Although the current Institute of Xuyang is quite small, the sparrow has all kinds of equipment, but the area is quite large. Compared with the Academy of Sciences, it is not worth mentioning at all. Fortunately, it surpasses others in terms of equipment.

There is Xiaoman such a strong and powerful trench, any equipment can be done, no money can not do things, if there is... Let Xu mang threaten, sell it may be retaliated.

The study of superfluid helium is not a very complicated research. Xu mang only got inspiration from a paper and got some results through theoretical calculation. Of course, experiments are needed to prove it.

As expected,

Xu Mang's initial calculation results were questionable. He initially thought that the semi quantum vortex would disappear when the temperature was lowered. However, according to the experiment, when the superfluid helium cooled to a certain temperature, the semi quantum vortex still existed, and the non topological wall appeared at this time.

Although the physical wall does not hinder the flow, the non topological wall will change the magnetism of helium, which is similar to Xu Mang's assumption, just as superfluid in the volume of nanostructures is cooled.

To Xu's surprise, he also discovered the second sound velocity in Bose Einstein condensate, which is a quantum phenomenon. Besides the normal sound of liquid, there is a second sound phenomenon in superfluid helium.

This is due to the quantum nature of liquids, where the first sound is heard first, and then when it appears in the second sound, there is a second chance to hear it, even though the sound is weak.

Although the traditional second sound theory has been successfully applied to superfluid helium, the emergence of Bose Einstein condensates has brought new challenges.

Therefore, Xu mang proposed a new theory to capture the second sound in these quantum liquids. This is completely due to Xu Mang's discovery that the second sound in superfluid helium is faster, so he proposed Feynman path integral to expand the superfluid theory.

In Feynman's path integral theory, quantum mechanics is expressed as the summation of trajectories, and Xu mang modified these trajectories. In the old path integral, they contain the information of quantum fluctuations, extending from a to B, which is a visualization of the trajectory into the path integral, and the cross section is more or less circular, and the diameter along the length direction is constant.

But in the new path integral, the shape of the cross-section can be changed, it can be the shape of an ellipse. Xu mang called these quantum mechanical states squeezed states, so it can be applied to any method based on path integration.

"Alas..."

"I don't know if it can be adopted." Xu sighed blankly. He wanted to use this method to solve many phenomena on the interface between quantum physics and classical physics. Although there are not many examples to solve, after using this new framework, many problems will be able to get insight in essence.

In short,

Xu Mang's use of superfluid helium leads to two viewpoints: the new quantum structure in superfluid helium and the new superfluid theory.

However, Xu mang is worried that these super strong theories may not be accepted by the people of the world. After all, it is too much ahead of time. Especially the new superfluid theory behind, it will certainly welcome many people's scolding. Of course, these people should be from Europe and the United States.

For example, what kind of BBC or CNN, such as the "New York Times", is a group of psychopaths who like to smear Xu blankly, whether it is the BBC, CNN or the New York Times, as well as some messy ones.

I can't understand these people's thinking. Maybe to them, the main China or itself has a little bit of trouble, that is, to fight against them. But think about it carefully... This is the routine used by Europe and the United States to solve contradictions by using contradictions.

After leaving the laboratory,

Xu mang returned to his office, cocking his legs and looking like a slouch. He didn't have the dignity of an academician at all, leaving only a faint smell of salted fish and a trace of decadence.

After a knock on the door,

there was a knock on the door,

then Wang AI went to the door with a stack of documents. Xu mang had to say that she took good care of her, and Wang AI did not live up to Xu Mang's expectations. During her working time here, she has grown a lot and published many important research reports.

It's a pity...

I didn't come to visit during the Spring Festival. According to the truth, she was her leader, brother and teacher.

"Academician Xu."

"This is the most mysterious gravitational wave we've detected recently." Wang AI submitted a paper, followed by a second, seriously saying, "this is what we simulated through the simulation diagram. The star was stretched by the tidal force just before the violent explosion."

Xu mang checked it carefully, raised his head and asked, "do you want to say that this is the merger of two original black holes? Previously, the concept of primary black hole was proposed in the study of the expansion of supermassive black holes. How come this time? "

"No, no, no!"

