Untie...

Solved?!

Director Sun and Professor Guo were a little confused, and looked at Xu Mang with a serious face in surprise, and really understood what this sentence meant, reasonable... Just flipped through a few times, and at most read a few words, but Academician Xu Mang said that he had solved it.

What to solve?

Solve those intractable problems of klystron oscillators?

"Xu..."

"Academician Xu?" Director Sun asked curiously, "You... You just said that you solved all of them, solved those problems, yes... Is it a problem encountered by Professor Guo's team? This... There are quite a few of these questions, and you... Are you kidding?"

Xu Mang shrugged his shoulders and said indifferently: "The core of the problem you encounter is that you don't know or don't understand the role of scattering amplitude, I think... Professor Guo shouldn't be from this field, right? You were more forcibly dragged in, right?"

Professor Guo is a little embarrassed, unlike what Xu Mang said, he is really an expert in this field, but... He didn't expect that it would involve scattering amplitude...

"I..."

"I'm in this field... However, it is true that it is not related to the scattering amplitude. Professor Guo said helplessly: "Academician Xu... What the hell is going on?"

"Oh..."

"It's pretty simple. Xu Mang said indifferently: "Scattering amplitude is one of the core physical quantities of quantum field theory, and quantum field theory has been developed in particle physics with the vigorous development of accelerators, so scattering amplitude is a bridge between theory and high-energy experiments." ”

"I glanced at your papers. ”

"You seem to have thought of scattering amplitudes, but there's no research left... A traditional method is used to calculate the scattering amplitude. Xu Mang said indifferently: "In principle, it can be applied to the calculation of any circle chart, but with the increase of the number of outer lines or circles, the actual calculation is often very complicated. ”

Professor Guo nodded and said seriously, "Yes... We've thought of another way to have a lot of simplicity, but... We find that the greatest transcendence still exceeds simplicity and universality. ”

Xu Mang smiled: "Let me guess... You've used a treemap amplitude formula that contains any number of gluons. ”

Hearing Xu Mang's words,

Professor Guo was completely stunned, he didn't say that he used those methods at all, but Academician Xu directly got the answer, which... That's too much of an exaggeration, isn't it?

And Director Sun, who was standing on the side, was also frightened, although he was not an expert in this field, but he knew a little bit about it, and when he heard Xu Mang, he was able to analyze the method used by Professor Guo from the words of others, what kind of strength this was.

"Yes!"

"We did want to use a treemap amplitude formula with as many gluons as it wants... to understand amplitude and even quantum field theory. Professor Guo said seriously: "But... There are many problems in it, and we can't solve them at all. ”

"Of course!"

Because it has something to do with the mathematical structure of the amplitude in field theory. Xu Mang said calmly: "Generally speaking, the result of the amplitude of the circle graph can be represented by Feynman integrals, but the numbers that appear in Feynman integrals are not arbitrary, but correspond to the so-called phases in mathematics. ”

"So..."

"Common mathematical functions that do not appear in Feynman integrals, such as trigonometric functions, exponential functions, and double-log functions. Xu Mang said: "The Feynman integral is more of a multiple logarithmic function and a Riemann Zeta number. ”

"I see!"

"I think I know what the problem is. Professor Guo suddenly realized.

Xu Mang raised his head and glanced at it, and said slowly: "No... You still don't know, what I just said is just the surface, not the core... The reason is simple, because the correspondence of these amplitudes that you think of only takes into account the case of the outer line of the pure gluon. ”

"Let me ask a question!"

"In the supersymmetric Standard Model, in addition to gluons, there are quark particles, and the amplitude containing the outer lines of quarks is just as important physically. Xu Mang said calmly: "So... Is there a similar relationship between them in terms of maximum transcendence?"

This...

It's so hard to answer!

Professor Guo was lost in thought, thinking about how to answer Xu Mang's question.

"Uh..."

"I don't think it's likely. Professor Guo said: "First of all, the structure of quarks and gluons is very different, quarks are fermions, gluons are bosons, and secondly... The canonical group representations of gluons and quarks are also quite different. ”

"Gluons belong to the accompanying representation, while quarks belong to the basic representation, indicating that the two are very different in color structure. After Professor Guo finished speaking, he asked cautiously, "Academician Xu... What do you think?"

"With just a simple transformation of the color factor, the maximum transcendence of the quark amplitude and the gluon amplitude are exactly equivalent. Xu Mang smiled: "Of course... This is just a preliminary calculation of mine, and I have just calculated it in my mind and found that it is feasible. ”

“？？？”

“？？？”

What do you mean?

Just a little calculation in my head, this... That's a bit of a lot of calculation!

