Scholar’s Advanced Technological System

The class seems to have not started long.

Gently push open the back door and look at the middle-aged professor who is facing the classroom board. Lu Zhou did not bother him and other classmates who were listening to the class, and did not even disturb the buddy who was sleeping next to the door, just behind the lecture hall. 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 some obvious problems are obvious and helps to deepen understanding of those esoteric problems.

Whether this sentence is placed in physics or mathematics, there are precedents to follow.

When I was in Princeton, when I encountered a problem that I couldn't understand, Lu Zhou would take time to give a few classes to undergraduate students, or occasionally go to other professors' classrooms to find inspiration.

For example, in the study of Goldbach's conjecture, Professor Fefferman's number theory class 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 profound subject. If you really go deep into it, its existence will even subvert your understanding of the microcosm, physics, and even classical 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 kind laugh in the classroom, and the boat 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 ppt.

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

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

After glance at a few who had already woken up, and a few who had not yet woken up, the middle-aged professor shrugged his shoulders humorously and continued to preach.

"We all know that the star-2 demonstration reactor in Haizhou some time ago was successfully ignited under the command of Professor Lu of our school. Our country's controllable fusion power generation technology has also been at the forefront of the world. The only country that has built a commercial heap."

Hearing this sentence, I was embarrassed when I was sitting in the back row of the class.

How can you tell a quantum mechanic to pull him?

This is not plasma physics.

However, the professors on the stage were very energetic. The students in the lecture hall were obviously interested in this topic. Even the buddies who were sleeping right next to Lu Zhou raised their heads with sleepy eyes. Come, look at the podium with a stern look.

At this time, Lu Zhou noticed that the teacher’s name and telephone 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 130 million degrees Celsius, nearly nine times the temperature of the sun center!"

Looking at the students who were screaming in the classroom, Professor Zhang, who stood on the stage, was delighted to know that he had succeeded in catching the students’ attention 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 the students, why does the controlled fusion require such a high temperature to react? Or in other words, why is the fusion reaction not carried out at room temperature?"

The classroom was quiet.

The buddy sitting next to Lu Zhou snorted and whispered.

"Is this nonsense?"

Just hearing this spit, Lu Zhou raised his eyebrows with interest and was planning to ask him what he had. But before he even waited for the opening of the boat, he continued.

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

Lu Zhou: "..."

"Which class can I stand up and talk about?"

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

Hey!

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

"I know!" got the professor's instructions. Sitting in the first row, the female schoolmaster with glasses got up and replied quickly. "Because the nucleus is positively charged, there is a Coulomb repulsion between the nuclear 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," Professor Zhang smiled, indicating that the student who stood up and answered sat down and continued. "You are already a college student, except you should know." In addition to 'what', 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, Professor Zhang turned to face the blackboard, while writing and preaching.

“When scattering occurs between two resolvable fermions (p+k→p\'+k\'), under the Berne approximation, it can be concluded that the scattering cross section and the interaction can have the following relationship...”

[<p\'|it|p>=-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 suspiciously, wondering if he was sleeping in class.

"Watch the grass? 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 semester course.

In fact, it is not just him.

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

Looking at the buddy next to the face, Lu Zhou smiled and asked softly.

"I want to know?"

"Think... can you understand?" The buddy looked at Lu Zhou with a stern look. It might be because he didn't wake up. He didn't respond to who was sitting next to him.

Lu Zhou smiled and said: "If I want to, then I will teach you."

After stopping the chalk in his hand, Professor Zhang turned around and looked at the students who were so eager, and his mouth curled up.

It is normal to not understand.

Quantum mechanics itself is 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. Professor Zhang said with his hands behind his back and smiled. "Whoever can finish the rest, the usual grades of this course." Give him all, and this class will not be used in the future."

The quiet in the classroom is dead.

All the students face each other.

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

Professor Zhang 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: "...???"