"We've summed this up to neutron star collisions." Wang AI said, "in fact, academician Xu, the purpose of my coming here is to ask you to transfer me to other departments.""Ah?"

"Transfer to other departments?" Xu mang was stunned for a moment and asked curiously, "what? Broke up with the rest of the team? "

"No

"I want to challenge physics in other areas." Wang AI said with a wry smile, "astrophysics is not my strong point at all."

"..."

"does Sun Chuan smile know?" Xu asked.

Wang AI nodded and said seriously: "brother sun knows, he asked me to discuss with you. If you agree, you will let go. If you don't agree, I can only stay in the gravitational wave detection laboratory."

Xu Mang: it's totally forced!

Forget it...

"MMM!"

"You are also a senior qualification. Although you are a little weak in qualification, it is difficult to match your research ability and achievements. Then you should work hard and bring some new people." "There should be no problem," Xu said

"Good!"

"We must finish the task." Wang AI said with a smile, "I want to do research on condensed matter physics."

Xu mang nodded, also know why Wang AI chose condensed matter physics, because it is easy to make achievements in this respect, which is like theoretical physics.

After Wang AI left,

Xu mang called his former head teacher, Professor Wang, and told him about his daughter's recent situation. In addition to a few words of thanks, it was more about the research findings in physics and the requirements of Xuyang Institute for new interns in the future.

Due to the change of nature, the requirements have been improved a lot. Before, only graduate students can do it, but now graduate students can't. Xu mang requires independent research ability. Although it will still be a team model, members still need corresponding research ability.

"This..."

"I'm a doctor." "What's more, it's too bad not to bring..."

"we don't have a few PhDs in our physics department in a year, and those who can read doctoral degree are all first-class." Professor Wang said with a bitter smile: "Xu mang... No more cattle can find it."

"There's no way..."

"the requirements are like this. Forget it... After all, I'm their senior brother." Xu mang said with a smile: "you can be a doctor, but you must pass the corresponding political examination... This is the above requirement."

"Good!"

"I'll discuss it with director Fang."

Hang up the phone,

Xu stretches, looks at a pile of documents on his desk, and remembers that he has not written a research report.

"Tomorrow."

"Go home, take your wife!"

After packing up his handbag, Xu mang plans to go home with a pile of documents and go to Xiaoman's gentle village.

"Jingling ~"

all of a sudden,

the landline on the desk rang.

"Hello?"

"Who is it?" Xu Mang's tone is not very good, after all, it affects the time to go home to hold his wife.

"..."

"academician Xu... I am Gu Chong, head of the quantum materials and physics research group of the Institute of physics." After hearing Xu Mang's tone, Professor Gu thought that he had disturbed him and said helplessly, "I'm really sorry... Academician Xu, did I disturb you?"

"Ah?"

"Oh, no, No "What's the matter?" Xu asked curiously

"Keke..."

"academician Xu... We want you to help us solve a problem." Professor Gu said with a wry smile: "this problem can only be solved by you. It is about the magnetic driven electrical response. Our theoretical research shows that crystals composed of cerium, aluminum, germanium and silicon can produce new magnetic driven electrical responses."

"But in the experimental part..."

"it is not the result of our theoretical calculation at all. Unfortunately, our theoretical part is all wrong." Professor Gu said: "looking for a lot of people, can't solve this problem."

"Is it?"

"Oh, ooh..." Xu mang was anxious to go home without thinking. He said absentmindedly, "you can send it to my email first... Small problems and small problems..."

PA!

Hang up directly.

Professor Gu held up the phone with a confused look on his face. Is this the plot developing too fast? Just asked the research direction and questions, and then directly agreed to... This... This should not be asked a few more?

"Professor?"

"What did academician Xu say?" Asked a researcher present.

"Yes..."

"but it gave me the feeling that... It was very unreliable." Professor Gu frowned and said in a confused way: "other people have asked very clearly, but only academician Xu seems to be in the dark. He doesn't know what he has to face and thinks it's just a small problem."“???”

“???”

“???”

What's the situation?

Xu mang didn't even know anything, so he promised to help us solve the problem? Is it just a small problem?

All the people present looked at each other and saw the curiosity and fear in each other's eyes. What did academician Xu do? Is this the legendary expression of self-confidence?

Perhaps,

this is strength!

......

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