From university academician to chief academician

Chapter 278 Two ways to discover dark matter

Space Research Institute!

At this stage, because of the research on dark matter, many astrophysicists and astrophysics scholars from the National Astronomical Observatory and the Xia Institute of Physics of the Chinese Academy of Sciences have flocked to the Institute of Universe Research.

For dark matter research, the two institutes and one institute have made a lot of preparations.

Equipment such as the National Astronomical Observatory's astronomical telescope and the Xia Academy of Sciences' particle accelerator are on standby.

At this moment, many researchers in a large conference room are discussing the construction of dark matter models.

The so-called dark matter model is a dark matter model built with knowledge of mathematics and physics based on all the information about dark matter, assuming the existence of dark matter.

It is equivalent to saying that no one has seen something, but assuming it exists, then a model of the thing must be built for everyone to study, a bit like mathematical modeling.

More than 30 astrophysicists from all over the country were sitting in the conference room.

The focus of this dispute is Academician Ji Yu of the Institute of Physics of the Chinese Academy of Sciences and Academician Zong Shi of the National Astronomical Observatory.

Both academicians are well-known astrophysicists in the country.

Both of them have made great achievements in the field of astrophysics, but both of them have very stubborn tempers, especially in the academic field, and neither one can accept the other.

Ji Yu and the two were arguing there, and the others looked at them and echoed their arguments from time to time.

Yoshiha said: "The emergence of the Higgs particle has confirmed the feasibility of the standard model of dark matter. Later, a large number of experiments proved that it is more feasible to surpass the standard model."

The Higgs particle is the Higgs boson, which is known as the God particle.

It is a boson with zero spin predicted by the standard model of particle physics. It has no electric charge or color charge and decays immediately after being generated.

That means dying right after birth.

It was proposed by the British scientist Peter Higgs in 1964 as the existence of the Higgs field, and further predicted the existence of the Higgs particle.

In 2013, CERN physicists used the Large Hadron Collider to discover the Higgs boson, which became the theoretical support for the Higgs field.

The Higgs boson also exists in the universe. It interacts with four energies including dark matter, the non-zero rest mass of neutrinos and the matter-dark matter asymmetry of the universe. It can study strong interaction, electroweak interaction and gravity. The problem of the unification of interactions, and the origin of the universe.

"So I think dark matter models should have general relativity at their core."

Zongshi heard what Yoshiha said and argued rationally: "I object. Although Higton particles and dark matter are both products of studying the origin of the universe, there are big differences between them."

"In terms of properties alone, Higgs particles and dark matter are very different."

"Dark matter is the most invisible particle among all particles in the universe. It may be the main component of matter in the universe, but it does not belong to any known substance that makes up visible celestial bodies."

"The Higgs particle is different. It is an easier-to-find particle in the universe."

The reason why it is easier to discover is because the Higgs particle was discovered with the help of the Large Hadron Collider shortly after it was built.

The other three major particles of the four major particles in the universe have not been discovered, among which dark matter is the most difficult to discover.

"So, I think that building a dark matter model should use gravity as the core."

General relativity was proposed by Einstein, and universal gravitation was proposed by Newton.

These two are the two strongest people in physics.

Their research has affected the world of physics to this day, and many theories have not yet been fully demonstrated.

The world of physics will be affected by them for hundreds of years to come.

Newton believed that everything has the force of attraction to each other, which is the force of gravity.

Moreover, this gravitational force is directly proportional to the mass of the material and inversely proportional to the square of the distance between the materials.

Universal gravitation cannot solve how the gravitational force between objects is transmitted and acted.

Therefore, in universal gravitation, gravity is an action at a distance, and the transmission of gravity does not require time by default.

Later, Einstein proposed the special theory of relativity and believed that the speed of light is the ultimate speed of information transmission in the universe.

Therefore, Newton's universal gravitation's action at a distance obviously contradicts the special theory of relativity.

It was not until Einstein proposed the general theory of relativity that this contradiction was completely resolved.

