Chapter 260

What is a theoretical model?

This is a big problem Xu has encountered. He does not know what a theoretical model is. He searched the Internet for relevant questions and did not give a clear answer. On the contrary, many people said it was a tool of the Department of economy.

In order to solve this doubt, Xu mang called Xiaoman.

Then it was very tragic,

she was directly scolded for being unable to be with her tomorrow, and she was very sad.

Of course,

in order to make up for Xiaoman's loss, Xu mang drove to her campus all night. Unfortunately, the trip was not smooth. He met with the first difficulty to stop him, a powerful and experienced security uncle.

"It's me!"

"The handsome guy you took to the dark room." When Xu mang saw the security uncle's face full of stories, he remembered who he was and said with a smile, "I came to find my girlfriend."

"Are you?" Uncle security didn't remember the young man in front of him.

Then,

Xu Mangchong showed a cheap smile.

"It's you!" Cried the security uncle in horror.

After that,

Xu mang entered the school.

To the dormitory downstairs, he encountered the second obstruction, the dormitory door was locked, this special only 9:30!

"Alas..."

"to prevent the greatest happiness of mankind is the locking time of university dormitories." Xu mang has no choice but to call Xiaoman.

"Hello?"

"The gate is locked and I can't get in."

"Climb up!" Yang Xiaoman said carelessly, "I left you a window."

Xu Mang:???

Nowadays, falling in love not only needs money, but also requires some skills, such as climbing up and turning windows.

Xu Mang's ability of climbing walls and windows is very high, which is a skill practiced in junior high school. Although he didn't climb walls and windows for a long time later, it was just like the talent of farming flowing in his genes, which could not be eliminated.

Through skilled skills, Xu mang climbed to Xiaoman's dormitory on the second floor.

"Coming?"

Yang Xiaoman glanced at the panting Xu Mang and said helplessly, "I think you should take a good exercise, and then climb to the second floor... Pant like this. What if I live on the fifth floor?"

"The fifth floor?"

"That can only stage a period of ghost love..." Xu mang turned over the white smoke, a buttock sat on the edge of the table, helplessly said: "so tired, do you have cold coke?"

"Forget what I said?"

"Cola can cause chromosome dilution. If there is any accident in the future, you can wait for death!" Yang Xiaoman is making an excel form with his notebook. Xu mang is a little curious and comes across a large group of names and a pile of numbers behind him.

Oh?

Why is there me in it?

"Little man?"

"What are you doing?" Xu mang asked curiously, "why is there me in it? And is it number one? "

"This is my analysis of the strength of the players in the competition after a few days." Yang Xiaoman said expressionless: "you are my biggest opponent at present, of course, you should be ranked first, see, the value is 100, full score."

Xu mang was stunned for a moment. Originally, his idea was to kill all the people, and then put himself in the second place and let the queen become the first. But now it seems that this idea is unlikely. Xiaoman has a character of not accepting defeat.

"What kind of competition is it Xu asked.

"It's the individual game." Yang Xiaoman said: "two and a half hours to complete a comprehensive paper, as if the score is 500 points..."

"Oh..." Xu mang laughed: "can you accept the fact that you are the second? If not, I'll give it to you. "

"Go away!"

"If I know that you are passive in the game, come back and wait for the family law to serve you!" Yang Xiaoman glared and said: "there is a writer called too white cat, because of the lack of more readers forced to wear women's clothing, I think you can, I know your attitude is wrong, wait to wear women's clothing to run on the playground!"

Sleeping trough!

Is it too hard?

Xu mang shrunk his head and said cautiously, "Oh, Xiaoman, I'm making fun of you!"

"If you love me, please do your best!" Yang Xiaoman said seriously.

Xu Mang: ∑ (°Δ°||︴︴︴︴︴︴︴︴||︴︴︴︴︴︴︴︴︴?

Can't you?

"Er..." Xu mang asked cautiously, "are you... Are you sure? I have a nickname in the world: perpetual motion machine

“？？？”

Yang Xiaoman a face confused, looking at the bad smile of Xu Mang, instantly she understood the meaning of this words, and then... Heart happy words."Ah?"

"Is there a bold idea in your mind?" Xiaoman said shyly: "if you have an idea, act immediately. Don't be a giant in thought or a dwarf in action. In another week, my relatives will come and seize the opportunity."

Xu Mang: I'm a stubborn person "Next year is next year," Xu said seriously, "not one day earlier."

Hearing the sonorous and powerful words, Yang Xiaoman would like to kill Xu mang. Obviously, he would like to hit him like a raindrop. This guy relies on the indecent walking position and gives you one by one.

My heart is so tired that I won't love you any more.

After that,

simply warm up and sprinkle dog food to start the purpose of this visit.

"Little man?"

"Do you understand high temperature superconductivity?" "And what is this theoretical model?" Xu asked

"Not bad."

