It is difficult to solve the problem of multi-track correlation effect and superconductivity in strongly correlated electronic systems.

Of course, Xu Chuan did not think that he would be able to solve this problem in a short time.

But at least, he already has an eyebrow for the mechanism of strong diamagnetism found on the KL-66 material.

I have to say that those two old gentlemen stood from different angles and gave him quite good inspiration.

Whether it is Mr. Yang's electrodynamic behavior of strongly correlated systems in non-equilibrium state, or Mr. Qiu's free electrons in strongly correlated states as e-liquid or electron-solid mode, they are all based on theoretically feasible points.

The former is suitable for KL-66 materials, while the latter has the potential to spread to the entire strongly correlated electronic system.

So after communicating with the two old gentlemen, he locked himself in the room of the Beihai Hotel and studied it attentively.

The days passed like this, and in the blink of an eye, New Year's Day had passed, and the time had come for the meeting of science and technology to lead the construction of the large strong particle collider.

Under Zheng Hai's reminder, Xu Chuan came to Fuxing Road.

The headquarters of the Science and Technology Institute is located here, and the conference will be held here.

Compared with the exchange meeting on the manned space landing project held last week, this meeting is just a small meeting in terms of scale.

However, in terms of the importance of the participants and the financial planning of the project, it is not weaker than the former, or even better.

After all, even after the increase in the total funding of the manned space landing project on the moon, it is now only tens of billions.

The budget for the construction of the large strong particle collider in the early years was almost 200 billion.

Of course, the technology related to the collider has been relatively mature, including superconducting materials, detectors, etc., and the need for funds has been reduced a lot, because the construction budget will also be reduced a lot.

However, even if the technology is mature and the budget is reduced, it is a large project of more than 100 billion yuan.

The one-time allocation of funds is also much more than that of manned spaceflight.

There is no way, this kind of basic large-scale scientific research equipment, no matter which one it is, costs a lot.

For example, the International Space Station, which is the largest space facility in low-earth orbit, is a joint research and development project of 16 countries, including the United States, Tsarist Russia and the European Space Agency.

And the pre-construction cost of this project has reached a full 160 billion meters of gold, which is still 160 billion meters of gold 20 years ago.

Or the Future Ring Collider (FCC), which was originally planned to be built in Europe but has now been largely grounded, is expected to cost about 21 billion euros.

It can be seen from this that with the exception of a very small number of top powers that have the ability to complete this kind of basic scientific research equipment on their own, most of them are almost jointly carried out by dozens of countries.

The conference was held in the headquarters building of the Science and Technology Society, and the number of participants was not very large.

When Xu Chuan walked into the building, a staff member immediately stepped forward, verified his identity, and led him all the way to the conference hall.

In the conference hall, many people had already arrived.

After seeing Xu Chuan, they all stepped forward to greet and communicate with him.

In today's meeting, this is the real bigwig, and his ideas can be said to almost determine the fate of the future collider.

Xu Chuan smiled and greeted these scholars and people from the political and government sects one by one, found his seat and sat down.

The presiding officer of this meeting was naturally Qin Anguo, who was a man of science and technology.

According to the process of the meeting, this Qin Qian first made a brief report on the whole meeting, but said: "This meeting is actually mainly to discuss some things and problems in the process of exchanging the construction and use of the large strong particle collider. ”

"The specific situation is in the information in front of you, and it has been sent to you before, so let's take a look at it again, and then let's discuss and exchange. You can say whatever you have to think, and the country needs your ideas and help. ”

Hearing this, everyone in the conference hall lowered their heads and flipped through them.

Whether or not to build a large strong particle collider is beyond the scope of the meeting.

At Xu Chuan's suggestion, the construction of the Large Strong Particle Collider was a foregone conclusion.

Today's discussion is about how to build, scale, budget, whether other countries need to be introduced, technology, etc.

Of course, for some of the questions and contents of today's exchange, basically everyone already has their own answers in their hearts.

After waiting for a while, Qin Anguo continued: "If there are no other problems, let's officially start, and if you have ideas and suggestions, you can raise your hand to discuss the arrangements for the materials in front of you." ”

Hearing this, someone in the conference hall immediately raised their hands.

