Xueba starts with change

Chapter 517 Mail
"This is the LHC laboratory that you most want to visit, and it is also the largest Large Hadron Collider in the world..."

When he said this, Mitch Johnstone's face was obviously full of complacency.

After all, only CERN is known as the largest particle physics laboratory in the world.

Only CERN has the world's largest hadron collider.

Many high-energy physics experiments must rely on the LHC to achieve.

With these, Mitch Johnstone, who is a CERN administrator, is indeed proud.

Hearing his words, many people in Friedman's team also showed novel expressions.

For a particle physicist, especially one involved in collider experiments, the LHC has absolute appeal.

Even Cross couldn't help looking around, not as interested as he was when he visited other accelerator laboratories a few days ago.

It seems that the expressions and emotions of the people around are not in place yet.

Mitch Johnstone continued: "The LHC is not only big, but also has a big appetite. We went to watch it first. It started operating in 1976. The two-kilometer-diameter ring super proton synchrotron is the center of the LHC injection. sons and heavy ions."

"Speaking of which, super proton synchrotrons, used to be used as proton-antiproton colliders, and accelerate high-energy electrons and positrons, and then these particles are finally injected into the large electron-positron collider ( LEP)."

"The 27-kilometer-diameter circular tunnel that is hidden by the LHC today was once owned by the Large Electron-Positron Collider (LEP)."

"It's just that it has been shut down and replaced by the higher-energy LHC..."

Mitch Johnstone talked about the history of LHC and also demonstrated the power of CERN.

It has to be said that this circular accelerator buried 100 meters underground is indeed a great project in the field of physics.

It is jointly funded and built by universities and laboratories belonging to more than 34 physicists from [-] countries.

Even though it is such a large-scale international cooperation project, there are so many manpower and material resources.

If it were not for the tunnel used by the original Large Electron-Positron Collider (LEP), it is estimated that the Higgs boson discovered by the LHC would have been delayed for many years.

But even so, the LHC Large Hadron Collider project still took nearly 14 years to complete.

During the period, more than 80 countries actually participated in the construction of LHC, and the number of scientists and engineers reached nearly [-]!
"It is indeed the largest and highest energy particle accelerator in the world!"

"Yes! No matter from which point of view, LHC is well-deserved number one in the world!"

After Mitch Johnstone finished his introduction, he also heard the exclamation of researchers in Friedman's team as he wished.

Mitch Johnstone looked at the expressions of the people around him with satisfaction. This is the expression he should have when he saw the LHC laboratory.

However, when his eyes came to Chen Zhou's face, his expression suddenly became a little dissatisfied.

Because there was no surprised expression on Chen Zhou's face at all because of his introduction.

Still as flat as ever.

Involuntarily, Mitch Johnstone thought of the strange expression on Chen Zhou's face when he visited the proton synchrotron that day.

Could it be that this kid has discovered something new?
Or, does he have his own ideas about large colliders?

Or, does he have more ideas about the energy of LHC?
Mitch Johnstone was a little confused.

He felt that Chen Zhou, although he looked very young on the surface.

But in fact, it is very mature and stable.

He couldn't see through Chen Zhou at all, nor could he guess what the other party was thinking.

He feels that it is definitely not easy for someone who can make research results at the level of the Nobel Prize in Physics!
Subconsciously, Mitch Johnstone looked at Chen Zhou twice more.

Chen Zhou, who was thinking about the problem, suddenly felt something, and turned his head slightly to look at Mitch Johnstone.

Mitch Johnstone quickly withdrew his gaze, with a standardized smile on his face, and continued to introduce the power of LHC and its few brilliance.

Seeing Mitch Johnstone's appearance, Chen Zhou frowned slightly.

"What's the situation? Even if you think I'm handsome, you can't keep staring at me quietly, can you?"

Chen Zhou complained silently in his heart.

In fact, he was also thinking about the LHC mentioned by Mitch Johnstone just now.

Of course, what Chen Zhou cares about is the equipment structure of LHC, the Large Hadron Collider, and its research experience.

And none of these appeared in Mitch Johnstone's mouth.

Chen Zhou paid attention to the observation just now, and also had a brief communication with the researchers in the laboratory.