"I said it on the phone." "High temperature superconductivity is a physical phenomenon that produces zero resistance and complete diamagnetism in liquid nitrogen at 77 Kelvin above the critical temperature," Yang said languidly

"And this so-called theoretical model." Yang Xiaoman pondered for a while and said quietly, "er... It's the scientific abstract concept of physical phenomena, reflecting the essence of matter in nature."

"Don't understand..." Xu mang one face confusedly shook his head: "can you be more popular?"

"In the case of high Tc superconductivity, you need to establish a physical and mathematical relationship to derive the relationship between the variables." Yang Xiaoman said, "do you know why I came to you?"

"Good at math?" After a while, Xu answered, "there is still a long way to go."

"No!"

"It's because of your brilliance in materials science that people are staring at you." "The most embarrassing situation in condensed matter physics is the lack of theoretical models of high-temperature superconductors, so far we don't know what the mechanism of high-temperature superconductors is."

"It also leads to the exploration of superconducting materials, which is a game of luck." Yang Xiaoman white one eye: "let you pretend to force, now pretend to be in trouble?"

Damn it!

It sounds like trouble.

At this time, Xu Mang's face was as gray as death.

"Ha ha."

"Don't think it's over." Yang Xiaoman sneered: "at present, even the pet of high-temperature superconductors, copper oxide superconductors have no consistency theory, is it more desperate now?"

Sleeping trough!

Xu mang is completely autistic.

Make soy sauce!

The next day,

the next day,

on Saturday morning,

with a relaxed mind, Xu mang came to the condensed matter physics laboratory not far from the Physics Department building, which is an underground laboratory.

Putting on his white overalls, Xu mang slowly opened the door. Seeing Professor Fan and three students, one male and one female, he said with a smile, "here I am!"

“？？？”

“？？？”

“？？？”

Why is he here?!

Professor said that the mysterious team member is Xu mang?

The former three members were told that today, there is a member of the group with a huge background. This person has an absolute voice in the fields of mathematics, physics and materials. He is an all-round genius.

However,

the three members are skeptical of Professor Fan's words. How can such talents appear in the world? It's not online novels.

Now it seems that Professor

is right.

Xu Mang's mathematics does not need to be explained too much. He has already taught physics students advanced mathematics. In physics, that academic paper on self torque of light is enough to make a face. Now he uses the database he developed.

"Xu mang."

"Very energetic?" Professor Fan said with a smile: "I hope you can keep this mentality in the future, because in the field of high-temperature superconductor, you need to endure loneliness."

"Hey, hey."

"What are you doing, professor?" Xu took a look at the large-scale equipment in the laboratory and asked curiously, "why is the equipment of condensed matter physics so high-end? Our theoretical physics major is just a pen and a piece of paper."

"You can't say that."

"There is no distinction between high and low in scientific exploration." Professor Fan said.

Xu mang is helpless,

there is nothing wrong with saying this, but his heart is very twisted.

After that, Professor Fan took Xu mang to visit the laboratory and explained to him the equipment in the laboratory.

"This is a dynamic signal analyzer, which is used to test and analyze dynamic transmission characteristics."

"This is a thermogravimetric analyzer that measures the weight of a sample as a function of temperature or time.""This is a precision ion thinning instrument for the study of superconductors, devices, thin film cross-section structures."

Professor Fan explained it carefully, but Xu mang could only understand one third of the content.

"Professor?"

"Are all these instruments made by ourselves?" Xu asked curiously.

Professor Fan shook his head and said with a wry smile, "they are all imported."

"Oh..." Xu mang nodded, and did not feel unexpected. Precision instrument manufacturing is indeed our short board. There is no inferiority complex. What we do is to shorten the gap.

Soon after visiting the laboratory, Professor Fan led Xu mang to the rest room. The layout of the rest room was very simple, including a table, a few chairs, a water dispenser, and several computers. There was nothing else.

"Xu mang."

"We're looking for new copper oxide superconductors right now, but we don't have a clue." Professor Fan said, "there is no way to find you."

Speaking of this,

Xu mang said in a hurry: "Professor Fan... Yesterday I asked my girlfriend to find out about the situation. She said that it is impossible to establish a theoretical model of high-temperature superconductivity. I feel that with my ability, I can't subvert the world for the time being."

"It's my fault."

"Maybe I wasn't rigorous enough at the time." "I'm not asking you to break through the natural limit. I hope you can find the potential element combination of cupoxy high temperature superconductors among many materials, and help us explore mines first," Fan said

"Ah?" Xu mang looks confused.

"It's about building a model."

"Which elements can be combined with copper oxide superconductors, which may lead to a more high-temperature superconducting phase transition, and what is the possibility?" Professor Fan said, "we can't do this job. Only you who are outstanding in mathematics, physics and materials can do it!"

......

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