For Junxin, this meal can be said to be a bit inexplicable for the time being, but according to the understanding of several professors present, I know that they are not the kind of people who like to talk about gossip, so naturally they don't take these to heart, so although they are a little unhappy about it in their hearts, they don't show it, but they turn the topic to scientific research issues, and naturally bring this unpleasant and heavy topic over.

"How far has superstring theory been studied lately?" Junxin asked Horowitz, who was sitting next to him, and the two of them were the youngest in this room, so they naturally sat together.

Horowitz had not spoken all along, and in fact he was not a person who liked to talk, except when he was researching scientific research problems. At this time, after hearing Junxin's question, he put down the question he was thinking about in his heart and replied: "During this period, with the cooperation of our string theory research group and Professor Schwartz, and after the publication of the inference of string theory, most of the theoretical physicists in the world, especially scientists in high-energy particles and field theory, have begun to study this aspect. Of the theories that have been fully discovered and published, four have been accepted by most scientists, and can be read in Physical Review if you have time. ”

"Oh, it's still a good progress!" Junxin lowered his head and chuckled.

"In fact, during this period, there are far more than four string theory models discovered, but other theories are more or less mathematical or quantum mechanical inconsistent, so many people are still making further modifications to the model they proposed, maybe today, maybe tomorrow, maybe a new model will come out, and then it will be verified to be correct."

"Four is already very good!" Junxin didn't react much to what Horowitz said. Any graduate student in theoretical physics in later generations, even if he does not focus on the physics of high-energy particles or quantum mechanics and the theory of relativity, knows that in the first revolution of superstring theory, there were as many as five models of superstring theory.

There are four correct theories that have been verified today, and a fifth can appear at any time. In this case, Junxin knows that the content and tasks of the first superstring theory revolution have basically been completed, but the finishing work will probably take a long time.

The first revolution in superstring theory in history took about two years to complete the task, but because of the self-consistency of the five models, superstring theory could not always have a single explanatory nature, so after the first revolution in superstring theory, it was quickly abandoned by people and turned to other unified force field theories.

"What were you thinking about just now?" Junxin asked, interested in what Horowitz had just been thinking about.

"I'm thinking about the uniqueness of superstring theory!" Horowitz didn't make any detours, but spoke directly about what he was thinking.

"That's what I've been thinking about lately!" Professor Witten interjected.

Professor Strominger and Professor Chandler on the side also nodded slightly. Junxin had to sigh that the more excellent scholars were, the more they were able to skip the question and see the problem itself when others were still studying the answer to a fixed question.

"Looks like you're thinking?" Professor Faltins, who had not spoken, suddenly spoke. Although his major is only algebraic geometry, with his mathematical attainments, he also has a very unique view of physics, so he likes to participate in many physics seminars, and even brings Professor Mirno, Professor Thurston, Professor Feverman, etc. to participate in the brainstorming activities organized by Professor Dyson, the director of the Institute for Advanced Study in Princeton.

"I don't necessarily have any ideas, but I just think of a classmate!" Junxin smiled and said, "When I was at Mizuki University in China, there was a classmate who was studying a question called kink raised by physicists, which gave me some inspiration!" ”

"Kinks?"

"Well, kink problem!" Junxin answered Professor Feverman's question in the affirmative, "Don't care how many knots there are in the kink problem, and then make a kink change is a common method proposed in the world to solve the kink problem. ”

"My classmates are working on kink invariants, and as far as I know, have achieved some very good results. But we won't mention his work for now, but his research has inspired me. ”

"Is the problem of string theory, like kinks, that there is actually an invariant, and under the action of this invariant, different superstring theoretical models are formed due to different pairs of bosons and fermions?" Jun Xin's eyes looked at Professor Thurston, who was still there, after all, his toys were the closest to what Jun Xin had just thought.

"This question can be mathematically accurate to answer, and it requires a lot of calculations, even if I do it, I'm afraid it will take a long time to do it. But I can take a moment and make a simple estimate. Professor Thurston, who received Jun Xin's gaze, naturally understood what Jun Xin meant, so after touching his chin and making a simple judgment, he nodded to everyone present and said.

"On the other hand, I think another reason is that there may not be such a constant as a kink invariant, but that there is a much larger model of physics, which includes the theoretical models in the cases we mentioned, or simply because of the difference in values, which leads to some limit cases where these possible models are a huge model!"

"This, this can't be, right?"

"Is there any theoretical inference?"

"How do you think that?"

……

As soon as Junxin's words fell, there was an uproar in the office, no one thought that Junxin's imagination was so rich, which was something they had never thought about at all now. Even Professor Witten, who has been studying superstring theory for a long time, and a few others have never thought of such a method.

Physicists, or mathematicians and physicists, have always sought mathematical self-consistency rather than sensory thinking when solving theoretical problems. And the two problems that Junxin just mentioned are exactly what they haven't thought about. Because this is something that cannot be pushed down from an existing model. Their research direction is largely to set new reference values, and then exclude other models from there, leaving the last one on the basis of the real model.

"Just try it?" Junxin didn't say much, because with the current level of mathematics, there are still some key things that have not been published. It's not like you can get through it. So Junxin didn't distinguish anything, just shook his head and mentioned it, and didn't argue too much on this issue.