After receiving Lu Zhou's reply, Carlson basically lost all hope, and the matter of the Millennium Problem Award was put on hold.

However, it is unknown who leaked the news, and the news of the Clay Institute's cancellation of the original award program spread.

And in the end, it was rumored that Lu Zhou refused to accept the award.

Since the NS equation was solved, a lot of media has been paying attention to the million-dollar bounty on the millennial puzzle. After all, for most people who don't pay attention to mathematics, whether or not the NS equation solution is proven or not is far less impactful than a million dollars......

A New York Times reporter wrote a commentary.

【…… After the Russian mathematician Perelman refused to accept the million-dollar reward, the Chinese mathematician Lu Zhou also declined the million-dollar reward. The millennial conundrum seems to be haunted by a mysterious spell, and those who solve these propositions eventually lose interest in money? 】

When he took the newspaper from Hardy's hand, Lu Zhou threw it into the trash can and shook his head after reading it.

"It's just nonsense, when did I say I refused to accept the award? I'm just asking the Clay Institute to wait, because I'm so busy that I can't find time to fly to Paris again. ”

Hardy: "Professor, did you turn down the Clay Institute's prize because you couldn't find time to accept it?" ”

Lu Zhou emphatically said: "It's a postponement." ”

Hardy shrugged helplessly: "Okay, it's a postponement...... Actually, Professor, I have a suggestion, but I don't know whether to say it or not. ”

Lu Zhou glanced at him: "What suggestion?" ”

Scratching the back of his head embarrassedly, Hardy smiled shyly and said, "I mean, if you really can't find the time, you can send me to Paris to collect the award for you." You're busy with your research, but I wouldn't mind going on a long trip......"

Lu Zhou: "......"

This guy ......

Haven't you been too idle lately?

……

The rumors about the outside world are just a small episode for Lu Zhou.

He was busy with plasma turbulence research, but he didn't have time to hold a press conference to clarify such a boring thing.

In addition to the awards, the trouble caused by the NS equation is not only the excessive attention of the media, but also from other aspects.

For example, since he returned from Brazil with the Fields Medal, his mailbox has been filled with invitations from all over the world.

Some of them are from domestic and foreign research institutions, some are from a university ranked in the top 100 in the world of mathematics, and some are not even from academia at all, but from a TV drama crew and a talk show......

After throwing all these emails to Xiao Ai to deal with, Lu Zhou felt a lot more relaxed.

When it comes to humane rejection and dealing with spam, Xiao Ai is like his intimate little padded jacket, and after he has demonstrated it a few times, he is now becoming more and more handy.

After arranging these trivial matters, Lu Zhou continued to return to his research work and began to study the problem of plasma turbulence.

It is worth mentioning that the difficulties of the turbulence problem mainly arise from two main types of problems.

The first type comes from the complexity of the system and the environment, and this complexity comes from the diversity of turbulent motion systems.

Taking spacecraft as an example, with the change of flight altitude, speed, and even the temperature of the area and material surface, the gaseous environment and macroscopic mechanical environment of the spacecraft are constantly changing.

As for the second type of complexity, it comes from the methodology of classical physics.

Traditional reductionism starts from the most basic components of material motion, and establishes the evolution equation of motion from the interaction law between the basic components. This may sound simple, given that many of the formulas of classical physics do not even require the methods of advanced mathematics.

In physics, however, "many are complex".

Taking the aircraft as an example, the flow field around a Boeing 747 will contain 10^15~10^24 microfluidic elements, and the mechanical analysis of each microfluidic element will be considered, and the disturbance caused by each other will be considered.

Therefore, most researchers who do fluid mechanics analysis have built all the models that are only visual, and different scholars can even get completely different results by using the same CFD method.

It is for this reason that turbulent CFD calculations, based on engineered closed theory, are often referred to as "art" rather than science.

The reason why people are so obsessed with the smoothness and existence of the solution of the NS equation is not just to know whether the unsolvable solution exists, but to hope that mathematicians can get something when they study this equation.

It may be a tectonic quantity that calculates the boundaries of the subsonic and sonic regions, or it may be an approximate weak form that can be applied to a limited extent, and what Lu Zhou obtains is the L manifold and the differential geometric method of dealing with partial differential equations.

