Chapter 235: The young people today are really fierce

To be more specific, it is a kind of calm and composed big-shot temperament, natural speech, clear logic, which makes people feel a kind of enjoyment.

Professor Zhong felt strange again.

The teacher is already a retired old academician, Xu Qingzhou is just a young man under 20... At this time, Academician Ma Liangzai walked in.

The new week project meeting officially began.

There is no empty content, everyone reports their progress in turn and expounds on the problems encountered.

Professor Zhong is the last one.

"Currently, we have encountered two stumbling blocks here, one is how to deal with the problem of quantum decoherence, and the second is how to ensure the accuracy of density matrix calculation."

"First, let's talk about the first one. In the practical application of quantum satellites, the transmission and measurement of quantum states will inevitably be affected by external factors such as environmental noise and atmospheric interference. These factors will trigger the phenomenon of quantum decoherence."

Wan Hao and Wang Yigui's expressions were also very wonderful, especially Wan Hao, who looked like he had seen a ghost, his mouth twitching.

Read! {

Professor Zhong was the first to recover, waving his hands repeatedly, looking at the content on the first blackboard, vaguely thinking of something, his eyes full of excitement. 【\hbar\frac{\partial}{\partialt}\rho(t)=h\rho(t)】

He also considered adding the last line of defense when solving the problem.

The three were suddenly frozen, standing still, and a look of disbelief gradually emerged in their eyes.

What's the situation?????? In front, two blackboards were full of formulas, Xu Qingzhou was standing in front of the second blackboard, still writing *shua shua*.

"Luck is also part of strength."

Help, what should I do if there is a super perverted Xu Xu Shidi, the pressure is huge!

"."

2 days! This ability is so terrible! Xu Qingzhou looked at Wan Hao and Wang Yigui again, they also shook their heads, Xu Qingzhou's strategy is perfect, even thinking of using quantum error correction coding and other physical means.

Their current appearance, wearing two big dark circles, this appearance is much more tired than when they usually come to the research institute.

Academician Ma nodded, "Good, if it cannot be solved within two weeks, I will apply to the institute for assistance and establish a research group."

Deng Ziyi was stunned, very moved that the big shot would ask if she had any opinions, and then felt flattered, very much wanting to say: "Do you want to see what you are asking?"

The quantum decoherence problem was encountered on Friday! That is to say, Xu Qingzhou solved the thorny problem that even the teacher was helpless about in 2 days!

"Little Xu, your method is perfect."

"Su Lao is an expert in the quantum field and linear algebra field. With Su Lao sitting in town, it should be solved in a short time, right?" Someone said.

Xu Qingzhou smiled modestly, "I was also lucky, found a suitable path, and studied along this path, didn't expect it to really be solved."

Of course, while complaining in his heart, she took a deep breath, her face calm, and said solemnly and ceremoniously: "I have nothing to add."

"Professor Zhong." Xu Qingzhou noticed Professor Zhong and the others coming, turned his head, smiled lightly, and said: "Wait a moment, it will be done soon."

Deng Ziyi stood by like a little follower.

After stating the two problems, Professor Zhong's expression was helpless: "We expected to solve these two problems in a week. Yesterday I also went to ask my teacher, Academician Su Yicheng."

On the side, looking at Professor Zhong and the others' expressions, Deng Ziyi inexplicably felt comforted. Look, even Professor Zhong and the others were frightened, let alone her.

Everything is detailed, the young people today are really *tm* fierce! Xu Qingzhou nodded slightly, his eyes looking at Deng Ziyi on the side.

"Xu Xu Shidi, awesome," Wan Hao said admiringly.

Half an hour later, Xu Qingzhou stopped and said: "Regarding the idea of quantum decoherence, that's all. Professor Zhong, do you have anything to add?" "No rush, no rush."

"."

Mom, I've made it, *woo woo*.

"We are building the world's first quantum satellite, there must be difficulties. Crossing the river by feeling the stones is not easy. However, things are always developing in twists and turns, and problems will always be solved."

Professor Zhong shook his head and said, paused, with a smile on his face: "Thanks to Little Xu, gnawing down a hard bone, next, we can make a one-time effort to gnaw down the density matrix bone too!"

"The above methods can already allow us to avoid the impact of quantum decoherence on quantum distribution entanglement. However, I still added an insurance, for example, using quantum error correction coding to detect and correct errors in qubits, and then using dynamic decoupling technology to reduce the interaction between the system and the environment."

Quantum decoherence interference is too strong, simulated data fails.

Not bad, not bad, this step is too wonderful!

Walking towards the 4201 classroom, Professor Zhong asked: "Regarding those two problems, do you two have any new clues?"

The strategy is very simple: first confirm the quantum decoherence situation, find the problem, and then use mathematical tools to solve the problem.

The meeting dispersed.

Wan Hao pinned his hopes on Professor Zhong's teacher, asking: "Professor Zhong, what did Academician Su say?"

"Ah?"

Professor Zhong led two doctoral students into the 4201 classroom. When he saw the situation in the classroom, his words suddenly got stuck.

Wan Hao and Wang Yigui both shook their heads. They didn't rest much when they went back yesterday, they were all looking at papers and checking materials, using more than a dozen methods, but none of them worked.

Professor Zhong's eyes were appreciative. Being able to find a solution to quantum decoherence within 2 days, such a person will definitely have a place in the Xia Nation physics community in the future.

"Alright, meeting adjourned, everyone hurry up."

!.

Professor Zhong shook his head: "The situation is not optimistic. The teacher said it is very difficult to avoid quantum decoherence, and he needs some time there. Now it seems that the time we need to completely handle these two problems is estimated to double, about two weeks."

"I used the Lindblad equation, which can contain the system Hamiltonian and the Lindblad operator describing the interaction between the system and the environment, first using this equation to determine the situation of quantum decoherence..."

"No good news, Little Xu should be here, he said on Saturday he had some ideas, just in time to listen to him... hmm?"

Professor Zhong shook his head, his expression complex.

Professor Zhong carried the documents to the classroom, passed by one of the classrooms, and shouted to the people inside: "Little Wan and Little Wang, you two put down the things in your hands first, come to my place."

On this side, Xu Qingzhou had already written the last two formulas, clapped his hands, and said to Professor Zhong and the others: "In these two days, I found a relatively suitable and efficient method to suppress quantum decoherence."

The teacher is already 84 years old and doesn't have so much energy, so he can only give some suggestions, and the work still has to be completed by them, so they must concentrate their strength to do big things, and brainstorm first.

"Correct, if it's just a density matrix, I believe we can finish it in a week!"

Wan Hao was full of energy.

Wang Yigui also smiled, the worry on his face had long since disappeared. Quantum decoherence had been solved, and getting the density matrix was just a matter of time.

Professor Zhong and the three were very excited, only Deng Ziyi on the side had a strange expression, looking like she wanted to say something but stopped.

(End of chapter) ===== CHAPTER 236 =====