Great Country Academician

After seeing off Chen Zhengping, Xu Chuan went back to the hotel room alone, took out a notebook and pen from the suitcase, and sat in front of the glass table.

The question raised by Professor Brian Schmidt is quite interesting.

Use the extended application of the Xu-Weyl-Berry theorem to calculate the high-dimensional space, verify whether the high-dimensional space exists, and find the way to enter.

But for now, this is not realistic.

The high-dimensional space in the physical sense is just a conjecture put forward by physicists, just like parallel worlds, no one knows whether it really exists.

This kind of theoretical speculation is as unreliable as a floating root.

Even the four-dimensional time proposed in Einstein's special theory of relativity has not been verified at present.

Everyone can indeed feel the passage of time, but there is no direct evidence for the existence of a four-dimensional space based on time.

Things like clocks and stopwatches are just things made by humans themselves.

Sitting in front of the glass table, countless thoughts appeared in Xu Chuan's mind, and finally heaved a long sigh of relief.

Although it is difficult to calculate high-dimensional spaces with the extended application of the Xu-Weyl-Berry theorem, or it is currently impossible to do.

But Professor Brian Schmidt's question also brought him another inspiration.

Can the extended application of the Xu-Weyl-Berry theorem be used to calculate gravitational fluctuations, or the existence of space-time wormholes or similar things?

This is something he has been studying since he discovered the graviton in his previous life.

Similar to sci-fi movies, or the kind of space-time wormhole in science fiction, you can enter and travel to distant alien galaxies.

Of course, he has no direct evidence to prove the existence of such a thing, but after the discovery of particles such as gravitons, his scientific intuition told him that such things as space-time wormholes have a high probability of real existence.

Whether natural or man-made.

In his previous life, he researched a lot of things, such as controllable nuclear fusion, the utilization of dark matter and dark energy, graviton fluctuations to move space, etc. These cutting-edge issues in the field of physics are all within the scope of his research, but some are in-depth, some It's shallower.

Among them, the graviton's entanglement space fluctuation is the relatively shallow one.

Before he was reborn, this idea was only based on theory, without any experimental basis.

Speaking of this, we have to mention 'graviton'.

Graviton, also called "graviton", is a hypothetical particle that transmits gravitational force in physics. The gravitational force between two objects can be attributed to the exchange of gravitons between the particles that make up the two objects.

To transmit gravity, gravitons must attract each other forever, have an infinite range, and appear in an infinite number of forms.

In quantum mechanics, a graviton is defined as a boson with spin 2 and mass zero.

In the M-theory, the graviton is defined as a free closed string, and it can be propagated to the high-dimensional space outside the cosmic brane and other cosmic branes.

This is the basis of gravitons.

The existence of gravitons is proposed because quantum theory is very successful in all aspects. For example, electromagnetism can be explained by the quantization of photons (quantum electrodynamics). The fundamental forces in other aspects of the universe (weak nuclear force and strong nuclear force) can also be perfectly described by quantum theory.

Therefore, people naturally hope that quantum theory can also explain gravity, so it is hypothesized that there is an undiscovered graviton, whose properties are similar to photons, and finally a quantum theory of gravity can be developed.

Of course, in 2018, this thing is still unproven.

It will not be until 2030 that gravitons will be discovered by him and formally incorporated into the physical system.

After the discovery of gravitons, part of his mentor Witten's M-theory was actually completed.

Then the theory that gravitons can be propagated to the high-dimensional space outside the cosmic membrane, as well as on other cosmic membranes, can also be deduced.

Then, using the propagation of gravitons to transmit information, or to open a channel, entered the frontier research category of the physics world at that time.

It's a pity that these things are just purely theoretical things even until he is reborn.

Not to mention controlling the graviton to transmit information, opening the space-time channel, even how to stabilize the fluctuation of the graviton to space is impossible.

However, as a top physicist at the forefront of this field, his research on gravitons is deeper than others.

Some things that could not be done in the previous life, maybe can be done in this life.

Professor Brian Schmidt's question today inspired him and made him connect from high-dimensional space to gravitons.

And the mathematics that he majored in in this life brought him tools, enabling him to try to calculate things in this area.

The combination of the two is indispensable.

Of course, in the future, he will also need large-scale experimental equipment such as large-scale strong particle colliders and graviton wave devices to assist in verifying whether these theories and calculations are correct.

But now, he has found a path that may lead to the future.

In the hotel room, in front of the glass table, Xu Chuan held a ballpoint pen and closed his eyes in thought.

Time passed bit by bit, and he didn't know how long it had passed. He opened his eyes, with a glint of light in them, and a smile on the corner of his mouth.