Director Sun and Professor Guo were a little overwhelmed, and the two of them felt a little puzzled by Xu Mang's words, from a rational point of view, this was simply impossible to achieve... But if this person is Xu Mang, there may be a possibility.

And that's just maybe...

"Are you feeling curious?" Xu Mang said with a smile, "That's it... I will solve this problem, and then you will solve it yourself, I will give you a maximum of one month, if it exceeds one month, the relevant progress still does not reach more than 30%, I will cancel the cooperative relationship with you, and at the same time will investigate the relevant responsibility. ”

"Of course. ”

"I'm just going to find out who it is... Behind the scenes, you guys got this project. Xu Mang said calmly.

Moment

The atmosphere in the office condensed, and Director Sun felt unprecedented pressure, and sure enough... Academician Xu Mang suddenly came here, definitely to solve this matter... This is basically over, and if it is investigated, it will implicate a lot of problems.

Then

Xu Mang suddenly got up and walked silently to the door, but after arriving at the door, he suddenly stopped and said to Director Sun behind him: "Director Sun... I have something that I need to communicate with you, and I hope you can come out for a while. ”

"Okay!"

Watching the two leave,

Professor Guo vaguely felt a hint of strangeness, he had heard that Academician Xu Mang proposed a plan to change the environmental framework, and it was unanimously approved... And today, he suddenly came here, is it related to changing the scientific research framework?

Possible!

This institute... There is a big problem, and this problem ... It is believed that a similar situation exists in various institutions across the country.

...

"Academician Xu?"

"You..."

"Do you have anything to do?" asked Director Sun.

"Oh..."

"Actually, there is nothing. Xu Mang said with a smile: "I heard that there is a big crack in your interior, I want to ask... What kind of rift is this rift, don't prevaricate me with some lies, this thing... In your city, it's not a secret thing. ”

“...”

"This..."

"Actually, it's because... Funding issues. Director Sun said cautiously: "Because of our funds... It's only enough to sustain two or three projects. ”

"Such a small amount of money?"

Xu Mang's face darkened, and he asked, "Since there is such a small amount of funds... Why do you have so many people in your research institute?"

"Because a few years ago our institute had six or seven projects ... It's just that over time, these projects have been completed, and the follow-up has not been connected, which has led to..."Director Sun sighed and said silently: "Academician Xu... We also have difficulties. ”

It may sound pitiful, but Xu Mang and Ben don't sympathize with him, because that's not the case... Just now he received Xiao Man's WeChat, and the content on it made Xu Mang a little helpless.

In fact, this question,

It's pretty much the same as the one I knew before... The root cause is that its relevant leaders blindly expand, do not consider the future prospects at all, take advantage of the availability of funds, set up various projects indiscriminately, and then recruit all kinds of people... Creates a feeling of strength on the surface, but fragility on the inside.

Any slight change in the environment can lead to a huge rift that cannot be repaired.

One more point,

Any researcher has a strong sense of belonging to a scientific research institution and has a good expectation for the future, and this premise... It is up to research institutions to respect talents in all aspects, increase their sense of gain, and value their ideas.

But it's a pity,

From the current situation, we can see a different scene, so there are many large-scale resignations from research institutes, and this happens to illustrate a reason, hoping to prove themselves and gain respect.

Oh, yes!

I came with a lot of hope, but I left in anger... Some of the vines that entangle between scientific institutions and talents will be removed, and then this opportunity will be used to clarify various relationships and achieve win-win and emotional resonance.

Thinking of this,

Xu Mang suddenly realized that he had left too much time for those people? Three months later, Xu Yang and Xu Man will be of age to go to nursery!

No way!

To come a surprise, a month... A month should be about the same, the next day when there is a sense of crisis, the action will begin, and a month later... That's basically the kind of person who does it, and there's a special kind of... A person with a hard head who doesn't hit the south wall and doesn't look back.

I'm sorry about that...

Xu's south wall is not made of bricks!

"Director Sun..."

"I want to ask you... Who gave you the klystron oscillator project?" Xu Mang's expression suddenly became serious, and he asked seriously.

"This..."

"This..."Director Sun glanced at Xu Mang, was silent for a long time, and said, "Academician Xu... I can only offer you a list, and in this list... There are quite a few people who have infiltrated the collider project and are seeking their own interests in it. ”

When Xu Mang heard this, he didn't feel any surprise, but if no one made small moves inside, he would be very surprised.

"Good!"

"You give it to me now!" Xu Mang's expression was still so calm.

however

Soon... Xu Mang is not calm.

Xu Mang: (* ̄〈 ̄)

I really want to take them to the mountains!

Kill them!

......