For the plasma inside the stellarator, the first type of problem is not bad. Although the plasma at high temperature and pressure is unstable, at least the mechanical environment of the components of the entire plasma circulation is also uniform on a macroscopic scale.

As for the second category of problems, it is where the core difficulty lies.

However, the difficulty here is only for the average person.

When Lu Zhou applied the L manifold to the NS equation and built a mathematical model of the experimental data based on differential geometry, he found that although the whole work was full of complexity, it was not as difficult as he imagined.

Time passed, and a new page was turned in the calendar.

Early September.

Sitting in his office at the Institute for Advanced Study in Princeton, Lu Zhou stared at the computer screen indiscriminately, the pen in his hand writing and drawing on the paper from time to time.

As he typed the last line of calculations on the computer, he finally let out a sigh of relief and put down the ballpoint pen clipped to his fingertips.

"That's it!"

Hearing the professor's voice, Hardy raised his head in confusion, glanced at Qin Yue next to him, and then lowered his head silently.

Jericho and Vera secretly cast adoring glances at Lu Zhou, especially the latter, whose eyes seemed to be twinkling with little stars.

I don't know what the professor is doing, but I always feel like I'm amazing.

As for Wei Wen, who is working on his master's thesis, is indifferent to this. For him, who is interested in graduating this year and starting his PhD next year, these things are irrelevant.

In short, the professor has researched something awesome......

Not noticing the students' reactions, Lu Zhou quickly checked his mathematical model, then copied the data to a USB flash drive and walked out of the office with the USB flash drive.

Deriving equations is a task that can be done with the human brain, but when it comes to solving numerical values, the amount of computation is frighteningly beyond the reach of human beings.

In order to validate his mathematical model, and also to collect first-hand simulation data, he now needs a supercomputer.

The sooner the better!

……

As one of the richest universities in North America, Princeton's wealth is not only reflected in its willingness to spend money to poach people, but also in the construction of campus hardware facilities.

Although it is located in the humble town of Princeton, it has everything from plasma physics labs to supercomputing centers.

This shows how important it is for a university to have a financially strong alumni association behind it.

Princeton's school supercomputer, known as the John Norman Supercomputer Research Center, is mainly engaged in simulation research in condensed matter physics, plasma physics, celestial mechanics, and so on.

Although among the people Lu Zhou knows, there are experts in the field of parallel computing like David Shaw, Anton's powerful computing power is only reflected in the field of computational chemistry, and his performance in the field of general computing is not ideal.

What's more, David Shaw himself is not necessarily interested in plasma physics or fluid mechanics simulation, so Lu Zhou did not bother him.

After filling out the application form in Nassau, Lu Zhou did not wait long and quickly got the approval of the school.

Any research project linked to the PPPL laboratory is the most expeditiously approved.

Not to mention a Fields Medal winner.

Arriving at the John Norman Supercomputing Center with written documents, Lu Zhou found Professor Amal Green, the director of the research center, and explained to him his intentions.

After listening to Lu Zhou's request, Green's eyebrows raised in surprise.

"Unbelievable...... Are you sure you're not kidding? Have you successfully modeled the mathematical flow of plasma turbulence in stellaratorstellars? ”

Even though he wasn't a physicist, he knew what an amazing thing it was.

Lu Zhou sighed and shook the application in his hand: "There is still half a year before April Fool's Day, I'm sure I'm not joking." ”

Professor Green didn't talk nonsense and turned on the computer he was using for work, "Do you have that model with you?" ”

Putting the USB flash drive on the table, Lu Zhou said, "Of course." ”

After taking the USB flash drive and plugging it into the computer, after opening the files inside, looking at the data and images on the computer screen, Green touched the stubble on his chin, thought for a moment and said, "With all due respect, this looks difficult. I'm not sure if our John Norman can handle this magnitude of calculations, but you're probably going to need the Summit at Oak Ridge National Laboratory...... Isn't there a way to simplify this model? ”

Lu Zhou shook his head: "This is already the simplest form I can do. ”

"Well, you've got a problem for us on behalf of the PPPL lab," Professor Green said, turning the pen in his hand and thinking for a moment, "I can solve the algorithm part, but don't expect it to be done in a short time." ”

Lu Zhou nodded: "I know." And, I'm here to help. ”

Professor Green smiled and said, "This is necessary, after all, we are engaged in large-scale parallel computing, not plasma physics experts." ”

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