"In the conservation system, the speed of motion is treated as a component of the speed of light in the direction of motion, so that the equation of motion is established, and time is regarded as a function of speed. Through the law of conservation of energy, the differential equation of motion energy is established:

F=dE/dS=mcω, mcω=mg', the solution is: ω=g (1/υ-√1υ-1/c), taking the speed of the earth’s graviton as the speed of light c, then the frequency f is as follows:.”

The ballpoint pen in the hand outlines mathematical symbols one by one on the white notebook, and also expresses theories and ideas one by one.

Regardless of whether these things are right or not, but now, he should be able to make a start.

And with the beginning, you can go down.

Choosing mathematics in this life is really a right choice!

The double superposition of mathematics and physics is far more than simple as 1+1=2.

He didn't waste much time on this road, he recorded some thoughts in his mind, and after a simple calculation, Xu Chuan stopped the pen in his hand.

Staring at what was recorded in the notebook, he puffed up his cheeks and exhaled.

Judging from the current theory, this may be a feasible way.

But the data related to the graviton is too little to support his further calculations.

To complete this theory, not to mention experiments, is probably not as simple as solving controllable nuclear fusion, or even more difficult.

Because there are very few data related to gravitons, he now has several years of basic research in his mind.

To study this stuff, large, powerful particle colliders are essential.

And the energy level may have to be increased to support more than 100 Tev. At present, the LHC of the European Atomic Energy Experimental Agency has a collision energy level of only 14 to 15 Tev.

To increase the energy level to more than 100 Tev, this requires an order of magnitude improvement on the basis of the LHC, whether it is magnetic ferrules, magnetic mirrors, or control schemes, or superconductor materials, observation equipment, detectors and other things. A full upgrade is required to do so.

This is not a simple project. After the LHC is upgraded to HL-LHC again, the energy level is only increased to 20-30Tev.

Huaguo has attracted the attention of the physics community, with a budget of more than 150 billion. The energy level of the super collider that is still under design - "Circular Electron Positron Collider-Super Proton Collider CEPC" has only been raised to about 50Tev That's all.

It can be seen how difficult and expensive it is to design and manufacture a large-scale strong particle collider.

However, upgrading the large strong particle collider is not for pure high-energy physics and particle physics research.

A strong particle collider can also boost a country's economy.

Massimo Florio, a professor of economics at the University of Milan in Italy, has done a study. In the analysis model they designed, the benefit-cost ratio of the high-luminance LHC project is about 1.8.

That is to say, for every CHF 1 invested in the High Luminosity Large Hadron Collider project, approximately CHF 1.8 will be generated in social benefits.

Of course, this social benefit is mainly improved in terms of technological spillover, talent training, research and development and launch of new technologies, cultural benefits, and scientific literature.

It is not to say that the start of the collider will bring economic effects.

In addition, among the social benefits of scientific research on colliders, there is another immeasurable "knowledge" benefit.

Every run of the Large Intense Particle Collider generates a large amount of data, which may contain the truth of the universe.

For example, the discovery of elementary particles such as the Higgs particle does not seem to have played a significant role in promoting technology today, but in the future, these things will become the most precious wealth of civilization.

Just like when the electromagnetic induction theorem first came out, no one paid attention to it, but now, electricity has become an indispensable physics for human beings.

Today's investment in the field of science, people will find its usefulness and value in the future.

He didn't waste much time on things like gravitons. After sorting out the thoughts in his mind, Xu Chuan left the room and returned to the International Congress of Mathematicians.

The conference is held only once every four years, so it is still not to be missed.

In particular, the reports of other people who won the Fields Medal this year, as well as the reports of top mathematicians such as Terence Tao, George Williamson, and Brundler, are not to be missed.

On the contrary, the older generation of big cows like Wiles, Gowers, Deligne, and Faltings rarely give reports at the International Congress of Mathematicians.

On the one hand, it is necessary to leave some opportunities for latecomers, and on the other hand, it is because the status and age of these big cows are too big.

Although many people like Deligne and Faltings are still engaged in mathematics work, their focus is no longer on breakthroughs in the boundaries of mathematics.

Just like Professor Deligne, although he is still studying the standard conjecture left by Mr. Grothendieck, his focus is now more on serving as a college professor and training the next generation of mathematicians.

After listening to the reports of many mathematicians in the report meeting for several days, Xu Chuan has more or less some insights or ideas about the areas of mathematics he is interested in, and has gained a lot.

The quadrennial International Mathematical Conference is indeed the top exchange report meeting in the mathematics field. Aside from those mathematicians who are invited to give 45-minute and one-hour reports, those who apply for the 10-minute report from the International Mathematical Union There is no shortage of eye-catching ideas in the report.