Naturally, Chen Zhou didn't ask questions about the structural details of the LHC, and it was impossible for him to ask.

According to Chen Zhou's preliminary understanding, the most basic tunnel of the LHC itself is located underground.

The rest, such as cooling compressors, ventilation equipment, control motor equipment, freezing tanks, etc., are all facilities built on the ground.

For more structural features of the equipment, Chen Zhou can only speculate based on the accelerator structure he knows.

Of course, Chen Zhou is not completely unaware of some unique features of the LHC.

The four collision points of the LHC acceleration ring are respectively equipped with five detectors in the crypts of the collision points.

Among them, the toroidal instrument and the compact muon coil are general-purpose particle detectors.

The other three, the LHC Bottom Quark Detector, the Large Ion Collider, and the Full-Area Elastic Scattering Detector, are smaller special purpose detectors.

Knowing about detectors is quite useful to Chen Zhou.

Because he himself has innovative research on particle detectors in the glue ball experiment.

Just compare it with the one on the LHC, and then prepare for the particle research later.

As for the research experience of the LHC, Chen Zhou has no choice.

No laboratory will voluntarily disclose the details of its own research.

These are absolutely impossible to let outsiders know.

Chen Zhou can only deduce the paper experiment based on the known literature content.

That's right, Chen Zhou's collection of wrong questions can still be used in this way.

This is also Chen Zhou's latest use, another great use of the wrong question set.

The LHC Large Hadron Collider Laboratory is the last laboratory visited by Chen Zhou and Friedman.

Mitch Johnstone strictly controlled the time of the visit, and soon ended Chen Zhou's visit to their LHC laboratory.

Reluctantly, a group of Friedman's team left the LHC laboratory.

Only Chen Zhou, who Mitch Johnstone couldn't see through, didn't show any nostalgic expression.

Leaving CERN, ready to drive back to the hotel.

Many people are still discussing the LHC collider laboratory with great interest.

Hearing their discussion, Chen Zhou shook his head slightly.

After getting in the car, Chen Zhou just looked out of the car window, thinking about his own affairs.

In fact, Chen Zhou felt that in a place like CERN, even if these researchers stayed, they might not be able to get a satisfactory arrangement.

After all, this is CERN.

Even if Chen Zhou is not very interested, CERN is undeniable, the world center for particle physics.

Unfortunately, many people may not understand this truth.

Appearance is also the most confusing thing.

In three days, Chen Zhou and the others visited the entire CERN laboratory.

Although some places are strictly prohibited to visit.

But in general, the whole visit journey is quite pleasant and satisfying.

CERN, a network of accelerators and decelerators, also left a deep impression on Chen Zhou.

Low-energy particles like the two linear accelerators are injected into the proton synchrotron.

The proton synchrotron is then boosted to provide particle beams for other, more powerful superproton synchrotrons.

At the same time, the proton synchrotron also provides particles for the on-line isotope mass separator to study unstable nuclei.

The Super Proton Synchrotron, as Mitch Johnstone said, injects neutrons and heavy ions into the LHC Large Hadron Collider.

It can be said that CERN effectively connects each accelerator in series.

Thinking of this, Chen Zhou was actually a little distracted.

He thought, if he could control such a large particle physics laboratory, how would he deploy researchers and how would he arrange the entire experimental plan.

Chen Zhou thought about it, the car stopped and arrived at the entrance of the hotel.

Seeing Chen Zhou's strange expression, Cross couldn't help feeling curious.

So, after Friedman got out of the car, when Chen Zhou got out of the car, Cross asked, "What's wrong with you? Did you think of the answer to any topic?"

Chen Zhou froze for a moment, the hand that opened the car door froze in mid-air.

He turned his head slightly, and smiled mysteriously at Cross: "I can't tell you that, Professor Driver..."

After finishing speaking, Chen Zhou laughed and walked away.

Only Cross was left with black lines all over his face.

After returning to the hotel, Friedman began to arrange for the seminar to start tomorrow.

After visiting all the collider laboratories, the discussion of academic topics will follow.

After Friedman finished arranging things, Chen Zhou went straight back to the room.

Originally, Chen Zhou planned to sort out the problem of CERN's collider. Fortunately, in the subsequent exchanges, he further understood and confirmed it.

