Chapter 518

In the apartment.

Xu Qingzhou stood by the window. The cold wind drilled through the gaps in the window and blew onto his face, making him feel refreshed.

He exhaled a breath of turbid air and rubbed his temples, relaxing the fatigue left by high-intensity brain use.

YO (yttrium oxide) nano-doping is not actually complicated to talk about; many research groups have used this method in experiments.

One needs to first consider the pinning potential theory, solve the flux line motion equation, and predict the critical current density. After that, it involves phase-field simulation, Monte Carlo simulation, and so on.

These were all familiar methods. This part of the content was not difficult, and he finished it in just one day.

Next is the pre-calculation part of the pinning parameters; one must determine how many YO particles need to be input. In addition, thermodynamic stability analysis is also required.

After all these are done, the truly hard nut to crack comes.

Combining YO nano-doping with their substrate-free niobium-tin (Nb3Sn) thin film and being able to improve performance is a technical job.

At the very least, he didn't have any good methods right now.

"Meow~"

Er Miao leaped nimbly onto the desktop, flicking its tail as it bounced toward the computer keyboard. Fortunately, Xu Qingzhou was quick-eyed and fast-handed, grabbing this silly cat up.

Apparently, Er Miao had mistaken the computer for an electric blanket.

He closed the computer and went to sit on the sofa for a while, preparing to see how the mathematical community was doing recently.

Don't say, although a month had passed since the number theory seminar, the mathematical community was still very lively. As Holn said, the mathematical community had set off a research boom in supersymmetric function theory.

Everyone wanted to be the first to eat crab, to find the subversive mathematical tool in Xu Qingzhou's words, and to leave a rich and colorful mark in the history of mathematics.

Currently, three distinct factions have formed.

One faction strongly supports his views, even somewhat fanatically, claiming to have found a goal to strive for for the rest of their lives.

Harvard, MIT, Princeton, etc., all have mathematicians who have set up corresponding research groups, preparing to show off their skills in this area.

Xu Qingzhou leaned back and grabbed the tablet on the table, opening it to look at two reports for applied research projects.

A bit disappointed, they didn't break through the framework he predicted at the report meeting, and there wasn't even a point of view that could make people's eyes shine.

The opposition believes that introducing physical concepts into mathematics is a betrayal of mathematics. At the same time, they emphasize that supersymmetric function theory only exists in concept. To date, no one, including Xu Qingzhou, the proposer, has given a complete definition, so it has no practical significance.

The neutral faction continues to eat melons.

If it were a new concept proposed by someone else, they might scoff at it, but the proposer is the new Fields Medal winner, who was hailed as one of the greatest mathematicians of the 21st century at a young age.

"Unfortunately, I really don't have time to study it carefully right now."

Xu Qingzhou shook his head. The most important thing right now is the experiment at hand, which to a certain extent concerns the arrangements for the next period of time. If the experiment is successful, it means being able to sell patents. At that time, perhaps he can set up his own laboratory. With money in hand, the choices will also be a bit more.

The third day of Xu Qingzhou's research on YO nano-doping.

A corner of the desk was piled with manuscripts, all the results of several consecutive days of crazy calculations. He had deliberated on all feasible methods.

At this time, Carson called to report the achievements of this period. He led Sun Simin and Ma Ersi to work for many days and finally confirmed that the combination of WS/NbC/Nb3Sn mentioned by Xu Qingzhou is feasible and can effectively alleviate the problem of insufficient mechanical stability and durability.

Xu Qingzhou tapped his fingertips lightly, feeling that finally, something was going smoothly. He had arrangements in his heart long ago and said in a deep voice: "I know. You continue to iterate first and try to construct a few more transition layers. It is best to design a gradient interface. As for me... I still need some time."

"No problem."

Pausing for a moment, Carson on the other side of the phone continued to ask: "Professor, have you paid attention to the latest news on superconducting thin films?"

"Oh? Is there other new news?"

The pen in Xu Qingzhou's hand stopped. These days he only cared about doing calculations; how could he have the heart to look at the progress news of other research groups.

Carson said: "Yesterday, the James team at our school released the latest progress. Their superconducting thin film's Jc has already reached 2.5×10^6 A/cm², and Tc achieved 8K±0.1K. Also, the Avery Laboratory at Cambridge seems to have big moves..."

Last year, Princeton used molecular beam epitaxy and atomic layer deposition technology to prepare atomically flat superconducting thin films, and Jc had already reached 3.0×10^6 A/cm².

And the James team had long ago achieved the goal of 2.5×10^6 A/cm² for atomically smooth tantalum thin films.

However, this time it is another track. Similar to Princeton's experiment, the James team developed low-temperature film-forming technology based on chemical solution deposition. When meeting the above standards, they expect to extend the qubit coherence time from 200ms to over 500ms.

"Tsk tsk, the competition is getting more and more intense."

Xu Qingzhou couldn't help but sigh. As expected of a top global team, the efficiency is high.

Carson joked: "Yeah, Professor, do you think we should also join in?"

"Good idea." Xu Qingzhou nodded.

"Ah?"

Carson was stunned.

Xu Qingzhou smiled, leaned back in his chair, and said: "Didn't we also make industrial-grade superconducting thin films? I think it's necessary to convey some confidence to everyone."

Everyone, human or ghost, is showing off.

"I agree!"

For such face-exposing things, Carson has always been the most active. Even if what is won is not necessarily fame, black fans are also fans, and the feeling of being paid attention to is very comfortable.

Xu Qingzhou said directly: "That's fine, you first spend some time organizing the industrial-grade superconducting thin film data, and send out some good-looking ones."

A common routine for "cheating" experimental funds is to put out a strange concept that seems to have a bright future but is actually a big pie, or to be like Xu Qingzhou and his team, first bring out some results that can be seen to cheat those bureaucrats who don't understand anything.

Of course, theirs is still different.

Although the funds are a bit tight, Xu Qingzhou still has no idea of looking for money now. There is still about six million left, which is enough if he saves a bit.

After chatting, the two hung up the phone.

Xu Qingzhou turned his attention to the verification manuscript in front of him.

As mentioned before, introducing YO nano-doping into high-density nanoparticles as artificial pinning centers is easy to implement in mathematical language; it is nothing more than establishing a few mathematical models and then stuffing YO nano into the samples according to the methods of other research groups.

But wanting to come up with something new and improve thin film performance is quite troublesome.

These past few days, he has connected some of his past ideas, hoping to find content suitable for this experiment.

But unfortunately, he still hasn't found a good technical means.

(End of chapter)