General relativity believes that the essence of gravity is the curvature of space and time, and mass is the cause of the curvature of space and time. When an object moves in a curved three-dimensional space, it will tend to approach large celestial bodies. The intuitive effect of this trend is the attraction of gravity.

In other words, there is no gravity in general relativity. The reason why two objects attract each other is because of the equivalent effect caused by the motion of the objects in curved space.

This equivalent effect is described by the gravitational field formula of general relativity, which degenerates into the law of universal gravitation of Newtonian mechanics where gravity is weak.

Therefore, part of the general theory of relativity and universal gravitation are in conflict, and part of it is the supplement of general relativity to universal gravitation.

In today's scientific world, gravity is recognized by everyone.

However, the general theory of relativity has not yet been recognized by everyone, and there are still many doubts in it. As time goes by, it is being overturned or recognized by the entire scientific community little by little.

Next, the two argue on their respective points of view.

Although they were arguing, the two did not escalate to a personal conflict.

After all, they were only arguing academically and had nothing to do with personal conflicts.

Academics belong to academics, and personal conflicts belong to personal conflicts. There is no intersection between the two.

The rest just looked at their arguments, as academics are like this, they need arguments and arguments.

Otherwise, there is no way to arrive at a truth.

After a long time, Ye Fei waved and said with a smile: "Okay, you two, stop arguing now. Since one of you thinks it's better to use general relativity and the other to use universal gravity, let's have a competition!"

"You two each bring some people, one uses general relativity, and the other uses gravity."

"Which of you builds a better dark matter model will be used by us."

"What do you think?"

Jiyu and Zongshi looked at each other, and Jiyu said: "Okay, let's do it."

Zong Shidao: "I agree!"

Ye Fei looked at the others and said, "You can each join them. You can join whichever group you want to join. It's completely up to your own free will."

Yoshiha and Sose immediately looked to the rest of the group, whom they wanted to invite to join their group.

After all, building a dark matter model cannot be built by them alone. They need the help of many people.

Jiyu said: "Everyone, please join my group. I think it is very feasible to use general relativity to build a dark matter model."

"Academician Liu, Academician Zhang, Professor Xu, Professor Yang...are you coming?"

Zong Shidao: "Everyone, join my group. I think it is very feasible to use gravity to build a dark matter model."

"Academician Zhou, Academician Sun, Professor Wang...are you coming?"

In the following time, the two men began to attract the academicians and professors present.

Ye Fei saw this situation and knew whether it would end soon.

So Ye Fei stood up and walked out of the conference room and returned to his office.

In the study of dark matter, building a model is only the first step, the second step is to study the dark matter field, and the third step is its properties.

The final step is to discover dark matter and then capture it.

The next step is to study dark matter based on the discovered dark matter to prove the field properties of dark matter.

It is not until this step that dark matter can be applied.

Ye Fei looked at the dark universe star map on the computer screen and thought to himself: "If there is dark matter, there is dark energy, and there is also a dark universe. I don't know if there is dark life."

The universe is vast, and no one knows whether life on earth is the only life in the universe.

But many people predict that it is absolutely impossible for the universe to have life only on the earth, but also on other planets.

The reason why life on other planets has not yet been discovered is that, first, Earth’s technology has not yet reached the level of exploring other civilizations, and second, Earth’s people have restrictions on the structure of life.

The so-called life structure, such as the physical life on earth, is all carbon-based life.

But some scientists predict that there is another kind of life called silicon-based life.

The difference between carbon-based life and silicon-based life is that the structure of silicon-based life is more stable.

Silicon-based life has an extra electron layer in the carbon atom structure, which also makes silicon-based life more unstable.

Therefore, some scientists believe that carbon-based life is the only life in the universe.

Of course, some people think that there may be particles in the universe that are more stable than carbon atoms, or whose stability is close to that of carbon atoms.

Then, this element can also become a living structure.