However, when he just turned on the computer, he saw an email reminder.

After thinking about it, Chen Zhou opened the email first.

The content of the email is a discussion about a problem in algebraic geometry.

Specifically, it should be a hard problem in the field of dual rational geometry.

In algebraic geometry, birational geometry deals with properties of algebraic varieties that are invariant under birational equivalence, that is, properties determined by their functional fields.

These properties include dimensionality, arithmetic genus, geometric genus, Xiaoping dimension, and so on.

Birational geometry includes both the curved case and the high-dimensional case.

And the content in the email is obviously a deep research on the field of double rational geometry.

After Chen Zhou finished reading, he habitually picked up a pen and checked the calculations on the draft paper.

After a while, he frowned and stopped the pen in his hand.

"This kind of starting from the simplest one-dimensional complex cluster, to the two-dimensional case, to the three-dimensional case, to the four-dimensional and above cases, is a bit wrong..."

"It stands to reason that this is not the case..."

Chen Zhou muttered to himself.

In the field of birational geometry, the simplest one-dimensional complex variety was confirmed by Professor Riemann as early as the end of the 19th century.

The two-dimensional situation and the three-dimensional situation were also gradually understood in the 20th century.

Only in the case of four dimensions and above, there are still many key problems.

And the content of this email gave Chen Zhou the feeling that the re-derivation from one-dimensional to high-dimensional is very weird.

This kind of weirdness is wrong when you look at it as a whole.

But if you look closely, you can't verify the error.

While Chen Zhou shook his head slightly, there was a strong interest in his eyes.

It just so happens that he plans to determine a mathematical research topic from the field of algebraic geometry and his mathematical blueprint in the near future.

The content of this email gave him some ideas.

Taking another look at the draft paper on the table, Chen Zhou intends to reply to this email first so that he can maintain communication with the other party.

When Chen Zhou noticed the sender's name, he was stunned.

He didn't expect that it would be this person who sent him an email.

But if you think about it carefully, it seems that this person is indeed studying the field of algebraic geometry.

And double rational geometry is indeed what he is studying.

After thinking about it, Chen Zhou edited: "Brother Xu, I have read the email you sent. But I always feel that there is something strange, and I can't find out the specifics. I will study it later."

After editing, Chen Zhou read it again silently, and then sent it to Xu Chenyang.

What Chen Zhou didn't know was that Xu Chenyang was not the one who communicated the problem in the first place.

It's Professor Terence Tao who knows a little bit about everything.

However, Tao Zhexuan gave him a suggestion after reading it.

Tao Zhexuan said this: "You Yanda has a person who is very good at dealing with such problems. You can discuss it with him. As for me, I am definitely not as fast as him..."

So, Xu Chenyang sent this email to Chen Zhou.

After the email was sent, within a few minutes, Chen Zhou received a reply from Xu Chenyang.

There is only one sentence in the text: "You should read these documents first, and communicate anytime if you have any questions."

Then there are more than a dozen attachments hanging from the literature.

The moment he saw the attachment, Chen Zhou raised his eyebrows slightly: "It seems that senior brother and I are the same kind of people, even these documents are too few, right?"

Afterwards, Chen Zhou downloaded the attached documents, and searched for another wave of documents on the Internet.

With the deepening of literature research, Chen Zhou became more and more interested.

The problem-solving method of double rational geometry focuses on the study of the large ones while ignoring the small geometrical parts.

Nearly 40 years ago, mathematician Mori Shigebun extended the traditional method of algebraic surface classification to three-dimensional algebraic varieties.

And the traditional method is applied to the minimal model concept of algebraic surface, which promotes the further research of double rational geometry.

In fact, the goal of the research field of birational geometry is to prove that the so-called minimal model program is feasible.

This is a specially designed algorithm to turn any algebraic variety into beautiful basic components.

Of course, Chen Zhou saw more content from it.

He felt that his mathematical blueprint seemed to be able to be expanded...

At 8 o'clock in the evening, Chen Zhou was immersed in the literature, unable to extricate himself.

His thoughts were interrupted by a knock on the door.

　Thanks to book friend Yan Hongxue for the 100 starting coins!
　　
　
(End of this chapter)