"I have an idea about the construction of the Large Strong Particle Collider."

Qin Anguo looked over, and the one who raised his hand was Hua Guo's director representative at CERN, Director Tai Xuewen.

Since China became a member of CERN a few years ago, Director Tai has been responsible for communication between China and CERN.

"Director Tai, please speak." Qin Anguo nodded and motioned for the other party to continue.

Tai Xuewen cleared his throat and continued: "Regarding the construction of the Large Strong Particle Collider, I think we can learn from the CERN model and expand it into an international cooperation project. ”

"On the one hand, through multinational cooperation, we can save a lot of money ourselves. After all, according to the preliminary planning, the budget of 150 billion yuan is not a small number. ”

"If we can bring in funds from other countries, we can greatly reduce our own expenditures."

"On the other hand, through multinational cooperation, we can absorb the excellent materials, equipment, technology, and talents of other countries in the field of large-scale strong particle colliders."

"Especially CERN, in this regard, CERN's experience can be learned, whether it is the construction of the collider, or scholars in the field of fundamental physics, the introduction of these is of great help to us to build the collider."

Hearing this, there was a discussion in the conference hall, and many people nodded approvingly, thinking that this method was feasible.

"I think it's a feasible suggestion, both in terms of budget and technology, and if you work together, it really relieves a lot of pressure. CERN has a well-established experience in the construction of colliders, and if it is introduced, it will really help us save a lot of time. ”

"It's feasible, it's possible, but how does this guarantee our country's control over the collider? You must know that every time CERN starts a research project for the collider, there is a lot of debate. ”

"We can adopt a membership system, we do need the research and technology of other countries on the collider, and it is enough to use the membership system to ensure that our own scientific research projects are proportional."

"I don't think it's appropriate, we have already stockpiled the technology to build the collider, and the help of introducing other countries is not very great, and there is a risk that it may lead to the loss of control of the collider, so if we want to do it, it is better for us to do it ourselves, and the budget of 150 billion yuan is not unaffordable for us now."

In the chamber, there were those in favor and those against.

This kind of problem involves many aspects, and it is impossible for everyone to stand from one angle.

Suddenly, sitting opposite Xu Chuan, Mr. Yang Zhenhuan looked at Xu Chuan and directly led the topic to him: "I don't know what Academician Xu thinks about this problem?" ”

Hearing this, the conference hall suddenly fell silent, and everyone looked over one after another.

Being stared at by other people, Xu Chuan coughed lightly and said, "Regarding whether it is necessary to introduce CERN or other countries' technology, I think it is still necessary. ”

Hearing this, Mr. Yang glanced at him in some surprise, with his understanding, he should be opposed.

Xu Chuan didn't care about the eyes of others, and continued: "In the construction of the large strong particle collider, although we already have the corresponding technology, it is undeniable that CERN has been researching in this area for a much longer time than us, and the relevant technology in reserve is also more perfect. ”

"So the introduction of CERN is necessary."

After a slight pause, he continued: "But I think it is also quite necessary for us to have control over the collider that we have funded and built. ”

"The purpose of building the collider is, on the one hand, to explore physics, and on the other hand, to train physics talents for ourselves."

"If control is lost, and other people are at the mercy of others, some basic things need to be discussed and discussed, and it doesn't make much sense for us."

"Therefore, the built collider, no matter how it is controlled, must be in our own hands."

Hearing this, Director Tai Xuewen frowned slightly and asked, "If that's the case, how can we introduce the technology of CERN and other countries in the collider?" ”

Xu Chuan smiled and said, "It's very simple. ”

"My suggestion is that we should finance the construction of the collider ourselves, but we can communicate with CERN and other countries, and if they are willing to provide us with technical and human support in the process of building the collider, we can reserve a seat for them after the collider is completed."

"Just like the status we are now in joining CERN, we provide corresponding scientific research funds every year, and obtain corresponding jobs, research tasks, technical achievements and other things."

"In this case, if someone makes a fuss, we can easily kick them out."

