Scholar’s Advanced Technological System

Holding the grass?

Lu Shen?

Idol!

Seeing the person standing up, Zhang Zhongqing almost did not drop his glasses on the ground.

At the thought of the big sister sitting in his classroom and listening to such a half-day class, his mood at the moment was really shocking and happy, it was like a lottery. I was shocked that I didn’t notice it at all. The good thing is that I can go out with people and brag, and I am also a person who has given classes to the Nobel Prize.

However, although Zhang Zhongqing’s heart has mixed feelings, Lu Zhou did not feel anything.

The classroom itself is also one of the places for academic exchanges.

When he was in Princeton, he often asked his students to speak for themselves.

At least in his view, the exchange of academics is regardless of status and honor.

“Professor Lu, please.” Professor Zhang immediately made a gesture of please, and respectfully gave up the podium.

"It's not so polite, I just have a little thought."

Looking at his humility, Lu Zhou smiled embarrassedly.

It’s too late to continue to be a guest.

Moreover, he is not a person who loves himself.

Going to the blackboard and standing, Lu Zhou picked up a piece of chalk.

"This problem is not something that undergraduates can solve. In addition to a deep understanding of quantum chromodynamics, there is a need for deeper understanding of functional analysis."

After stopping for two seconds, Lu Zhou continued, "However, it is not as complicated as everyone thinks."

Saying, the chalk in his hand was printed on the blackboard, and Lu Zhou performed the calculation on the side of the blackboard.

"From the field theory, as a Feynman diagram, using the Feynman rule to calculate the scattering amplitude can be obtained..."

[im=(ig2/|p'-p|2+mφ2)2m^ss'·2mδ^rr']

[...]

"where mφ denotes the mass of the corresponding boson, and g comes from the coupling constant in the interaction Lagrangian. In combination with Professor Zhang's previous calculation steps, v(q) can be obtained from the scattering section..."

[v(q)=-g2/(|q|2+mφ2)]

Written here, Lu Zhou stopped the chalk in his hand, looked back at the lecture hall, or looked at the students who were forced or serious, and smiled and said.

“The above is fairly simple, but the next step will use some tricks.”

All students: "..."

Mmp!

Where is it simple? ? ?

Zhang Zhongqing, standing next to him, was also amazed.

It is not that he does not understand, but he can't believe it. Someone can actually push these things on the spot in such a short period of time.

Doesn't this person's calculations take time to brain?

If this is the case, it is too horrible...

Did not do any stay, finished the sentence of Lu Zhou, turned to face the blackboard again, understatement.

"Do inverse Fourier transform on it!"

The squeaking of the chalk rubbing the blackboard is getting faster and faster, and the Zhang Zhongqing expression standing next to it is getting more and more shocking. As for the students in the audience, they are watching the blackboard blankly. Even if they have already finished the textbook in advance, facing the complicated calculation process, it is also a look of disbelief.

At this moment, Lu Zhou did not notice their expression, and was completely immersed in his own world.

Admittedly, these are some very basic things, but there is no basis to the extent that they will appear on the examples or exam papers.

However, with the deep thinking of these basic problems, as the steps on the blackboard become more and more, the glimpse of his mind is becoming more and more clear.

Why do strong interaction forces only work at very short distances?

Or to put it another way, what makes the nucleus form a nucleus only at very short distances?

The answer is obvious...

[...]

[v(r)=-g2/4πr·e^(-mφr)]

The chalk in his hand stopped and looked at the calculations on the blackboard. Lu Zhou said slowly.

"Electromagnetic interactions exchange photons, and the mass of a photon is zero, so for electromagnetic interactions, v is proportional to 1/r."

"The nuclear force for the nucleus is the meson acting between the nucleus. The mass is about 200mev. The calculation can be estimated. Only the distance term is on the order of the negative fourteenth power of 10. It acts between the two protons. Nuclear force can offset the electromagnetic repulsion between protons and cause fusion reactions."

Applause began to sound from the first row.

Like the waves on the shore, spread to the back.

Professor Zhang, who stood next to him, also unconsciously raised his hand.

For most students, it may just be a lively one.

But for him, he saw a simpler solution to the nuclear force distance... at least more than the two that he remembered.

Unbelievable, these were completed in the field in less than ten minutes...

At this moment, the shock in his heart, I am afraid that only he himself is clear.

At the same time, on the podium.

Although the classroom has been filled with applause, the Lu Zhou, standing in front of the blackboard, is still immersed in his own world, so that when the applause stops, they are completely unnoticed.

For the previous simple question, the calculation is over.

However, the problem he is thinking about is not just this.

According to quantum field theory and quantum chromodynamics, the four basic forces and traditional particles can be unified.

For example, in different positions of time and space, the components of the electric field can be constructed as non-exchanged operators. When constructing the Hilbert space in which these operators act, traditional particles, such as electrons, can be reinterpreted as Dirac. The quantization of the field.

As a result, the difference between the field and the particle disappears.

Can a simple mathematical form, like the weinberg-salam-glashow weak electricity unified theory, describe the electromagnetic interaction and the weak interaction force in a unified way, describe the strong interaction, and combine it with the electromagnetic force Reunification?

Answering this question cannot solve the miniaturization of controllable fusion, and it is impossible to bring any degree of innovation to the existing controllable fusion technology. However, intuition tells Lu Zhou that if it can solve this problem theoretically, it may be solved. This question provides a clue, or ideas...

Of course, it is not easy to do this.

For example, strong interaction force and weak interaction force have a typical problem...

After the class bell rang, Lu Zhou was still standing there, seemingly thinking about something.

Seeing that Lu Zhou did not respond, Zhang Zhongqing was not good enough to announce the class, and even dared to disturb his ideas.

It’s been about ten minutes.

Staring at the simple calculations on the blackboard, Lu Zhou suddenly said to himself.

“How to explain the existence of quality gaps in mathematical language?”

Upon hearing this question, Zhang Zhongqing subconsciously squatted, and then blushing, like a student seems to have to support me for a while.

"...this, I really can't."

"I didn't ask you, you certainly won't..."

Speaking to himself, leaving a blackboard full of calculations, Lu Zhou turned away from the classroom, leaving a misunderstood professor and student.

No one can answer this question.

After all, this is one of the most difficult propositions in the field of particle physics about unified field theory.

At the same time, it is also recognized by the international mathematics community, one of the seven millennium problems...