Chapter 235 Today’s young people are so fierce
To be more specific, he has a calm and cool boss temperament, natural conversation, and clear logic, which will give people a feeling of enjoyment.
Professor Zhong felt strange again.
The teachers are all retired academicians, and Xu Qingzhou is a young man under 20
At this moment, Academician Ma Liangzai walked in.
The new week's project meeting officially begins.
There is no fake and empty content. Everyone takes turns reporting their own progress and explaining the problems currently encountered.
Professor Zhong is the last one.
“Currently, we encounter two obstacles 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.”
“ Let’s talk about the first one first. 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 cause quantum decoherence. "
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After finishing the two questions, Professor Zhong looked helpless: "We expect to solve these two problems within a week. Yesterday, I also went to ask my teacher, Academician Su Yicheng, for advice."
< br>" Mr. Su is an expert in the quantum field and the field of line generation. With Mr. Su in charge, we should be able to solve the problem in a short time, right?" someone said.
Professor Zhong shook his head: "The situation is not optimistic. The teacher said that it is difficult to avoid quantum decoherence and that he will need some time. Now it seems that we want to completely deal with these two problems. The time required It is estimated that it will be doubled in about two weeks."
Academician Ma nodded, "Okay, if it cannot be solved within two weeks, I will apply for assistance from the hospital and set up a research team."< br>
“We are building the world’s first quantum satellite. There are definitely difficulties. Crossing the river by feeling the stones is not easy. However, things always develop in twists and turns, and problems will always be solved. Solve it.”
“Okay, let’s break up the meeting. Everyone, hurry up.”
The meeting is dismissed.
Professor Zhong carried the documents to the classroom. He passed by one of the classrooms and shouted to the people inside: "Xiao Wan and Xiao Wang, you two put aside what you are doing and come to my side." . ”
The teacher is 84 years old and does not have that much energy. He can only give some suggestions. The work still has to be completed by them. Therefore, we must concentrate on doing big things and brainstorm with a few people first.
While walking towards classroom 4201, Professor Zhong asked: "Regarding those two questions, do you two have any new clues?"
Wan Hao and Wang Yigui both shook their heads. They didn't get much rest when they went back yesterday. I tried more than a dozen methods while reading papers and searching for information, but none of them worked.
The quantum decoherence interference is too strong and the simulated data is invalid.
The way they look now, with two big dark circles under their eyes, they look even more tired than when they usually come to the institute.
Wan Hao placed his hope on Professor Zhong’s teacher and asked, “Professor Zhong, what did Academician Su say?”
“There is no good news. Xiao Xu should be here, he Zhou Zhou Liu said that he had some ideas, just listened to him, eh?"
Professor Zhong led the two doctors into classroom 4201. When he saw the situation in the classroom clearly, his words suddenly stopped.
The expressions of Wan Hao and Wang Yigui are also very exciting, especially Wan Hao, as if he has seen a ghost, the corners of his mouth are twitching.
The three people seemed to be suddenly frozen, stunned in place, with a hint of disbelief gradually emerging in their eyes.
What's going on? ? ? ? ?
In front, two blackboards were filled with formulas. Xu Qingzhou stood in front of the second blackboard and was still writing.
Deng Ziyi stood beside him like a little follower.
"Professor Zhong." Xu Qingzhou noticed Professor Zhong and the others were coming, turned his head, smiled softly, and said, "Wait a moment, it will be fine soon."
"Don't be in a hurry. Don't be in a hurry."
Professor Zhong was the first to come to his senses. He waved his hands quickly and looked 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)]
Yes, yes, this step is great!
Looking at the expressions of Professor Zhong and others, Deng Ziyi felt inexplicably comforted. Look, even Professor Zhong and the others were frightened, let alone her.
Help, what should I do if I have a super perverted junior brother? It’s so stressful!
At this end, Xu Qingzhou had finished writing the last two formulas, clapped his hands, and said to Professor Zhong and others: "In the past two days, I have found a more suitable and efficient method to suppress quantum decoherence. ”
"I used the Lindblad equation, which can include the system Hamiltonian and the Lindblad operator that describes the interaction between the system and the environment. I first used this equation to determine the situation of quantum decoherence."
The strategy is simple. , first confirm the quantum decoherence situation, find the problem, and then use mathematical tools to solve the problem.
When solving the problem, he also considered the need to add a final layer of defense.
“The above method has allowed us to avoid the impact of quantum decoherence on quantum distributed entanglement. However, I still took an insurance, for example, using quantum error correction coding to detect and correct errors in qubits, Then use dynamic decoupling technology to reduce the interaction between the system and the environment."
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After half an hour, Xu Qingzhou stopped and said: "About the idea of quantum decoherence. That’s it. Professor Zhong, what do you have to add?”
Professor Zhong shook his head with a complicated expression.
The quantum decoherence problem was only encountered on Friday. In other words, Xu Qingzhou solved the difficult problem that even the teacher was unable to solve in 2 days!
2 Oh my god! How terrifying this ability is!
Xu Qingzhou looked at Wan Hao and Wang Yigui again, and they both shook their heads. Xu Qingzhou's strategy was perfect, and he even thought of using physical means such as quantum error correction coding.
No matter how small it is, young people today are so fierce!
Xu Qingzhou nodded slightly and looked at Deng Ziyi beside him.
“Huh?”
Deng Ziyi was stunned for a moment. She was very touched that the boss asked her if she had any opinions. Then she felt flattered and wanted to say in her heart: “Do you want to see what you are doing? What are you asking?"
Of course, the complaints in her heart were all in her heart. She took a deep breath, looked calm, and said solemnly: "I have nothing to add."
Mom, I'm out of luck, woo woo.
“Xiao Xu, your method is perfect.”
Professor Zhong admired him for being able to find a solution to quantum decorrelation within 2 days. Such a person will be a great success in Xia Guo Physics in the future. There will definitely be a place in academia.
“Junior brother, you are awesome.” Wan Hao said with admiration.
Xu Qingzhou smiled modestly, "I was also lucky. I found a suitable path, so I followed this path to study. Unexpectedly, I actually solved it."
"Luck is also a part of strength."
Professor Zhong shook his head and said, paused, with a smile on his face: "Thanks to Xiao Xu, I have gnawed off a piece of the hard bone. Next, we will We can gnaw off the density matrix in one go!”
“That’s right, I believe we can get it done in just a week”
Wan Hao is very motivated! .
Wang Yigui also smiled. The previous sadness on his face had long since disappeared. Quantum decoherence has been solved. It is only a matter of time to get the density matrix.
Professor Zhong and the three of them were very excited, but Deng Ziyi next to them had a strange expression and seemed hesitant to speak.
(End of this chapter)