystal

C=-3NkA^3/4A2^2

The relevant physical constants are: e=1.6×10^-19C;

ε0=8.9×10^-12C^2/(Nm^2); k=1.38×10^-23J/K

...

If you don't understand the question stem, the above mathematical formulas and physical constants are given for nothing.

"This question is a very annoying branch of solid-state physics." Shen Qi reviewed the question for half an hour, and finally found a way.

Solid state physics is a branch that studies the physical form, microstructure, application and interaction of microscopic particles in solids.

It's a little tricky.

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