Chapter 256: Yes, it’s time to get old
Xu Qingzhou was calm and composed, grabbing the food and eating it deliciously.
Xu Zhengyang looked weird, a bit like beating himself up, always giving Lao Xu a pretense to show off.
Kong Xianbo shook his head and sighed in his heart, Lao Xu is still Lao Xu, and he has a good taste.
Chen Shiqi covered her mouth and smiled, feeling the depression that Xu Zhengyang said, and asked: "Why are you alone, where is Song Yao?"
"She had lunch with her roommates. Classes had just ended at this time."
Xu Zhengyang was confused: "It's exam week, and there are still classes in the School of Economics?"
"The last class Come on, it’ll be gone after serving it,” Kong Xianbo said beside him while eating.
As soon as he finished speaking, everyone looked away.
Xu Qingzhou squinted his eyes. The last time he had dinner, this guy and Teng Xiaojuan talked so passionately: "Old Kong, how come you know so much about economics?"
"Lao Xu, you don't know that Lao Kong and Teng Xiaojuan chat so diligently."
"She just asked me a few math questions."
Kong Xianbo helped me Adjusting his glasses and defending, he still had something to say: "This girl is really rubbish in mathematics. Certain questions can be solved by just using your brain a little."
I feel tired.
“You don’t need to explain to us, we all believe it.” Although Xu Zhengyang said this, the expression on his face made people think that Kong Xianbo and Teng Xiaojuan had already ××00 .
"Teng Xiaojuan is actually a nice person." Xu Qingzhou said seriously.
“Yes, I also think Lao Kong is a good match for me.”
Kong Xianbo shook his head: “Teng Xiaojuan and I just exchanged mathematical questions.”
As he said it, Kong Xianbo's heart really fluctuated a little bit, as if it wasn't impossible?
Many romances seem to originate from hesitation between friends.
After teasing Kong Xianbo, everyone talked about the recent review.
For example, the questions are difficult, how many people failed in the last session, etc.
After talking about the review, Xu Zhengyang began to imagine the beauty after the exam, "When I get through this exam safely, I have to relax and go out for a trip."
Xu Qingzhou has already eaten It was almost done, so he asked: "Where are you going?"
"We are going to the northwest, Duku Highway. I watch the videos there every day. I have long wanted to see it." Xu Zhengyang said, paused After a pause, he said: "Lao Xu, don't you go out to play?"
"I can't go, I don't have time." Xu Qingzhou looked helpless.
“The summer vacation lasts forty or fifty days.”
“I have to go to Switzerland in August to participate in an experiment. I don’t know how long I will be busy. Alas, sometimes I think about it, It's better for you."
Xu Qingzhou was really emotional. After speaking, he saw Xu Zhengyang and the others' expressions of disgust and added: "I definitely showed my true feelings this time."
" .”
Haha, obviously just showing off.
Fortunately, people like them are used to it.
"."
Xu Qingzhou coughed lightly, stood up, and prepared to go back to the library, "You guys eat, I'm leaving."
Could it be that he was showing off too much before? Do these guys have psychological shadow?
Xu Qingzhou came out of the cafeteria and went directly back to the library. He continued the analysis in the morning until 4 o'clock in the afternoon. After completing the analysis, he finished everything and packaged it and sent it to Professor Zhao.
Then I took out my phone, checked Weibo and relaxed for two minutes.
Oh, someone else announced that he had proved the Polignac conjecture.
The private messages were all in Ai Te Qingzhou, asking him to take a look and give his opinion.
It’s still domestic.
Zhou Lei, a mathematics enthusiast, seems to be a civilian.
Xu Qingzhou suddenly lost interest. In civil science forums, it often happens that the building of physics collapses today and the building of mathematics collapses tomorrow.
However, Xu Qingzhou found that there was relatively little about chemistry.
Maybe it’s because the chemistry is not done well, will the building really collapse?
Weibo is too boring, why not look at the school beauty Song opposite. School belle Song was doing a calculation with her head lowered. While she was thinking, her long eyelashes trembled a few times, her expression was cold, and a few strands of hair were floating in her ears. She quickly reached out and hooked them behind her ears.
As if aware that Xu Qingzhou was looking at her again, Song Yao raised her head and made a warning gesture of gouging her eyes at him.
