Seeing Chen Zhengping away, Xu Chuan returned to the hotel room alone, took out a notebook and pen from the suitcase, and sat down at the glass table. vent

Professor Brian Schmidt's question is interesting.

The extended application of the xu-weyl-berry theorem is used to calculate the high-dimensional space, verify the existence of the high-dimensional space, and find the way to enter.

But for now, that's not realistic.

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

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

Even the four dimensions of time proposed in Einstein's special theory of relativity have not been verified at present.

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

Clocks and stopwatches are just things that humans have made up themselves.

......

Sitting at the glass table, countless thoughts came to Xu Chuan's mind, and he finally breathed a long sigh of relief.

Although it is difficult to calculate high-dimensional space with the extended application of the xu-weyl-berry theorem, it is impossible to do it at present.

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

Could the extended application of the xu-weyl-berry theorem be used to calculate gravitational fluctuations, or the existence of space-time wormholes or something similar?

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

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

Of course, he had no direct evidence to prove the existence of such a thing, but after the discovery of graviton, scientific intuition told him that there is a high probability that such a thing as a wormhole in space-time really exists.

Whether natural or artificial.

In his previous life, he studied a lot of things, such as controlled nuclear fusion, the use of dark matter and dark energy, the fluctuation of gravitons to hook space, etc., these cutting-edge problems in the field of physics are all within the scope of his research, but some are in-depth and some are shallow.

Among them, the graviton's hook space fluctuations are the kind that are relatively shallow.

Before he was reborn, the idea was only theoretical, without any experimental basis.

Speaking of this, we have to mention gravitons. vent

A graviton, also known as a 'graviton', is an imaginary particle in physics that transmits gravitational pull, and the gravitational force between two objects can be reduced to the graviton exchange between the particles that make up the two objects.

In order to transmit gravity, gravitons must always attract, act in an infinite range, and appear in an infinite number of forms.

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

In the m-theory, gravitons are defined as free, closed-strings that can propagate to higher dimensions outside the cosmic membrane and to other cosmic membranes.

This is the basis of graviton.

The existence of gravitons was proposed because quantum theory has been very successful in various aspects, such as electromagnetism, which can be explained by the quantization of photons (quantum electrodynamics). The fundamental forces of other aspects of the universe (weak and strong nuclear forces) can also be perfectly described by quantum theory.

Therefore, it is natural to hope that quantum theory can also explain gravity, so it is hypothesized that there is an undiscovered graviton with properties similar to photons, and eventually the theory of quantum gravity can be developed. vent

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

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

After the discovery of graviton, his mentor Witten's m-theory was actually partially completed.

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

Then the propagation of gravitons to transmit information or open a channel entered the frontier research scope of the physics community at that time.

Unfortunately, even until he was reborn, these things were purely theoretical.

Not to mention controlling gravitons to transmit information and open space-time channels, even how to stabilize gravitons to fluctuations in space is a thing that cannot be done. vent

But as a top physicist at the forefront of the field, he has studied gravitons more than anyone else.

Some things that you couldn't do in your previous life, you may be able to do in this life.

Today's question from Professor Brian Schmidt inspired him to connect from high-dimensional space to graviton.

And the mathematics he majored in in this life gave him the tools to try and 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 the Large Strong Particle Collider and the Graviton Waver to assist in verifying the correctness of these theories and calculations.

But now, he's found a path that might lead to the future. vent

......

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

Time passed bit by bit, I don't know how long it was, he opened his eyes, with a glimmer of light in his eyes, and a smile on the corner of his mouth.

"In a 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 taken as a function of velocity. Through the law of conservation of energy, the differential equation of motion energy is established:

f=de/ds=mc?=g(1/u-√1u2-1/c2), take the graviton velocity of the earth as the speed of light c, then there is a frequency f as follows: ......"

The ballpoint pen in his hand sketched mathematical symbols on the white notebook, and also wrote down theories and ideas.

Whether these things are true or not, but by now, he should be able to make a start. vent

And with the beginning, you can go down.

Choosing mathematics in this life is really the right choice!

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

......

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

Staring at what he had written down in his notebook, he puffed out his cheeks and exhaled.

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

But there is too little graviton data to allow him to continue his calculations.

To complete this theory, not to mention experiments, I am afraid that it is not as simple as solving controlled nuclear fusion, or even more difficult.

Because there is very little data related to graviton, he now has a few years of basic research in his mind.

To study this thing, the Large Strong Particle Collider is indispensable.

And the energy level may have to be increased to support more than 100 TEVs, and the current LHC of the European Atomic Energy Experiment Agency (EURATOM) has a collision energy level of only 14 or 14 TEVs.

The energy level is increased to more than 100 TEV, which needs to be increased by an order of magnitude on the basis of LHC, whether it is a magnetic hoop, a magnetic mirror, or a control scheme, or a superconductor material, observation equipment, detectors and other things must be comprehensively upgraded to do so.

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

Huaguo has attracted the attention of the physics community, with a budget of more than 150 billion yuan, and the energy level of the "Annular Positron Collider-Super Proton Collider CEPC", which is still under design, has only been increased to about 50 TEV.

