Chapter 421: He is Professor Xu Mang (2/3)

To solve the multi-particle problem in atoms, Xu Mang knew that there was a method called Self-Consistent, an equivalent mean field. For an electron, it can be considered to be moving in a force field, which is The average effect of other electrons and nuclei on it.
Xu Mang thought of this, silently stepped onto the stage, stood in front of the blackboard, picked up the chalk, and began to solve the multi-particle problem in atoms. The approximate method was to assume the ground state wave function of the atom and approximate the electron wave function product. Mang obtained the expression equation of Hamiltonl quantity.
The emergence of the equation allows the latter problem to be solved. Under the condition of normalization, the extreme value of H is found... Then endless calculations.
at this time,
The students in the audience were going crazy. Looking at the back of the boy in front of the blackboard, and the equations and calculations written in chalk in his hand, he was actually solving the problem raised by the professor, and he looked like it.
"Oh my god... how did he do it?" A student looked at the blackboard with ever-increasing content. The calculation process was so complicated that it was suffocating and terrifying. Is this a student? A freshman in college?
Is that the same for the professor?
Professor Jeff stood on the side, watching Xu Mang swaying his skills to the fullest, showing a slight smile. Fortunately, he found Professor Xu Mang Xu in advance. Good fellow... such a cow is hidden among the students. I don't know what he thinks.
The calculation continues,
Soon Xu Mang completed the content of a blackboard, he moved the upper board down, and proceeded to calculate.
but...
As the content continues to increase, the students below are about to collapse, and their minds can no longer keep up with the calculation process of this great god. His calculation speed is too fast to keep up with the updated content.
"Danny...you are the best of us, how do you think you compare to him?" A girl asked the guy with long hair next to him: "What level is this guy up to?"
"Sorry."
"Yalman... I was so vulnerable in front of him." The long-haired boy saw the young man on the stage, and then looked at the calculation process written on the blackboard, and felt a great sense of frustration. He is already on the verge of autism.
This Danny showed extraordinary talents in physics and mathematics during high school. The local media also reported crazy, and then successfully entered Columbia University physics major. With his strong talents, he quickly established a foothold among freshmen. .
But... today I met a non-human creature that looks like a human.
"His talent in mathematics scares me..." Danny said seriously: "There are some things in it. I even came across it for the first time. I can't imagine how he can do such a fast calculation speed. I think ...There is only one existence!"
"What's the existence?" the the side asked.
"This guy... is not a normal person." Danny smiled helplessly: "The neurosis that has not been cured can only be achieved in a wild fantasy, otherwise... I can't think of a second possibility. ."
Hearing the words of the long-haired boy Danny, the girl looked at the figure in front of her.
The genius is on the left, the lunatic is on the right.
Who is he?
At this time,
Many students noticed Professor Jeff's expression. He appeared so calm and calm. It seemed that he didn't feel anything at all for the genius around him, as if all of this was taken for granted.
Could it be...the two know each other?
Otherwise, why would Professor Jeff be so expressionless?
"Ugh!"
"I feel... this figure is very familiar, is it an illusion of mine?" A black classmate said: "I seem to have seen this figure not long ago, really...I really did, but just want to I can’t see it anywhere."
"Then you mean nothing." The white man beside him was speechless at the same time.
"No!"
"I really saw it. I swear to God." The black classmate said seriously: "And it's just in the near future."
in fact,
This is not the case for the white classmate next to him, but unfortunately... just can't remember who he is. If he is a celebrity, he must know who he is. Unfortunately... he is not a celebrity.
Xu Mang is still working hard to calculate, but is about to enter the final stage.
One minute later,
Xu Mang obtained a very long formula and a complex conjugate equation, but the self-consistent equation at this time is an equation satisfied by a single electron wave function. Although it is a little simpler than the wave equation, it is nonlinear after all. Differential and integral equations.
It could be simpler!
Xu Mang began to approximate gradually, using an appropriate central field instead of the long previous formula. After calculating the single-electron wave function, he brought the obtained wave function into the central field, and calculated its value, which was different from the original To compare the values ​​of, and then fine-tune the center force field.
This process... is slightly time consuming.
Because it must be within a required accuracy range, the center force field must be consistent with the calculated center force field.
When Xu Mang is trying to reach agreement,
The students gradually awakened from the shock. As the answer gradually approached, the whole process became clearer and clearer. Only then did the students really realize the horror of Xu Mang.
"..."
"..."
"..."
Can this be calculated?
How is this done?
five minutes later,
Xu Mang has finished all the calculations, and has proved its physical significance in fine-tuning the central force field.
"Ahem!"
"Attention... this process does not take into account the electronic exchange anti-symmetric requirements." Xu Mang came to the first blackboard, pointed to the product of the electronic wave functions, and said seriously: "If you consider the electronic Exchange the antisymmetric requirement, then the quantum state of each electron should be shown here."