"Of course, under normal circumstances, I believe that we would not do such a thing, after all, basic scientific research is a good thing for the whole world, and we are not some robbers."

Hearing this, Director Tai Xuewen frowned and asked, "What if they don't agree to this way?" ”

Xu Chuan said calmly: "Then I don't want them." ”

"According to the plan, this time we built the Very Large Hadron Collider with the standard of petaelectron volts, or even higher petaelectron volts."

"This will be the world's first large collider with a petascale electron-volt energy level, and the need for the collider is not only for ourselves, but also for the EU and other countries."

"The situation now is that although we need technical support from CERN, we don't necessarily need it entirely. And collision experiments are needed by all countries. ”

"The situation now is that we give them a chance, not that we beg them to join in, let alone give up control of the collider and turn it into a conference system."

"If they don't think they can do it, then let them build it themselves."

Hearing this, there was a trace of interest in the cloudy eyes of Mr. Yang, who was sitting opposite Xu Chuan, this is the character of this young scholar, in some places, he is quite domineering.

On the other side, Director Tai Xuewen frowned and said, "If CERN and other countries choose to refuse, we are afraid that we will be extremely short of manpower after the completion of the experiment of the collider." ”

"After all, it is impossible for us to support such a large-scale basic scientific research project as the research of the collider on our own, and there is great pressure in terms of future funding and expenditure."

Although there are many physicists in China, it is impossible to devote all of them to the large strong particle collider.

After all, there are a lot of other areas to develop.

The mission of basic scientific research equipment such as the collider is to advance human understanding of the natural world and provide basic scientific knowledge for solving real-world problems.

This type of work is very difficult to do by relying on the strength of one country.

It is beneficial to all humankind, but it is a great burden for the countries that build and use it.

Not to mention the huge amount of money spent on construction, just every start-up, maintenance and so on, it costs a lot of money.

What's more, its results are difficult to turn into applied technology and benefits in a short period of time.

Just like the verification of the Higgs particle and the study of the Standard Model, this kind of theoretical achievement only complements mankind's understanding of the universe and the physical world

In fact, I don't know how many years will go from time to time for the promotion of scientific and technological development.

Hearing this question, Xu Chuan smiled and said, "There will be no shortage of people." ”

"Even if countries such as the United States and the European Union refuse to join us, they will not be able to stop physicists from coming to us to do research. Unless they can provide a collider of the same strength as we do. ”

"But this can be said to be a difficult thing for the United States and the European Union."

"First of all, they are too busy investing in controlled nuclear fusion research nowadays, and it is difficult to allocate scientific research funds to invest in the field of colliders."

"After all, in addition to the huge amount of money required to build a large strong particle collider, a large budget is required to start the collision experiment every year."

"The current CERN budget alone has already caused dissatisfaction among many member states, and it is almost impossible for you to ask them to invest a huge amount of money in it, IMHO."

After a pause, he continued: "Secondly, even if the worst happens, the United States and the EU will follow up on investment in this field, and the collider they built will hardly surpass us in terms of energy level." ”

"Don't forget that the core of the collider is superconducting materials and detectors."

"The ability of the critical magnetic field of superconducting materials to confine particles determines the strength of the collision energy level, and in this regard, the critical magnetic field of the high-temperature copper-carbon-silver composite superconducting materials I have studied is the highest superconductor at present."

"Without top-level superconducting materials, it is difficult for them to compete with us in the collision energy level. I believe that CERN's cancellation of the order for high-temperature copper-carbon-silver superconducting materials under pressure from the United States is the one thing they regret the most. ”

"And scientists are realistic, and if we welcome and accept other scientists to come in, there will be no shortage of people."

"As for the cost, it is undeniable that every start of the collider consumes a lot of electricity, which is why it costs a lot of money every time it starts."

"But let's not forget that for us, electricity will be the least lacking thing in the future. A small, controllable fusion reactor would be enough to power a large collider. ”

"Aside from electricity, other aspects can account for at most half of the cost."

As he spoke, he looked at Director Tai Xuewen and continued, "Finally, and more importantly, I'm here!" ”

"I can say that no one but me will be able to find a particle that is truly beyond the Standard Model in ten years."