The notice finally came out. Xu Mang was in charge of the basic theory part of the theoretical physics major exam. He was satisfied with the reply. Moreover, according to his plan, there was no need to write any papers and he could just give two propositions directly.

"well?"

"How is the high-mathematics paper coming out?" Yang Xiaoman just got three MVPs. He glanced at Xu Mang who was in a daze and asked curiously: "I see you are happily typing on the keyboard, there should be no problem, right?"

?”

"It's okay."

"The questions are quite strange." Xu Mang stretched out and said with a smile, "I just received a notice that I am also responsible for the basic theory examination papers."

this

What is this going to do?

Crazy?

Yang Xiaoman didn't know what to say for a while. She had no other thoughts except praying in her heart that the candidates were safe.

"Can you let me see your high-level mathematics papers?" Yang Xiaoman asked: "I will serve as your adviser."

"no!"

"What if it's leaked?" Xu Mang still has principles in his life and said with a righteous face: "This is stipulated by law. I can't do it randomly. If others find out, I will not be able to live with it."

."

Although Yang Xiaoman was a little angry, Xu Mang couldn't find any fault in doing this. After all, he was the one who made the question.

Naturally, dinner is takeout,

But there was a big dispute between the two about who would get the takeout.

at last,

Yang Xiaoman walked out of the dormitory with an unhappy look on his face, and then returned to Xu Mang carrying two big bags.

"Bad guy!"

"You know how to use your identity to suppress me." Yang Xiaoman said angrily.

"how?"

"Do you still have any objections?" Xu Mang said with disdain: "Even if you have any objections, you can't do anything to me. Who asked me to give out the test paper?"

Yang Xiaoman wanted to beat him to death, but finally held back.

The rice tasted delicious, which was how it seemed to Xu Mang, but Xiaoman felt very frustrated. He took a mouthful of white rice and glared at Xu Mang.

soon,

Dinner is over,

It’s time for the happy post-dinner walk.

Yang Xiaoman had always regarded this moment as the best opportunity to fall in love. At this time, she was holding Xu Mang's arm and walking on campus against the cold wind.

"Xiaoman?"

"Um?"

"What unique understanding do you have about history?" Xu Mang asked curiously: "I want to take the final exam of the history department."

"What?"

"You didn't even miss the history department exam?" Yang Xiaoman asked confusedly.

Xu Mang sighed and said helplessly: "Don't mention it. I have to get good scores in the final exam of the History Department. Otherwise, I can only be rated as an associate professor next year. I will work as an associate professor for a year and a half before being rated as a professor."

"Why?"

"I think Director Fang was trying to kill the water chestnut in me." Xu Mang said, "I originally went to the History Department to take classes today, but it turned out that there were no classes in the History Department, so I went in vain."

"oh."

"It makes sense for the director of your department to do this. History is relatively boring. If you can calm down, it means you have grown up." Yang Xiaoman said seriously: "But do you know what history is?"

Xu Mang:@#￥%amp;

Damn it!

What does it mean to understand history?

joke

"well!"

"Do you know my nickname?" Xu Mang said with a smile: "The moving "Historical Records" living body, just kidding."

"Pooh!"

"How many nicknames do you have, you bastard?" Yang Xiaoman said angrily: "You come up with a nickname for yourself every now and then. I think you were born just to mess with me. You want whatever I say.

If you use force, will you die?"

Xu Mang: Embarrassed

This is crazy

Obviously you are two years younger than me.

The two of them may have been a little tired from the fight, so they came to a pavilion and sat for a while.

At this time,

Yang Xiaoman recalled that when she was in No. 1 Middle School, she saw many girls with adoring looks on their faces, their handsome faces gradually distorted, and silently said to Xu Mang: "I found that you are very popular recently, dear Professor Xu, and many girls are like this."

You are a fan."

not good!

Something might be going on.

Xu Mang was keenly aware of the danger, glanced at Xiaoman, and said cautiously: "Isn't this just a reflection of your excellence from the side? None of them can have me, but I am yours alone."

well?

This seems to be the case.

hey-hey,

It's useless no matter how much you like him, because he belongs to me alone.

Suddenly,

Yang Xiaoman threw herself into Xu Mang's arms with a smile on her face and said in a grumpy voice, "Well, you'll pass."

but

The tenderness between the two only lasted for an hour. When Xu Mang was tutoring Xiaoman on quantum mechanics, he was back to blushing.

"The essence of quantum mechanics lies in superposition and collapse." Xu Mang said: "In the microscopic world, a quantum state can be in a superposition. This concept was proposed by Bohr, and it almost made Einstein angry.

A great scientist who died, many people opposed him at that time, including Schrödinger, one of the founders of quantum mechanics."

"etc!"

"Are you deceiving me?" Yang Xiaoman rolled his eyes: "Shouldn't it be proposed by Schrödinger? Isn't that Schrödinger's cat the explanation of quantum superposition?"

"No no no!"

"Schrödinger's cat is just a thought experiment. It is used to refute Bohr's point of view." Xu Mang said: "Do you want to learn from it or not? If you don't want to learn from me, you won't be able to play games!"

Yang Xiaoman pouted and nodded helplessly.

"Do you know about atomic decay?" Xu Mang asked: "I'll take uranium atom as an example. Uranium atom is an unstable atom. It may turn into lead atom without warning. The change of atom can only change from heavy to light.

, meaning that the weight will decay every time, and we call this process decay.”

"Atomic decay is a phenomenon that occurs randomly. For a single atom, it is impossible to predict when it will decay. That is to say, there is uncertainty about whether an atom will decay." Xu Mang continued: "So Bohr proposed that

Before observing the decay of an atom, the atom is in a superposition of decaying and non-decaying states."

"Schrödinger was very unhappy after hearing this. Bohr told Schrödinger to hit me if you can. Then Schrödinger proposed a half-dead cat to refute the concept of quantum superposition." Xu Mang said.

Yang Xiaoman's face was covered with black lines. Why does Bohr look so similar to Xu Mang?

"Then can you explain Schrödinger's cat, the core of this idea?" Yang Xiaoman asked.

"Yes!"

"First of all, I admitted Bohr's quantum superposition state, but then deduced an absurd conclusion, which shows that Bohr's conclusion is absurd." After a pause, Xu Mang said: "It's similar to what you are doing now, please do your best.

It sounds like that’s it, why are there so many questions?”

Yang Xiaoman was so angry that he gritted his teeth. Things were really changing. He had said the same about him in the past.

In the subsequent discussion about collapse,

Yang Xiaoman quarreled with Xu Mang again, and they quarreled until they got into the bed.

this day,

Xu Mang took the data disk and found Director Fang.
To be continued...