Chapter 292 High Temperature Superconductivity

"Although we experimented many times and got the same results many times, we were relieved when the research team at Columbia University received the news that the experiment was repeated successfully."

Recalling what happened after the experiment was successful, Cao Yuan couldn't help but smile.

Wu Bin nodded: "It's natural to be nervous. After all, since graphene was discovered, this field has never been so exciting."

Cao Yuan: "Actually, it is because the repeated process is more difficult than expected, and the time for other experimental teams to receive news is slower than we imagined. However, after Professor Kerui's team successfully copied this success, there were three other teams immediately. Its reproducibility was also confirmed.”

After listening to Cao Yuan's words, Wu Bin suddenly remembered something and said: "In addition to verifying the results, there are also many people who directly started to study your experimental results, right? I remember seeing quite a few attempts to explain this on arXiv at that time. Phenomenal article.”

"That's right." Cao Yuan nodded, "Many teams are using their methods to adjust the interlayer structure of other two-dimensional materials and look for other forms of electron interaction."

Wu Bin: "To put it simply, everyone is trying to stack their favorite materials and rotate them, right?"

Cao Yuan raised his glasses after hearing this: "Yes, but now more information is needed to determine whether the mechanism that induces double-layer graphene to achieve superconductivity is the same mechanism behind high-temperature superconductors. Unfortunately, so far, apart from the recognized There is absolutely no consensus among theoretical physicists that the system is worth studying."

After speaking, Cao Yuan glanced at Wu Bin and asked, "Have you discovered anything?"

"Me?" Wu Bin thought for a while and said, "How should I put it? I think the principle of superconductivity in rotating double-layer graphene is similar to traditional iron-based superconductivity. I have read information on this recently. But there hasn’t been much progress yet.”

Cao Yuan glanced at Wu Bin in surprise at first, then smiled and said: "Hahaha, I still have a good sense as a junior. In fact, we have never emphasized that we have made the so-called 'high-temperature superconductor'. It's just that the media likes to brag about it. After all, 1K The transformation cannot be said to be high. The similarity you mentioned is the shining point in this experiment."

After speaking, Cao Yuan suddenly stood up and walked to the blackboard in the conference room. He picked up a piece of chalk and started writing while saying: "In fact, when we were studying high-temperature superconductivity in copper oxide, we found that by improving the experimental conditions and A small amount of doped Mott insulator phase will undergo a superconducting phase transition in the presence of a device, and similar phenomena have been observed in several samples."

Looking at the values ​​​​written by Cao Yuan on the blackboard, Wu Bin couldn't help but fall into thinking, and kept tapping the rhythm with his five fingers on the table.

When Cao Yuan finally put down the chalk, Wu Bin also walked up to the blackboard, picked up a piece of chalk and said: "Although the superconducting transition temperature is about 1K, which is not high, it is because of the extremely low flow concentration of graphene under the aforementioned conditions. , so actually this transition temperature is very high..."

At this time, at the door of the conference room, Qin Simeng, who secretly listened to the two people talking through a crack in the door, closed the door silently.

"What are they talking about?" Li Yan, who was playing with his mobile phone in the back, raised his head and asked.

"I don't understand..." Qin Simeng had an expression on his face that said who am I and where am I.

"Hahaha." Li Yan snickered twice: "I won't listen anyway. It's not worth being hit by two monsters."

Qin Simeng let out a long breath: "I was thinking whether these two people would solve some world problem while chatting. I can also be considered a witness."

"Forget it~" Li Yan stuffed his phone back into his pants pocket: "It's the right way for mortals like us to go to class."

"That's right." Qin Simeng sighed and walked out with Li Yan.

When they came to the hall, a member of the student union saw Qin Simeng walking towards him and immediately came over to greet him: "Hey, what a coincidence, what's wrong with you coming to the student union?"

"Well, look at it." Qin Simeng smiled and nodded.

"Oh, I just heard that, it's Senior Cao Yuan who's back, right? I'm going to get a mask later." After saying that, the boy suddenly shouted: "By the way, I went to watch your debate two days ago. After the game, I performed very well.”

"Thank you." Qin Simeng nodded politely.

"One more thing." The boy said and took out two tickets: "I bought two tickets for Turandot the day before yesterday, but the friend who originally agreed to go with me gave up. I know you are also very interested in opera. Yes, how about together? This ticket is very difficult to buy, it would be a pity to waste it."

Although the boy tried to sound as casual as possible when he spoke, his voice was still mixed with some nervousness.

After hearing this, Qin Simeng smiled and replied: "Sorry, I have a lot of homework to make up for in the past two weeks, and I'm afraid I can't spare this time."

"That's it..." The boy's expression was a little disappointed, but he immediately adjusted and said, "Okay, I'll ask others."

"Okay, thank you for the invitation." After Qin Simeng said that, he turned and walked towards the door.

Looking at Qin Simeng's leaving figure, the boy sighed, stuffed the two tickets back into his pocket and left.

‘Tsk… it’s tragic. ’ Li Yan, who was standing at the door, couldn’t help but shake his head and watched the warrior who dared to take action leave.

After all, there have been too many seniors who were declined by Senior Sister Qin before, but those who dare to take action now are all considered "warriors".

"Do you have any other plans for Senior Cao Yuan tonight?" Qin Simeng walked up to Li Yan and asked.

Li Yan shook his head: "There shouldn't be any today. I guess the school can imagine that these two people will have a lot to talk about when they meet. There will be a dinner party tomorrow, but it will be for Senior Cao Yuan and several of his former teachers."

"Oh." Qin Simeng nodded, "Then I'll go to class first."

"Okay, goodbye, senior sister." Li Yan waved to her.

…

In the evening, Qin Simeng returned to the conference room where Wu Bin and Cao Yuan were and knocked on the door.

"Hey, senior? What's the matter?" Wu Bin, who came to open the door, said in surprise.

Qin Simeng smiled and carried the bag in his hand to Wu Bin: "I thought that if you were chatting so seriously, you might miss the meal time, so I brought you two meals."

Wu Bin, who smelled the aroma of rice, did feel a little empty in his stomach, and said happily: "Thank you, senior, for being so considerate." Then he turned back to Cao Yuan and said, "Senior Cao Yuan, do you want to eat something?"

"I'm a little hungry." Cao Yuan nodded and walked over, looked at the lunch box in Qin Simeng's hand and said, "Trouble."

"It's just a matter of convenience." Qin Simeng said, taking out the food from the bag and putting it on the table.

While setting it up, Qin Simeng turned her head and glanced at the blackboard, and found that it was filled with formulas that made her confused.

'I always feel like he is the only one who went to a real university...'