"Professor Junxin, do you think that superstring theory is a new physical theory that can become a unified theory in the future?"

This is not very accurate, but I can still answer your question, yes, in my understanding, or according to my research and calculations, I think that superstring theory will be the focus of theoretical physics research in the 21st century, that is, the main research direction of the grand unified theory. Also, this beautiful lady, I'm not a professor yet, you can just call me by my name, my name is Junxin, you can call me Jun, or Junxin. ”

As expected by Junxin, after Junxin gave a special report on superstring theory, there was a heated discussion on the scene, and the students and professors of Penn University had completely different views on the relevant research results and evaluations of superstring theory given by Junxin.

Some of the students and professors agreed with Junxin's point of view, because there is nothing wrong with the equations and functions constructed by Junxin to explain the superstring theory, on the contrary, although the solution of this equation or function is a little uncertain, but the general idea is correct, so they agree with Junxin's point of view and show great interest in the superstring theory proposed by Junxin.

The other part of the students and teachers hold a negative view, they believe that the view of Junxin's explanation comes from the change in the basis of quantum mechanics itself, and although this change has rigorous mathematical derivation and equations, there are also too many artificial things such as some assumptions in equations and functions, in other words, what Junxin says may not be verified by experiments in a short period of time.

Junxin can see that as a science and engineering major, the majority of Penn students who are biased towards engineering obviously disagree with Junxin's views, and only one-third of them agree with Junxin's views.

However, whether or not he agrees with Junxin's views, Penn still achieves the spirit of academic freedom and does not interfere with Junxin's teaching of relevant views on superstring theory to Penn students. That's why there is the opening scene.

"Excuse me, Professor Junxin, ah, sir! Mr. Junxin, as far as I know, string theory first appeared to explain the problem of strong interactions, but the reason why it was abandoned was because of the rise of quantum chromodynamics later, and the perfect explanation of the cause of strong interactions, so what do you think of this problem? Someone else asked.

Jun Xin nodded to the person who asked and said, "The quantum chromodynamics of the QCD mass generation mechanism established by Professor Higgs explains strong interactions, and there is nothing wrong with this. As for its impact on superstring theory, I don't think the question is a problem. It is important to know that the relevant content of supersymmetry theory contained in superstring theory actually contains the basic assumptions of quantum chromodynamics. ”

"If you need to make a comparison, then I can give you an example. As we all know, the theory of relativity is a theory made by Mr. Einstein in order to solve the problem of gravity, and after our experiments, except for the gravitational wave problem predicted by Mr. Einstein, which has not been verified until now, the others have been verified by experiments. Therefore, we can consider the theory of relativity to be a correct theory of physics. In contrast to quantum chromodynamics, which solves strong interactions, relativity solves the problem of gravity. But the ultimate requirement in superstring theory is to include gravity. So there's nothing in your question, and I can assume that quantum chromodynamics is correct, and that's part of a physics theory that, like relativity, is contained within the larger framework of superstring theory. ”

……

As the questions continued, Junxin was busy using his brain to think about the questions raised by these Penn elites, and did not notice that Professor Ham, the chairman of the Penn Professors' Association, and the famous educator Whitney Carlvinson, the president of Penn, were talking in a whisper.

"Professor Ham, what do you think of the content of Jun's speech?"

"I have to say, Mr. Principal Whitney, I know all the equations that appear in your speech, but when they are connected, I don't know what they mean." Professor Ham shrugged his shoulders and said, "You know, I'm an engineer, not a theoretical scientist. ”

Principal Whitney hurriedly said, "I know this, but as far as I know, scientists want to know a person's level, maybe just by the method he uses to solve a problem, can he?" ”

"If you say so, I can indeed draw my conclusions." Professor Ham shook his head and said, "The method used in Jun's lecture is quite subtle, and in fact, I may not be very clear about the principles of supersymmetrical chord theory, but it is certain that his level is indeed world-class, and it is not just his luck that proves the Modell conjecture, and he does have the strength." ”

"Mr. Gu Yuxiu has come to me in the past few days and recommended Jun to me, and he hopes that Jun can solve some problems in mathematical applications in his former laboratory. So I'd like to hear what you think of Jun! Headmaster Whitney looked at Professor Ham and said in a serious tone.

Professor Ham nodded knowingly and said, "I see, you need me to make a professional assessment of Jun from the business point of view so that you can make a decision, right?" ”

Principal Whitney smiled and nodded.

Professor Ham shook his head and said, "I will carefully evaluate your request. However, in my current opinion, Jun's ability is completely fine! ”

"Science always has something in common, just like you just said, the ideas and methods used by scientists to solve problems can show a scientist's ability. This applies not only to theoretical scientists, but also to scholars in experimental and engineering fields. Putting aside the methods used by Mr. Junxin in solving his so-called superstring theory, just by answering the questions on the spot, you can see some of his methods and ideas when researching the problem, I don't know if his experimental skills are the same as Yang's, but I heard that he once solved the problem of quasicrystals in the chemical crystallography laboratory, so I think his business is no problem! ”

"Can this be taken as your formal conclusion?" Whitney asked.

Professor Ham said: "It's not a formal conclusion yet, but I don't think it's any different from this one!" ”

President Whitney nodded and said, "In that case, then Gu's recommendation will be agreed, and after the speech, you can invite him to be a visiting scholar in our electrical and mechanical engineering laboratory at the University of Pennsylvania." ”

"I think he'll gladly accept the position!"