Scholar’s Advanced Technological System

The class seems to have not started long.

Gently pushing open the back door and looking at the middle-aged professor with his back to the classroom board, Lu Zhou didn’t bother him and other fellow students, even didn’t bother to sleep at the door next to the sleeping buddies, just in the lecture hall. In the back row, I found an inconspicuous position and sat down in a low-key manner.

The inspiration is not to find the door to yourself, you have to find it yourself.

Lu Zhou agrees with what Fermi once said, thinking about why obvious problems are obvious and helps to deepen understanding of esoteric problems.

Whether this sentence is placed on Physics or mathematics, there are precedents to follow.

When I was in Princeton, Lu Zhou took time to give undergraduate students a few lessons, or occasionally went to other Professors’ classrooms to find inspiration.

For example, in the study of Goldbach’s conjecture, a number theory class of Fefferman Professor gave him a lot of inspiration. This is not because of what he said in class, but on the contrary, what he said at the time was just something that was very easy to understand…

Finished the blackboard book on the blackboard, the middle-aged Professor standing on the podium cleared his throat and said.

“Quantum mechanics is a very esoteric subject. If you really get to know it, its existence will even subvert your understanding of micro World, Physics, and even classic philosophy. Although I know my voice may be good. Help sleep, but I don’t recommend you go to sleep from the first class…”

There was a good laugh in the classroom, and Lu Zhou sitting in the back row couldn’t help but smile.

It seems that this Professor is also a young scholar with a little teaching level. At least not open the textbook and follow the preface of the PPT.

However, his voice is not Hongling may be a bad injury.

At least the buddy sitting next to Lu Zhou, there is no plan to wake up.

I glanced at the couple who had already woken up, and the few who had not yet woken up. The middle-aged professor shrugged humorously and did not care to continue to preach.

“We all know that the STAR-2 demonstration reactor in Haizhou some time ago was successfully ignited under the command of our school’s Lu-Professor. Our country’s controllable fusion power generation technology has also been at the forefront of World. Only one after another has built a commercial heap.”

Hearing this sentence, Lu Zhou, who was sitting in the back row, was embarrassed.

How can you tell me about a quantum mechanics?

This is not plasma physics.

However, the Professor on the stage is quite energetic. The students in the lecture hall are obviously interested in this topic. Even the buddy who is sleeping right next to Lu Zhou, lifted his head in a sleepy manner. Come, look at the podium with a stern look.

At this time, Lu Zhou noticed that the teacher’s name and phone number were written on the title page of the Quantum Mechanics textbook under his arm.

Zhang Zhongqing?

never heard of that……

“… According to public data, the STAR-2 demonstration reactor – or the current Pangu heap, the internal temperature of the core is as high as 1.3 billion degrees Celsius, which is nearly 9 times the temperature of the sun center!”

The students who looked at the exclamation in the classroom, standing in the heart of Zhang’s Professor on the stage, knew that he had succeeded in catching the attention of the students, and immediately hit the railway.

“The temperature, the general material is certainly unbearable. So our country’s STAR-2 demonstration reactor uses a magnetically constrained way to constrain the enthalpy mixture of the ionized state I involved in the reaction in a closed magnetic cage. “”

“The question is coming, I want to ask fellow students why the controlled fusion requires such a high temperature to react? Or in other words, why does the fusion reaction not work at room temperature?”

The classroom was quiet.

The buddy, sitting next to Lu Zhou, curl one’s lip, whispered.

“Is this nonsense?”

Just hearing this spit, Lu Zhou raised his eyebrows with interest and was about to ask him what he had. But before he even waited for Lu Zhou to speak, he continued.

“…If this can be done at room temperature, it is not something that can be nuclear fusion.”

Lu Zhou: “…”

“Which fellow student can stand up and talk?”

After sweeping the classroom where no one raised his hand, Zhang Professor, who stood on the podium, had to add one sentence. “This question has a normal result.”

Shua shua shua !

When I heard the usual results, more than half of the people in the classroom immediately raised their hands.

“I know!” got the Teacher’s instructions, sitting in the first row of glasses, the female Study tyrant stood up and replied quickly, “Because the nucleus is positively charged, there is a Coulomb repulsion between the nucleus and the nucleus. Only when the two nucleuses are close enough can the strong interaction force overcome the Coulomb repulsion and polymerize the two nucleuses. In the macroscopic view, only by increasing the heat in the system and accelerating the thermal motion of the molecules in the system can Make the nucleus collide with enough kinetic energy to cause a fusion reaction.”

“The answer is good,” wrote a score on the roster. The middle-aged Professor cleared his throat and smiled and continued. “So the question is coming, have you ever thought about why the strong interaction is only in the pole? Can it happen under a short distance?”

“Because… is a short-range force?”

“This is the explanation of the high school physics textbook, and it is no different from saying nothing,” Zhang Professor laughed, indicating that the student who stood up and answered sat down and continued, “You are now a big student, except you should know.” What’s more, you should know more about ‘why’.”

“Quantum field theory tells us that the interaction between particles is not a super-range effect, but is carried out by using a boson as a medium. For example, electromagnetic exchange is a photon, strong interaction is a gluon or a meson, weak Interactions exchange W and Z bosons… Some people may ask, what does this have to do with the scope of the force we are talking about?”

Said, Zhang Professor turned to face the blackboard, while writing and preaching.

“Setting the scattering between two resolvable fermions (p + k → p “+k”), then under the Berne approximation, we can find that the scattering cross section and the interaction can have the following relationship…”

[=-iV(q)(2π)δ(Ep”-Ep), (q=p”-p)

[…]

who am I?

where am I?

Looking up at the calculations on the blackboard, the buddy sitting next to Lu Zhou looked suspicious and wondered if he was sleeping in class.

“Fuck? Isn’t it about nuclear fusion? Today is the number.”

It’s just two seconds of being out of the way, but he has the feeling of missing a course from semester.

In fact, it is not just him.

The person sitting in the classroom can understand less than half of what the Professor said on.

I looked at the sullen buddy next to him, Lu Zhou laughed, and asked softly.

“I want to know?”

“Think… can you understand?” The buddy looked at Lu Zhou with a stern look, probably because he didn’t wake up, and who didn’t respond to the person sitting next to him.

Lu Zhou laughed said: “If I want to, then I will teach you.”

Stopped the chalk in his hand, Zhang Professor turned around and looked at the sturdy students, his mouth curled up.

It is normal to not understand.

Quantum mechanics is itself a difficult point in Physics.

Especially when it comes to calculations, it doesn’t work without a certain mathematical foundation.

Speaking of himself, it is no problem to remember a conclusion, but if he is allowed to calculate on the spot, it may not be possible to calculate it before class.

“The calculation process is very complicated,” he threw the chalk in his hand on the desk. Zhang Professor’s hands were behind him, said with a faint smile. “Who can complete the rest, the usual course of this class.” I will give him all the results, and this class will not be used in the future.”

The quiet in the classroom is dead.

Student look at each other in dismay.

It’s just that the graduate students who are absent from class are also awkward.

Zhang Professor shook his head with a smile, and when he planned to put this question as a question, a sound came from the back of the classroom.

“Can I use the blackboard?”

Zhang Zhongqing: “…???”