Lin Fan is sitting in a corner, with several thick books in front of him. Tomorrow he will give his first public class, about the strength of electron interaction in the twisted double-layer graphene structure, and just yesterday he
I find that my handling of a certain issue is questionable.
So he needs to solve the problems he encounters today. Although Lin Fan knows that the students coming tomorrow will not be able to understand his theory, he still decides to be perfect without any flaws. This is respect for others.
, but also respect for oneself.
"Professor Lin?"
At this time, a young student appeared, holding a book on the theory of relativity, standing next to Lin Fan nervously and with a hint of expectation.
"Well?"
"Is something wrong?" Lin Fan raised his head and looked at him curiously.
"Professor Lin Lin"
"I'm surprised to meet you here." The boy looked a little overwhelmed and said in a low voice: "Can you help me explain the symmetry of space-time transformation in the theory of relativity?"
Lin Fan glanced at the time, nodded his head, and said with a smile: "Sit down."
"Thank you." The student hurriedly sat down opposite Lin Fan, then took out a piece of material, handed it to Lin Fan, and said, "This is my conjecture about the interaction between particles and the exchange of virtual particles. Please tell me."
Take a look."
Lin Fan took the material and flipped through it casually. At the same time, the boy sitting opposite him became even more anxious.
“It’s a good idea.”
"But there are many problems." Lin Fan closed the material and said seriously: "You may not be proficient in the conservation of four-dimensional momentum, which also led to you not proving that two particles interact by releasing and absorbing one particle.
, as to whether this particle is real.”
"I can tell you with a very definite tone that the interaction between two particles cannot be the mechanism of exchanging a physical particle." Lin Fan said calmly.
Hearing these words,
The student in front of me was more or less helpless.
"Perhaps you can try a new subject." Lin Fan said with a smile: "Let me give you a basic reference. A particle with a point makes a circular motion around a uniform constant magnetic field, and another vertical magnetic field moves at a uniform speed. Always observe the ability
changing trends.”
The student was stunned for a moment, and according to Lin Fan's suggestion, he couldn't help but fell into deep thought. After a while, he swept away his previously depressed expression and said excitedly: "Thank you, Professor Lin!"
"But first you have to understand the conservation of four-dimensional momentum, otherwise it will be difficult to continue this topic." Lin Fan reminded: "Because you will discover the reference system and the motion reference system later, and you need to transform the relationship, from"
At this time,
The mobile phone placed on the table heard a notification tone from WeChat.
Lin Fan glanced at the phone screen and said helplessly: "I'm sorry that your Director Liu came to see me."
"Oh, Professor Lin, go ahead." The student nodded and said respectfully.
"Anyway, remember my words and solidify the foundation." Lin Fan stood up, picked up a few books on the table, turned around and left.
Watching Lin Fan leave, the boy took out his mobile phone and posted a message on his social platform describing his chance encounter with Lin Fan and describing the master's humility and elegance.
Physics Department teaching building,
In a large multimedia classroom.
This day is Lin Fan’s first open class at Shenda University. The content is about the intensity of electron interaction in the twisted double-layer graphene structure. In addition to the students who signed up to participate, there are also various leaders of Shenda University, physics
Some professors from the department, as well as experts and scholars who came here because of their reputation.
Liu Yun'er took her two children and sat in the corner of the professor's last row. In fact, she could have sat in the front row, but Liu Yun'er refused. Not only was she afraid of the children making noise, but also because this position was hers.
Husband's favorite position.
"I didn't expect so many people to come." Guo Li's belly has swelled slightly, but like Liu Yun'er, she put on a wide-body skirt to hide the changes in her body.
"I heard that many well-known professors came here to attend the lectures." Guo Lichong said to the good sisters next to her: "Oh, your husband is quite powerful. One open class can actually attract so many big names in the industry."
"Of course."
"I have spent nearly thirty years selecting this person." Liu Yun'er said with a little arrogance.
"cut!"
Just then,
A young man wearing a black suit walked slowly to the front desk, with a little confidence and pride in his eyebrows.
In the sea of applause that was enough to drown everything, Liu Yun'er looked at Lin Fan on the stage, and her emotions suddenly overflowed at this moment. She looked over with affectionate eyes, and her eyes were full of the figure she met for the first time. Time has not passed so quickly.
After reacting, he has become Professor Lin in the eyes of everyone.
Lin Fan stood in front of the stage, looking at the leaders, professors, and students below, with a calm expression, and said: "Quantum states have promoted the progress in the field of condensed matter physics from superconductors to topological insulators. In essence, their properties depend on electron density.
and electron interaction strength.”
"It is well known that a class of metamaterial platforms can allow materials to switch between insulating and superconducting states by adjusting their electron density in situ."
"However, I think that while the electron density remains unchanged, the electron interaction intensity of a type of super-normal material platform can be controlled through specially designed dielectric links."
Lin Fan's topic today has begun. He began to talk about his latest research findings in the field of condensed matter physics. Of course, taking into account cognitive issues, what he talked about today was based on the surface and only gave a rough outline.
The one-and-a-half-hour content is not boring. Lin Fan occasionally mixes in some jokes about mathematics and physics to lighten the atmosphere.
at last,
Lin Fan finished talking about all the content he had prepared for today. He hesitated and said: "This is about the electron interaction strength in the twisted double-layer graphene structure. It was about to end, but the school wanted me to make a speech.
.”
"You also know"
"I'm not very good at sensationalism, otherwise I wouldn't have been on the complaint list all the time. I heard that my ranking has not dropped even now." Lin Fan smiled and continued: "I firmly believe in numbers, equations, and logic.
You can dominate this world."
"But what are numbers? What are equations? What are logic?"
"I tried to explore, and ended up feeling endlessly depressed in the library until I met the most important person in my life. In the equation about love, I found the logic and numbers to seek the truth."
"today"
"It's all because of you that I can stand here."
"You are my success factor and my only factor."
"Thanks."
"Nice to meet you"
"I would definitely do it if I had the chance."
After the open class,
Lin Fan talked with several big guys in the field of physics about future project cooperation. Now he is a master in the dual fields of physics and mathematics.
After bidding farewell to those professors,
Just at this time,
Liu Yun'er hugged the two children and came to Lin Fan's side. She asked with a touch of tenderness: "What should we do in the evening? Eat at home or go out?"
"Of course I'm going home."
"In the morning, I bought all the groceries." Lin Fan smiled and took over the sleeping siblings, and said gently: "Can you get off work early today?"
"snort!"
"What's wrong with this?" Liu Yun'er rolled her eyes and said softly, "Let's go, let's go."