"of course..."
"Due to the limited time, I will no longer prove the anti-symmetric nature of the exchange of electrons in the wave function of the multi-electron system." Xu Mang said with a smile, "You will be exposed to it in the future."
This...
This...
Who is this guy?
"Professor Xu!"
"Thank you for your on-site teaching." Professor Jeff said with a smile on Xu Mang's face: "Unexpectedly, I could catch you alive here."
"???"
"???"
"???"
what?
Professor Xu?
He... is he a professor?
I don't want to, he is more like a student, right?
at this time,
Xu Mang was also horrified. He was actually recognized. What about the blindness of East and West? Why doesn't it work suddenly?
"I remember it!" A girl stood up excitedly and pointed at Xu Mang and shouted: "Professor Xu Mang, an authority in the field of superconductivity and black holes, one of the judges of the Future Science Award, and an outstanding physics leader By."
Words fall,
There was an uproar on the scene, everyone knew who this young man was.
No wonder it's so familiar. Before, it was all his reports on the Internet!
among them,
The most exciting thing is that the girl named Casey actually got the guidance of Professor Xu. At this time, she glanced at the equation in her notebook, and was more determined to go on this physical path of no return. .
anyway,
Professor Xu is too narcissistic, right?
And got married...
at this time,
Most people are still in surprise. It is not easy to meet Xu Mang after all. The most important reason is that he is a foreigner. Unless he goes to China on the west coast of the Pacific to meet him, there is no special situation. Basically not seen.
Happiness!
There was applause, with a look of respect.
quickly,
The noisy classroom returned to calm.
"Professor Xu."
"There is still an hour left." Professor Jeff smiled: "Can you diminish your views on the future and your latest trends?"
Future views,
What's new...
Xu Mang thought for a while, and said with a serious look: "Learn physics well and go to the universe!"
"ended?"
"ended!"
Suddenly,
The students present looked depressed, is this too perfunctory?
"Ahem!"
"Professor Xu...then why, let's talk about your latest trends?" Professor Jeff asked: "You bought MIT's laser interferometer at a price of 100 million. This is to enter the field of gravitational wave detection. ?"
"correct!"
"The construction of the laboratory has been completed, and I have received letters of plea from all over the world, hoping to participate in this detection project. Now the personnel have been basically scheduled, and it is estimated that the gravitational wave detection will be officially launched in April." Xu Mang said.
"Then do you have the confidence to be the first to detect it?"
this problem...
There is a little temptation to enter the pit.
But Xu Mang doesn't matter. There are only two devices in the world, and they were bought by his old husband. How can other people compete? He is two years ahead of them. Why can't you scream?
"of course!"
"It was for the Nobel Prize in Physics." Xu Mang said with a smile.
Although there is a little arrogance, many people here are willing to believe that Xu Mang can win the Nobel Prize in Physics. Professor Xu Mang Xu’s research has found that he is fully qualified to win the international award, but he has not received any awards so far. It is indeed regrettable.
how to say...
Many international awards owe Professor Xu a trophy.
"Actually I am like a human..."
At this time,
A song "Poultry You Are So Beautiful" sounded. Xu Mang glanced at Xiaoman's call again, and silently hung up her.
"Then what..."
"I'm sorry I have to go." Xu Mang said awkwardly and politely: "Come back next time when I have time, Professor...bye!"
"Ok!"
Of course Xu Mang walked to the door, stopped suddenly, turned around and said to the students present: "Goodbye, classmates!"
moment,
Xu Mang's figure disappeared from his vision.
The students present know that the next time they meet, it may be at the Nobel Prize in Physics ceremony.
...
"Asshole!"
"where are you?"
at this time,
Yang Xiaoman finally got through Xu Mang's call, and the anger accumulated in his heart, roared at him: "After making so many calls to you, you didn't answer any of them...Are you going to die? Are you tired of living? I don’t know who is listening to at home?"
Xu Mangxin smiled awkwardly: "Then what... the situation was quite special at that time, and there were all people around... I can only hang up you, this is not... just escaped."
"cut!"
"Anyway, you're dead!" Yang Xiaoman snorted coldly, and said grimly: "Now come to the general office of mathematics ~ EbookFREE.me~ if you don't know the way, just inquire."
"Oh..."
After hanging up,
Yang Xiaoman looked up at his cousin and said with a smile, "He's here."
Since they spoke Chinese in Chinese, many of the professors present did not understand it. However, Xiaoman's cousin could hear her clearly. At this time, her face was covered with the word ‘fear’.
This...
Is this the Xiaoman I know?
"Professor Mu?"
"What's the situation now?" A professor hurriedly asked, "Is Professor Xu Mang here?"
Cousin Xiaoman looked around at the crowd, nodded helplessly and said, "He...he will be there soon, don't worry."
......