Ye Feixin said: "There is a dark universe, there is dark matter, there is dark energy. If there is another dark life..."

"The dark universe is invisible. Could it be that dark life is also invisible?"

"Then what kind of life is this?"

Ye Fei smiled bitterly and shook his head slightly. He felt that his imagination was a bit open. How could this be science? This was writing a science fiction novel!

No, science fiction novels are not so science fiction, this is writing fantasy novels.

Ye Feixin said: "Let's talk about dark matter. It is too difficult to study dark matter theoretically. It would be much simpler if we could obtain dark matter from the universe and then deduce the theoretical knowledge of dark matter based on the actual dark matter."

This is like making an atomic bomb. If you have a made atomic bomb in front of you, and you can deduce the theory and application based on the made atomic bomb, then making an atomic bomb will be many times easier.

At this time, there was a knock on the door!

Ye Feidao: "Please come in!"

The assistant walked in and said: "Dean, the video connection of the director of the Satellite Navigation System Management Office is connected."

Ye Fei's eyes lit up when he heard this, and he smiled and said, "Turn in."

"OK!"

After the assistant said this, he left Ye Fei's office.

Soon, a middle-aged man appeared on the computer screen in front of Ye Fei.

The middle-aged man has an elegant temperament, wears a pair of glasses, has half-white hair, and looks to be in his sixties.

"Hello, Director Yang." Ye Fei smiled.

The Satellite Navigation System Management Office manages satellites in the sky.

"Hello, Academician Ye, I have long admired your name." Director Yang smiled.

"Where!" Ye Fei smiled faintly and said, "I have heard of your name a long time ago. I often saw you on TV when I was a child. I have admired you for a long time."

"Haha..." Director Yang laughed, feeling that Ye Fei's words made him feel very comfortable.

Then Director Yang stopped his smile and asked, "Let's stop flattering each other. Academician Ye, I wonder what you want to see me for?"

Ye Feidao: "Director Yang, I heard that the Wukong satellite once went to detect dark matter in the universe. Is this true?"

Dark matter is one of the most popular and cutting-edge studies in physics.

Many countries around the world are studying dark matter, including Northern Russia, Northern Russia, England, Israel and Xia. These countries have conducted research and have also sent satellites to detect dark matter in the universe.

The world's largest dark matter detector is LUX-ZEPLIN in Beili, or LZ for short.

Xia's Wukong satellite is a satellite specially designed to detect dark matter.

Director Yang said: "That's what happened."

Ye Fei asked urgently: "Then was dark matter detected?"

"How can it be that easy?" Director Yang shook his head slightly and said with a wry smile: "If dark matter was detected, it would have shocked the whole world."

"There is no need to debate whether dark matter exists."

Ye Fei felt very sorry.

Based on Ye Fei's understanding of dark matter, the most abundant particles in the entire universe are not hydrogen and helium, but dark matter, which accounts for 90% of all particles in the universe.

And there are so many particles that can be seen everywhere, but they cannot be discovered so far.

Even if satellites are sent into the depths of the universe, dark matter cannot be found.

Ye Fei shook his head in his mind: "If there is real dark matter, it will be very helpful to my research."

Director Yang suddenly said at this time: "Academician Ye, I heard that you discovered the dark universe at the National Astronomical Observatory some time ago?"

"Yeah!" Ye Fei nodded.

It's not surprising that Director Yang knew about this. After all, the dark universe star map discovered at that time had been handed over to the country.

As one of the important national departments, the Satellite Navigation System Management Office manages the country's satellites.

With the power of this department, they are qualified to see the dark universe star map.

Director Yang said: "Our department has also looked at the dark universe star map. Someone once suggested that we go to this universe to dig out dark matter, so that we don't have to work hard to detect dark matter."

Having said this, Director Yang smiled bitterly. He also knew that the distance between the dark universe and the earth is 10 billion light years.

Even if the earth is given five hundred years, it will not be able to upgrade its technology to the point where it can go to the dark universe.