Xu Qingzhou curled his lips, sighed, and took out the information on Polignac's guess.
You have to accept the girlfriend you find.
The rainy Monday passed and the rain stopped on Tuesday.
In the morning, Xu Qingzhou received a call from Director Ji, asking him to report to the Institute of High Energy Physics at Peking University.
Here, he met the leader of the Xia Guo experimental group in August, Yang Bing, an old academician with gray hair on his temples.
"Academician Yang."
"Xiao Xu." Academician Yang was very kind and waved his hand, gesturing for Xu Qingzhou to sit down.
In addition to Academician Yang, there is also a doctoral student named Zhang Changqing.
Zhang Changqing looked at this talented junior brother curiously. He looked so-so, he could be considered handsome. He was indeed handsome. The most important thing was that he was a genius in mathematics and physics.
The back waves of the Yangtze River push the front waves, and the front waves die on the beach.
Academician Yang asked: "You are very accomplished in quantum mechanics. You should also be involved in particle physics, right?"
Quantum mechanics is the basic theory that describes the behavior of microscopic particles, and Particle physics is the branch of physics that studies these microscopic particles and their interactions. Studies include electrons, protons, neutrons, etc.
Quantum mechanics provides the theoretical basis and framework for particle physics, allowing particle physicists to understand and explain various phenomena in the microscopic world.
Therefore, as long as you study quantum mechanics, you cannot escape contact with particle physics.
"I have studied it before."
Xu Qingzhou nodded and said that he was indeed interested in particle physics, but he was not involved in it deeply and was not as good as the top experts, but he still had some basics. After all, he had done it before I have communicated with many particle physicists.
Dean Feng nodded, handed the thing on the corner of the table to Xu Qingzhou, and said, "There are three questions here. You can try them."
What he wanted to do was to try Xu Qingzhou first. level, and then see how to arrange the information he needs to read during this period.
"I'll try my best." Xu Qingzhou knew that Academician Yang wanted to test him, and it was an old stage again. In fact, he really didn't want to show off, but...
Zhang Changqing thought to himself that the teacher was a little embarrassed. This question is the teacher's It was prepared for the new juniors. Although Xu Qingzhou was very good, it was about mathematics and quantum mechanics.
Quantum physics and particle physics seem to be inextricably linked, but in fact the actual research is very different.
My junior brother hasn’t used it yet, but Xu Qingzhou bumped into him.
I feel a little sorry for this junior brother.
Zhang Changqing said with a smile: "Junior brother, don't be restrained. If you want to drink water, you can pour it yourself."
"Okay, thank you, Senior Brother Zhang." Xu Qingzhou nodded and started to read the questions.
Track 1: Judging from the valence quark structure of the meson, K*° is the (sd) complex state of J=1, and D* is the (sd) complex state of J^P=1
Meet Xu Qingzhou When he started to solve the problem, Academician Yang did not wait, and he and Zhang Changqing continued to calculate the data.
This question is simple and can be solved in a few minutes.
Xu Qingzhou directly skipped question 1 and looked at the next question, thinking about the solution in his mind.
The second question is related to the standard model particles, and asks you to construct a model coupling supersymmetry breaking and inflation.
The third question is about superstring theory.
Let within the framework of superstring theory, consider a space-time structure with an extra compact dimension, in which there is a symmetry-breaking mode of a specific gauge group (such as E8 or F4), which is in the four-dimensional space-time The low-energy limit does not directly correspond to the gauge group SU(3)×SU(2)×U(1) of the Standard Model.
This question is very basic and requires solid knowledge about superstring theory, supergravity theory and the structure of higher-dimensional space-time.
First construct the symmetry breaking path, and then add additional dimensional geometry and modulus space.
Xu Qingzhou thought clearly, picked up his pen, and quickly fell into calculations.
20 minutes passed.
"Yes, here, based on your model predictions, several possible experimental observation signals are proposed. For example."
Academician Yang noticed that the calculations he had made while lying on the table before Xu Qingzhou had stopped and seemed to be waiting for him.
"Xiao Xu, it's a bit difficult. Don't be upset. These three questions were originally assigned to a new doctoral student I brought under my leadership."
"It's done."
"Huh? ”
(End of this chapter)