"Hey, Shen Qi, don't bow your head and play with your phone! Is there any basic table courtesy?" Sun Erxiong glared at Shen Qi, and after the speech, he found Shen Qi, who was inviting Shen Qi to eat steamed buns at the bun shop outside the school.

"Professor Sun, you are really good, you taught the cloud god and the great god?" Shen Qi put away his phone and asked.

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

Shen Qi: "Arrange for me to meet with Yunshen and Weishen alone, they rarely return to China, and they happened to be bumped into by me again." ”

"In the future, you will have a lot of opportunities to meet Yun Wei and Gong Changwei, don't worry. Sun Erxiong said, and then asked: "During the training of the Golden Autumn Camp last year, I suggested that you engage in physics, learn computers, and expand the breadth of knowledge.

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

"That's right. Sun Erxiong saw that Shen Qi didn't look like he was pretending, and said: "Actually, it's okay to play playgames, then you hurry up and prepare for the battle, you're here, you have to win a grand prize anyway." ”

Shen Qi returned to Yanda's bedroom, a four-person room, and he had three roommates.

Although this Nanyue Provincial Athletic Team competes in the name of the province, in fact, each high school plays 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 are from several provinces with strong physical competition, or from more than a dozen high schools in these strong provinces. Now this trend is becoming more and more obvious, and another way of saying the National Physics Competition for Middle School Students is the "National Famous High School Competition".

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

The 12 national finalists of the Nanyue Provincial Competition Team came from five high schools in the province, including 4 from Huafu, 3 from SAR Middle School, 2 from Shengshi, 2 from Shimen Middle School, and 1 from Nangang No. 2 Middle School.

There are four people in one room, and the four members of Huafu naturally live in the same bedroom.

In terms of competition, Nanyue Province has the strength to compete with the national high school is the Special Zone Middle School, which is famous in the province and even the whole country for its subject competitions and unique school spirit.

The Special Zone High School is definitely more famous than the SAR University, although only three people came to the CPhO national finals, but they took the elite route, all three of them are sophomores, and they all participated in the CPhO national finals when they were freshmen in high school last year, and they all won national awards.

Of course, the three people from the Special Zone Middle School also shared a room, and there was an extra bed in this dormitory, which was left for Shen Qi.

has not experienced the provincial training mode, so Shen Qi is not very familiar with the three roommates from the special zone middle school.

The three roommates knew Shen Qi's identity, and he was a gold medalist with a perfect score at IMO.

The three top students from the SAR are also people who have seen the world, and they did not show excessive enthusiasm for Shen Qi, nor did they snub them.

Everyone got along with each other friendly, politely, and discussed a few physics competition questions from time to time to meet friends.

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

Of course, the Langlands program is awesome, this is a pure mathematical program, number theory + geometry forms a unified new mathematical rules, who is qualified and capable of formulating rules?

But it is undeniable that the Longlands Program is a road from which there is no return, and once you embark on this path, you will either become a god or become a ghost. There is no mentality that leads to black, and it is better not to delve into this thing, it is too difficult to go it alone on this path.

Shen Qi's involvement in physics is also to leave a way back for himself, and the research direction involved in mathematics + physics is much broader, and there will always be a way to live.

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

Today is May 2nd, and tomorrow will be the theoretical exam of the CPhO national decision, and Mu Rong and Shen Qi are eating in the cafeteria of Yan University.

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

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

"I'm tired. Shen Qi sighed.

"That's the case, I can understand that. ”

"I'm tired. ”

"Come, Shen Qi eats fish to replenish his brain. ”

"Before the 19th century, Gauss, Euler, Riemann, Cauchy and other bigwigs basically finished studying the mathematical branch of the study, and in the 20th century, it belonged to Poincaré, Hilbert, Kolmogolov, Grothendieck and other modern bulls, today in the 21st century, where is our way out?

"I'll go ......" Mu Rong was speechless for a while, "Shen Qi, this is the reason why you are tired?"

"Uh-huh. ”

"What the hell does I know where the way out of mathematics is in the 21st century? As soon as I am a doctor of astrophysics, I am still confused!" Mu Rong asked Cangtian speechlessly, and reminded Shen Qi solemnly: "Hey, tomorrow morning I will take the theoretical questions of the national competition, I beg you Shen Xueba, can you take care of yourself and forget about mathematics for a while? You are my only seedling, the only seedling of the whole school!"

"Let's go with the flow. ”

“......”

Mu Rong was very worried, she found that Shen Qi was a little abnormal, she knew that this was the case, so she wouldn't go to wave with her girlfriend in the past few days, staring at Shen Qi to see what he had done in the past few days, where he went, and who had contact with him? On the eve of the CPhO national decision, Shen Qi, you talk to me about the new program of mathematics, have you been brainwashed by anyone?

On the morning of May 3rd, the CPhO Theory Exam will begin.

From half past eight to half past eleven is the exam time, three hours.

During the May Day holiday, when college students did not attend classes, Yanda vacated a teaching building for the theory test of the CPhO national decision.

At 8:30, the theory test officially began.

There are a total of eight questions in the theory 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 about it for half an hour without writing.

The stem of the third question reads:

"In NaCl crystals, the sum of the energy of the ion-to-ion interaction can be expressed as:

Ep=N(am/rm-αe^2/4πε0r)

where N is the number of positive and negative ion pairs in the crystal, which is a large integer, r is the spacing of adjacent positive and negative ions, e is the amount of electrons, am, α, m are constants, and the minimum value of Ep is called the binding energy.

Try to find the values of am, α, and m. ”

If you weren't a physics master, you might not even be able to understand the stem.

Below the question stem, the questioner gives 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 expansion of crystal lines

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 can't understand the question stem, the above mathematical formulas and physical constants are also given in vain.

"This is a very nasty branch of solid state physics. Shen Qi reviewed the question for half an hour and finally found an idea.

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

It's a bit tricky.