Chapter 231: Why aren't you wearing clothes?!

The meal was very lively, and they finished both cases of beer.

At 9:30 PM, night had long since fallen, the Changchunyuan block was brightly lit, and Xu Qingzhou and the others also came out of the restaurant, preparing to return to school.

Everyone was in good condition; Xu Zhengyang and the others' drinking capacity had risen in a straight line, and they were all very sober.

A group of people chatted and laughed as they walked towards the school, then returned to their dormitories. Until the end, Zhang Qiong and the others turned left at the intersection, and the small team was left with only Xu Qingzhou and Song Yao.

Saturday, the Jingda campus was much quieter than usual, occasionally meeting two people on the road who had just returned from the gathering like them.

Xu Qingzhou had six or seven bottles of beer in his stomach, not drunk, just slightly tipsy. Song Yao drank more than half a bottle, and Xu Qingzhou drank the rest, but her fair little face showed a rosy glow.

"How come I feel like Old Kong was directly fooled by Teng Xiaojuan?" Xu Qingzhou's expression was strange.

Song Yao knew Teng Xiaojuan better than Xu Qingzhou, and her tone was certain: "She was fooled."

"Xu Qingzhou said he had an idea on his side?" Wan Hao expressed it was a bit hard to accept. They had studied for 1 day and had no clue, and until now they had no way to start.

Read! {

Professor Zhong smiled and looked at the blackboard next to him: "Now there are two big problems in front of us, one is the problem of quantum decoherence, and the second is the problem of the accuracy of density matrix calculation." "Everyone doesn't need to come to the laboratory tomorrow, rest well. Next week, we must gnaw down these two hard bones!"

This also means that the other group responsible for the density matrix also encountered problems.

Professor Zhong nodded slightly.

Wang Yigui sighed: "This student Xu Qingzhou is very powerful. I looked at the equations he set up to solve the Schrödinger equation; they are concise and clear at a glance."

"The words 'forgot to bring pajamas' are wrong; underwear also counts as clothes. Besides, we are already an old married couple; it's not a big deal to be naked."

It's normal not to be able to solve it.

"Hope Old Kong can hold on."

"Phew~"

"Xu Qingzhou, can't you be more humble?"

"Take a look if you have time."

Comparing this, Song Yao's body was milky and milky, and his side was the smell of alcohol and hot pot, so he simply went to take a shower.

Here, in the long-term evolution process, due to the cumulative error and rounding error of numerical calculation, the density matrix may lose its due physical properties, such as Hermiticity, semi-definiteness, etc.

However, perhaps seeing Xu Zhengyang and Chen Shiqi being like glue, she inexplicably wanted to stick with Xu Qingzhou tonight.

Before leaving the school gate, Xu Qingzhou received a call from Professor Zhong.

"You, why aren't you wearing clothes!"

The sound of flowing water rang out in the bathroom again.

Which freshman is so powerful?

Deng Ziyi had nothing to say; she was already numb. For Xu Qingzhou, besides the four words "Big Shot is awesome," she couldn't seem to find other descriptions.

Xu Qingzhou smiled lightly. From the current contact, Teng Xiaojuan had no problems; she felt like a social butterfly girl, a funny girl.

Moreover, he had also been in contact with Xu Qingzhou and knew that this young man's math was very strong, but the problem in front of him was too big and too complex. It wasn't just a pure theoretical math problem; it also had to combine various test data of the simulated satellite to establish a mathematical model that conforms to the satellite's operation.

Xu Qingzhou stretched, thinking that if there was time tomorrow, he would finish it all at once, so as not to cause trouble later.

Song Yao's next words were stuck in her throat because at this moment Xu Qingzhou had already come out, wearing only underwear.

Then there is measurement, measuring the quantum system under a specific measurement basis, and calculating the probability distribution of the measurement results according to the density matrix. "We'll know by Monday."

First is initialization, determining the initial state of the quantum system and representing it with a density matrix. Second is evolution, calculating the evolution of the density matrix over time according to quantum mechanics principles and the system's Hamiltonian.

Song Yao was sitting on the sofa reading, her two little feet swinging. Obviously, it was more comfortable to read at the desk next to her, but... maybe it was similar to a tacit understanding, Xu Qingzhou had to pull her feet every night.

Xu Qingzhou said with a smile: "Thank you, Professor. In addition, I already have some ideas and plan to try them first. Specifically, we'll talk on Monday."

Xu Qingzhou said indifferently, squeezed some toothpaste, brushed his teeth slowly, and even took the opportunity to show off his bird in front of School Beauty Song while taking his phone.

Xu Qingzhou leaned on the chair, his fingertips tapping the table lightly, recalling relevant knowledge. Usually, the algorithm steps of the density matrix in dealing with quantum states and entangled states don't change much.

"For me, it's a small problem."

Yes, Xu Qingzhou said he had ideas on his side, but Professor Zhong didn't think Xu Qingzhou could really handle it. He wasn't doubting Xu Qingzhou's ability; someone who could handle two world-class problems definitely counted as an expert.

Xu Qingzhou occasionally still liked to tell Song Yao about things at the research institute, talking about the people he met, Professor Zhong, Deng Ziyi, Professor Chang, and how the food was.

Xu Qingzhou took out his computer to check the materials sent by Professor Zhong. Besides the content related to quantum decoherence, there were also a few about density matrix description.

Xu Qingzhou nodded and said: "Need to sort it out first, haven't started writing yet."

Song Yao squeezed Xu Qingzhou's hand. Although she was quite proud, having an excellent boyfriend was also a lot of pressure, and she had to find a way to catch up with Xu Qingzhou's pace.

Browsing the materials roughly, when Song Yao finished showering and washed up simply, he got up again and took the hair dryer to help her dry her hair.

In the classroom, besides Professor Zhong, there were Deng Ziyi and two doctoral team members, Wan Hao and Wang Yigui.

"You can't solve it either?"

10 minutes passed, hearing the sound of the bathroom door opening, Song Yao said: "Xu Qingzhou, let's find a movie later..."

"You have an idea?" Professor Zhong was slightly surprised.

!.

Professor Zhong was a straightforward person, without too much pleasantry, saying: "Little Xu, regarding the problem of quantum decoherence, I sent you a few materials; these are methods from foreign laboratories on how to deal with quantum decoherence."

Once home, Song Yao dived into the bathroom to shower; hot pot plus alcohol, the smell was too heavy.

Research Institute.

Finally, the entanglement analysis is now in the stage of problems; it should be the evolution part.

Seeing Xu Qingzhou hang up the phone, Song Yao asked: "Research Institute?"

Yandongyuan.

"It's that Professor Zhong I told you about. They encountered a big problem over there and haven't figured out how to solve it until now."

Song Yao's fair cheeks showed a rosy glow; she liked the words "old married couple" very much, but on the surface, she spat, glared at him, and urged: "Put your clothes on!"

"Go after brushing your teeth *gulu gulu*..."

Forget? Of course not. It was just that he had played a little trick before entering the bathroom, intentionally leaving it behind. It was like boiling a frog in warm water—a gradual process—letting the school beauty Song adapt bit by bit.

(The next chapter was dragged into the small black room)

(End of chapter) ===== CHAPTER 232 =====