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

However, upgrading the Large Intense Particle Collider is not intended 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, has done a study in which they designed an analytical model in which the benefit-cost ratio of the high-brightness Large Hadron Collider project was about 1.8.

In other words, for every CHF invested in the High Brightness Large Hadron Collider project, there will be approximately 1.8 Swiss francs in social benefits.

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

This is not to say that the start of the collider will have an economic effect.

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

Each time the Large Intense Particle Collider is operated, a large amount of data is generated, and these data may contain cosmic truths.

The discovery of elementary particles, such as the Higgs particle, does not seem to have much of a role in advancing science and technology today, but in the future, these things will become the most valuable treasure of civilization.

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

What is invested in science today will be found useful and valuable in the future.

...... vent

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

The conference, which only comes once every four years, is still not to be missed.

In particular, the presentations of other people who won the Fields Medal this year, as well as those of top mathematicians such as Tao Zhexuan, George Williamson, Brendler, etc., are not to be missed.

However, the older generation of bulls such as Wiles, Gowers, Deligne, and Faltins rarely gave presentations at the International Congress of Mathematicians.

On the one hand, it is necessary to leave some opportunities for latecomers, and on the other hand, the coffee positions and ages of these big bulls are too big.

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

Like Professor Déligne, although he is still working on the standard conjectures left by Mr. Grothendieck, his focus is now more on his position as a professor at the academy and training the next generation of mathematicians. vent

.......

After listening to the reports of many mathematicians for several days, Xu Chuan had some insights or ideas about the mathematical fields he was interested in, and he gained a lot.

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

After habitually choosing a report meeting, Xu Chuan reminisced about the harvest just now while walking, and as soon as he walked out of the hall, a voice came from his ears.

"Professor Xu Chuan, wait."

Looking up, it was Peverman, the head of Princeton's mathematics department, who stopped him, and Xu Chuan responded with a smile: "Professor Feverman, are you here too?" ”

"I'm here to find you, will I have time? Talk? Fefferman asked with a smile. vent

"Of course." Xu Chuan nodded.

"Then come with me." Peverman led the way to the sidelines of the report.

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 it, I haven't studied the NS equation during this time, and ideas and inspiration are so easy to get, and the phased results submitted to the Annals of Mathematics have not yet passed the review." ”

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

Peverman smiled and said, "Actually, I didn't look for you, I was entrusted to come here." ”

Hearing this, Xu Chuantong shrank and didn't speak again, he probably guessed what was going on, but he didn't care too much, this is Brazil, not the United States. vent

Following Peverman, the two soon arrived at a hotel outside the venue.

Entering the elevator, the two came to the place where Feverman lived, and entered the room, Xu Chuan's eyes moved, as he expected, he knew the people in the room, the director of the Immigration Office of the United States, who was responsible for the immigration of top talents, Qiu Chengtong, Chen Shiingshen, Yang Zhenhuan, these top talents were all pulled by them.

Seeing Xu Chuan, the people in the room quickly walked over, with a warm smile on their faces, and enthusiastically stretched out their right hands: "Hello, hello, this is Professor Xu Chuan, it's better to see than to hear, it's really young and talented." ”

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

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

Xu Chuan nodded and said, "Hello, Director Andreu." ”

Andre smiled and said, "I'm sorry to disturb Professor Xu, I hope it doesn't affect your affairs, come, sit here first." "Leak

Xu Chuan nodded and sat down.

It is expected that people from the immigration office of the United States are looking for him, but in fact, it can even be said that it is a little late.

According to his speculation, normally speaking, after Hodge's conjecture passed the peer review, the other party should have come to him, but for some unknown reason, it has dragged on until now.

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

"Professor Xu, try it, this is the dragon well before the rain brought by my friend before, it should be very good." Andre smiled and got 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'll give it to you later." vent

Andre smiled and took a sip of tea, and after chatting with Xu Chuan for a few words, he changed his words and said with a smile: "Our country is the most economically developed country in the world, and it is the first in the world in terms of scientific research, pension, medical care, education, welfare and other resources. ”

"We have the most open immigration system and an inclusive and multicultural atmosphere in the world, and there are millions of Chinese working here, who also enjoy the benefits and citizenship of the United States, and do not encounter any discrimination."

Xu Chuan's eyelids jumped, holding the teacup and not speaking, knowing that the other party's invitation was coming.

Sure enough, Andre continued: "I came here this time to invite you to join our country. Geniuses come out of teenagers, and for top scholars like Professor Xu, our country has always flocked to it. ”

"In order to show our attention and respect for you, we will improve your treatment in the United States, your annual salary will be double that of the current Princeton, give you an annual salary of 2 million meters, and buy a villa for you to live in Princeton, and configure a car worth 200,000 meters for you to use, all of which you can choose at will."

"In addition, we will match you with the corresponding scientific research funds, and will not allocate or interfere with your research, if you need it, the Mi Congress will give you the greatest help in scientific research."

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

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

"If Professor Xu is willing to immigrate, I will immediately arrange personnel to operate, and there is no need to teach you what to do throughout the process, you only need to sign your name on the document."

"Including your relatives, whether it is your parents or girlfriends, according to the three-generation relationship, as long as you are willing to do so, we will arrange immigration for you and pick them up to reunite with you as soon as possible."

"I wonder what your wishes, Professor?"

......