Ye Fei's eyes flashed when he heard this.

Then, he shook his head in his mind and extinguished the thought in his mind.

That is impossible to achieve, at least not with current Earth technology.

Ye Fei still refused to give up and asked: "Is it true that you didn't find anything at all?"

"No!" Director Yang shook his head slightly: "Since 8:12 on December 17, 2015, my country has successfully launched the dark matter particle detection satellite Wukong with a launch vehicle from the Jiuquan Satellite Launch Center. It has been sailing in the universe for eighteen years. "

"But dark matter has not been discovered so far."

"By the way, dark matter has not been discovered, but supermassive black holes and gamma ray bursts have been discovered. Do you need this information? I can pass it on to you if you need it."

Supermassive black holes are a type of black hole with a mass between one million and ten billion times the mass of the sun.

Usually at the center of all galaxies, there will be one or several supermassive black holes.

Once on May 17, 2022, NASA released an audio signal from the black hole at the center of the Perseus galaxy cluster 250 million light-years away. The sound was like a horror movie.

Gamma rays are also called gamma rays or gamma particle flow.

The energy released by gamma rays in one second is the energy released by the sun in its lifetime. It is the killer of civilization in the universe.

The planet that the gamma ray passed through could not survive even ten seconds and eventually turned into ashes.

As a result, countless planets were destroyed by gamma rays.

Ye Fei shook his head slightly and said, "I don't need these for now. If necessary, I will contact you."

"Okay!" Director Yang said.

After the two chatted for a few words, they hung up the video.

Ye Fei sighed in his heart: "It seems that dark matter cannot be obtained, so dark matter can only be discovered through theory."

Dark matter was discovered to have two paths.

One is to detect it in the universe through satellites. This path requires powerful technology.

After detecting dark matter, the theoretical knowledge of dark matter is deduced based on the actual dark matter.

The second is to deduce dark matter theoretically, and then create a machine to detect dark matter.

Of these two methods, the first method is the simplest, but it requires powerful technology.

The second method is the most difficult to derive theoretical knowledge from dark matter that has never been seen before.

It is equivalent to starting something from scratch, which is very difficult.

Of course, both methods are difficult. One requires high technology, and the other requires high scientific research.

At this time, Ye Fei's cell phone rang.

Ye Fei took out his phone and looked at it, then frowned slightly and muttered to himself in confusion: "Director Li?"

The caller was the director of the Graphene Research Center.

Ye Fei previously developed C72 fullerene and carbon nanotube manufacturing methods at the Graphene Research Institute.

This resulted in the Graphene Research Institute being upgraded to the Graphene Research Center, and the original director of the Graphene Research Institute being upgraded to the director of the Graphene Research Center.

"Why is he calling me? By the way, since I left the Graphene Research Center, Director Li and Dean Gao have not been in touch for a long time."

Dean Gao turned out to be the director of the Fullerene Research Institute of the Graphene Research Institute.

Later, the Fullerene Research Institute was upgraded to the Fullerene Research Institute, and the director was also upgraded to the director.

When Ye Fei first went to the Graphene Research Institute, he did experiments with Dean Gao and discovered C72 fullerene.

Ye Fei answered the phone and said with a smile, "Director Li, long time no see!"

"Academician Ye, you are now a celebrity. You have never gone back since you left our Graphene Research Center!"

Ye Fei said dumbfounded: "It's my fault. I will definitely find a chance to go back in the future."

Director Li said: "Okay, I won't tease you anymore, Academician Ye, do you still remember that when you were doing experiments at our Graphene Research Center, you discovered a special material from graphene, but you didn't study it carefully at the time. "

When Ye Fei was doing experiments at the Graphene Research Center, he would record some unknown discoveries and leave them for others to study.

"Remember." Ye Fei said confused: "What's wrong? Did you discover that substance?"

"Of course, you don't know the magic of that material. It's really amazing." Director Li said excitedly: "I have never seen such a magical material."

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