Habitually choosing a report, after listening to a report, Xu Chuan recalled what he had just gained while walking. Just as he walked out of the hall, he heard a voice in his ear.

"Professor Xu Chuan, wait."

Looking up, it was Fefferman, the dean of Princeton's mathematics department, who stopped him. Xu Chuan responded with a smile: "Professor Fefferman, are you here too?"

"I'm here to see you. Will there be time later? Talk?" Fefferman asked with a smile.

"Of course." Xu Chuan nodded.

"Then come with me." Fefferman took the lead and walked outside the report field.

Xu Chuan followed, and asked as he walked, "What do you think about the NS equation?"

Fefferman shook his head and said: "That's not true. I haven't studied NS equations during this period, and ideas and inspiration are not so easy to get. The phased results submitted to the "Annual Journal of Mathematics" have not yet passed the review. Woolen cloth."

"What's that?" Xu Chuan couldn't help being curious.

Fefferman smiled and said, "Actually, I didn't look for you, I was entrusted by someone."

Hearing this, Xu Chuan's pupils shrank and he didn't speak anymore. He probably guessed what was going on, but he didn't care too much. This is Brazil, not the country of America.

Following Fefferman, the two soon came to a hotel outside the venue.

Entering the elevator, the two came to the place where Fefferman lived. When they entered the room, Xu Chuan's eyes moved. As he expected, he knew the person in the room. He was the director of the US immigration office and was responsible for the immigration of top talents. , Qiu Chengtong, Chen Shiingshen, Yang Zhenxi and other top talents were all pulled over by them.

Seeing Xu Chuan, the people in the room quickly walked over, with a warm smile on their face, and enthusiastically stretched out their right hand: "Hello, hello, this is Professor Xu Chuan, right? Seeing is better than hearing a hundred things. Really young and talented."

Xu Chuan smiled and stretched out his hand to shake, and said, "Hello."

On the side, Fefferman introduced: "This is Professor Xu Chuan, and this is Director Andre Miller of the Immigration Office."

Xu Chuan nodded and said, "Hello, Director Andre."

Andrea smiled and said, "I'm bothering you, Professor Xu. I hope it doesn't affect your affairs. Come and sit here first."

Xu Chuan nodded and sat down.

It was expected that the people from the US immigration office sought him out, but it could even be said that it was a bit late.

According to his speculation, normally, after Hodge guesses that he passed the peer review, the other party should come to him, but for some unknown reason, it has been delayed until now.

On the side, Professor Fefferman made three cups of tea and brought them over.

"Professor Xu, try it. This is the Yuqian Longjing that my friend brought over. It should be very good." Andre smiled and stood up and brought a cup to Xu Chuan.

"Thank you." Xu Chuan took the teacup with a smile.

"Professor Xu likes it. I still have a pack here, and I will give it to you later."

Andre took a sip of tea with a smile, and after chatting with Xu Chuan for a few words, he changed the subject and said with a smile: "Our country is the most economically developed country in the world, whether it is scientific research, pension, medical education, welfare, etc. resources are number one in the world.”

"We have the world's most open immigration system and an atmosphere of tolerance and multiculturalism. There are millions of Chinese working here. They also enjoy the benefits and citizenship treatment of the United States without any discrimination."

Xu Chuan's eyelids twitched, and he held the teacup without speaking, knowing that the other party's invitation had come.

Sure enough, Andre went on to say: "I came here this time to invite you to join us in the country of the United States. Geniuses come out of youth, and the country of the United States has always been chasing top scholars like you, Professor Xu."

"In order to show our importance and respect to you, we will improve your treatment in the United States. Your annual salary will be double that of what Princeton currently offers, and you will be given an annual salary of two million meters in gold, and we will buy you a house in Princeton. A villa for you to live in, and a car worth 200,000 meters for your transportation, you can choose any of these.”

"In addition, we will match you with the corresponding scientific research funds, and will not allocate them, and will not interfere with your professor's research. If you need them, the United States will give you the greatest help in scientific research."

"Whether it's mathematics, physics, or astronomy, from supercomputers to large-scale strong particle colliders, to astronomical observation equipment, and even the Hubble Telescope, you can apply for it."

"Finally, the United States will hold a special coronation ceremony for you, awarding you the honor of academician of the National Academy of Sciences of the United States."

"If Professor Xu is willing to immigrate, I will immediately arrange personnel to carry out the operation. There is no need to teach you what to do in the whole process. You only need to sign the document."

"Including your relatives, whether it's your parents or your girlfriend, they are divided according to the three-generation relationship. As long as they are included and willing, we will arrange immigration for you and take them here to reunite with you as soon as possible."

"I don't know how you want to teach me?"