Just five minutes after class, the circle of friends on the campus of Kim University was blown up by a physics class.

[Hold the grass, Lu Shen came to our physics class just now. 】

【Which course?】 】

[Zhang Zhongqing's quantum mechanics, which other course can it be. 】

[Hold the grass, the physics class of the land god? Which classroom ??? 】

[What time is it, class is already over!] 】

[Already out of class? Damn, can't these big bulls give a notice in advance? 】

There are a lot of people who mess around in college, but there are also many people who really know how to grasp opportunities, especially in the top five universities in China like Jinda, there are still quite a lot of top students.

For those students who are interested in further academic progress, this opportunity to listen to lectures will not be missed.

After all, such opportunities are hard to come by.

It doesn't matter if you don't understand it, many times even if you just listen to an idea, it's much more useful than holding a book and slowly gnawing on it alone. Because these things are often not learned in the classroom or in books......

After coming out of the classroom, Lu Zhou walked straight in the direction of the number of courtyards.

The only thing he wanted to do now was to record the inspirations he had generated.

In fact, evidence of the "mass gap" of strong interactions has been obtained in theoretical physics experiments and verified by computer simulations.

However, how to explain it from a mathematical point of view is still an unsolved mystery.

To put it bluntly, for most mathematicians, this is a complex physics problem. For most physicists, this is another mathematical puzzle.

The solution to this problem is likely to be based on the simultaneous discovery of new mathematics as well as new physics.

When faced with this problem, Lu Zhou did not dare to say that he was completely sure.

After all, strictly speaking, theoretical physics is not his field of expertise.

During his time at Princeton, his main research problems were largely focused on mathematics. Aside from the discovery of the 750 GeV signal, he basically has no more research results in the field of theoretical physics.

If he were in Princeton, he would have sought advice from Edward Witten or Dean Goddard, both of whom were experts in theoretical physics and had a deep understanding of unified field theory.

But now, he can only communicate with these old friends in the academic world by email. And many questions are difficult to explain in an email.

And the domestic side......

To be honest, it's a bit difficult to find someone to discuss this issue.

Mr. Yang, one of the founders of this field, was probably happy to discuss this issue with him, but at the age of nearly 100 years, Lu Zhou really didn't want to embarrass him.

Especially when he thinks of Professor Attiyah and his five-page paper on the Riemann conjecture, he has little expectation of it.

After all, age is like a curse for scholars......

"Are you on your own?"

Sitting down on the office chair and picking up the pen, Lu Zhou muttered to himself, stretched out his hand and wrote a line of text on the paper, describing the whole problem in the language of mathematics.

[Proof: For any compact single group G, there is a massive quantum Yang Mills field with G as the gauge group on R^4, and there is a mass gap ∆>0]

The tip of the pen lightly lit on the scratch paper, staring at the white paper with only one line of words written on it, and Lu Zhou fell into deep thought.

Although he is not particularly sure that he can solve this problem, he still has the idea of solving the problem.

First of all, this massive proposition can be split into two parts.

The proof of the first part can be done mathematically alone.

That is, to mathematically prove the existence of the solution of the Young-Mills equation or to find the general solution.

This part may not be of much use to physicists, who have already reached the conclusions they want through high-energy experiments and computer simulations, but it is of great significance for mathematicians to find a general solution to this system of equations.

As Edward Witten once said, if anyone can accomplish this feat, he and his work will be a milestone in the 21st century mathematics catching up with the theoretical physics of the 20th century......

Of course, after all, this sentence was said by a physicist who won the Fields Medal, and Lu Zhou has reservations about it. In his opinion, mathematics has its own trajectory, and he never thinks that mathematics needs to catch up with physics.

But if you have to be more serious on this topic, then you will go far away.

As for the second part, it touches on the more core content.

Namely, the proof of the mass gap.

If this proof can be completed, both the mathematical and physical communities will benefit greatly, because it will not only give birth to new mathematical methods, but also mean elucidating the laws of nature that physicists have not yet fully understood, and even proposing further theories based on them.

For example, the unification of strong interactions and electromagnetic interactions......

If it is really achieved, the entire physics community will take a big step towards the grand unified theory.

Time passed silently.

Faced with the mathematical proposition on the scratch paper, Lu Zhou, who was sitting at the desk, held a ballpoint pen, but did not write down a single number except for a series of ink dots.

It wasn't until almost six o'clock that the bell for the end of class in the next building floated outside the window, and Lu Zhou seemed to come back to his senses and wrote two lines of equations on the paper.

Then he stood up and left the office.

At the same time, in the office.

About two minutes passed.

Glancing at the door, seeing that Lu Zhou didn't seem to have any intention of coming back, Feng Jin, who was writing at his desk, stopped the pen in his hand and stood up.

From half an hour ago, he had noticed that Lu Zhou was sitting there motionless in a "daze".

He had been in this office for a while, and it was the first time he had noticed that Lu Zhou's face was revealing a certain question. out of such an expression.

Curious about what was the problem that stumped the tutor, he pretended to go to the water dispenser to fetch water, intending to pass by Lu Zhou's desk and lean over to see what was written on the paper.

Anyway, he is also a top student of the Golden University of Mathematics Academy, if he can help, maybe the tutor will be impressed by his ability?

However, the reality is harsh.

When he saw the equation on the paper, he was stunned.

【HΛ(L)=∑（ros）∑（c）·h^(c，c+1)+∑(columns)∑(r)·h^(r，r+1)+∑(i∈Λ(L))·h(i)】

【……】

Feng Jin: "......??? ”

Hold the grass, what is this writing?

At this time, seeing that the time was almost up, He Changwen, who was about to get up and go to the cafeteria to solve dinner, stood up.

Just noticed the junior brother standing at Lu Zhou's desk with a confused face, the doctor who was looking at Lao Cheng coughed and reminded.

"Don't mess with the mentor's stuff."

As if he didn't find this convincing, he added it later.

"It's going to be bald."

Feng Jin: "......"

Liu Siyuan: "......"

Han Mengqi: "......"