Chapter 539

Is your back on fire?

Do you still have this kind of operation these days?

Xu mang is stunned. He feels that the person in front of him is fooling himself. If his back can be angry, do you think everyone is called Beckhams? Are they the shadow of the world football?

"Who are you?" "Do you think I am a fool? How can the back be a fire? Without the embellishment of my beautiful face, isn't this in... Funny? "

Shan Guoyi:???

Huh?

This... This is a little different from Professor Xu's impression in the picture.

The real one seems to be... So what.

It's a bit of a bad word.

"Professor Xu?"

"You... Forgot to introduce me. I'm Shan Guoyi... And Professor Hua Yanfeng." Shan Guoyi seriously said: "although I am older than you, I am far less than you in academic aspects."

"Oh..."

"Old Dan!" Xu mang was very fond of this comrade Shan Guo. First of all, he was modest and much better than those European and American people. He said with a smile, "what is the situation? What's the fire behind you

"This... Allows me to sell a pass, and I will know later." Shan Guoyi smiles. After a moment, he says solemnly, "Professor Xu, what stage are you at now about the predicted particle - Axion?"

Xu mang thought for a while and said calmly, "the theoretical stage."

Although no progress has been made, he has to pretend to be unpredictable. However, Shan Guoyi is a veteran in the river and lake. He instantly knows that Xu mang has not made any achievements at present.

"Forty two years of prophecy, it will be so easy to handle." Shan Guoyi said seriously: "take your time, Professor Xu. With your attitude towards scientific research, I believe that miracles will happen in the near future."

Xu mang looks confused and looks at the departure of this single country comrade.

Can't you?

What's the situation?

Is it that the beauty of flourishing age not only burns single women, but also ignites greasy middle-aged men by the way?

"What's the situation?"

"I don't understand..."

for a long time,

when Xu mang returned to his apartment, he found that Xiaoman had already arrived, and there was no way... He had been delayed in the Research Institute for a long time.

"Ouch?"

"Xiao man is so diligent today?" Xu mang knew that he came back late. He quickly prepared the witticism he had thought of before and came to the kitchen with a little bad smile. He knew that as long as he gently hugged Xiaoman from the back and said a few words in her ear, she would collapse instantly.

When the time comes...

good is not a happy look.

Sure enough,

when Xu mang completed this set of actions, Xiaoman immediately surrendered, but he was also not striving for success... A move plus a few witty words, confused by this big idiot.

"Hum!"

"Well, I have a question. I hope you can answer it in person." Yang Xiaoman's Scarlet face squeaked and sobbed: "this problem is what I saw on the Internet. If I fell into the water with my mother-in-law at the same time, who would you save?"

"Can't swim!" Yang Xiaoman did not come up with a fatal condition.

Xu Mang: send the proposition!

It's absolutely a proposition!

According to the truth... If the daughter-in-law asks this question, she will surely save her daughter-in-law. If her mother asks this question, she will definitely save her mother. If two people ask this question at the same time, this situation will not happen basically.

However...

there is a bug in Xiaoman's speech, which is a language loophole.

"Save my mother!" Xu mang firmly said.

After saying this,

Yang Xiaoman was so angry that he exploded, but he could not attack. He was silent and his face was dark.

"What does it have to do with me that your colleague fell into the water?" Xu ran tiktok said: "I will see you brush your brains in the future."

Same as...

colleagues?

Yang Xiaoman recalled what he said just now. He and his mother-in-law...

at the same time?

Colleagues?

Xiaoman pinched Xu Mang's face and said helplessly, "well... I know I'm wrong. Can't you just put on your smelly face and laugh!"

In the twinkling of an eye,

Xu mang changed from passive to active.

After dinner,

after dinner, Xu mang sat in front of his computer and began to think about how to solve the current problems. Today, he was ashamed to say that he wanted to look for inspiration, but he found it and slept for a whole day. Fortunately, the environment at that time gave a lot of skill values, otherwise it would be a miserable day.

What is your inspiration?It seems that...

Xu mang gradually recalled the previous clips, and he felt that he was getting closer and closer to the truth.

Fermion!

Yes...

that's it!

Xu mang finally remembered what the previous flash point was, a kind of particle called fermion. In a system composed of identical particles, if only one particle is allowed in a quantum state of the system, this kind of particle is called fermion.

Of course,

what Xu mang is looking for is another magical thing.

Wilfermion!

A massless fermion.

Xu mang thinks that there is an inevitable relationship between the wilfermion and the Axion.

But at this time, he faced a greater challenge. It was no easier to find the werfermions than to find the axions. In 1929, according to the Dirac equation at zero mass, a pair of overlapping new particles with opposite chirality was described.

This kind of particle is called werfermion. Unfortunately, more than 80 years have passed, and we have not been able to observe it in experiments.

In this way,

werfermions are more difficult than axions, but they are not.

This particle can be solved from Dirac's equation, which has a very complete formula.

Unfortunately...

in order to detect werfermions, we need to find the wail Semimetals first.

"Lying trough!"

"Is it over? I just want to find the spindle. How come there are so many things all at once? " Xu Mang's head is about to blow up. An Axion predicted in 42 years will give birth to the werfermion of more than 80 years ago, and there is also a wail semi metal.

At this time,

Yang Xiaoman was sitting on the sofa, eating snacks and watching TV programs. Suddenly, he heard Xu Mang's complaint. Turning around, he saw the big idiot holding his head and his face full of pain. He was speechless for a moment.

Oh, my God!

This guy doesn't drive himself crazy, does he?

"Ah?"

"Don't scratch your hair... It's innocent." Yang Xiaoman put down the potato chips, went to Xu mang behind, rubbed his cheek, said gently: "don't worry... Everything slowly, one day can be solved."

"Oh..." Xu mang thought about the solution.

When two spin nondegenerate energy bands cross linearly near the Fermi level, the low-energy quasiparticle excited state behaves the same as that of the fermion, but... This also brings about a new problem. If there is a wail fermion state, many new physical phenomena will appear in the wail semimetal.

Well...

let's start from this aspect and construct the physical phenomena of werl Semimetals step by step.

Thinking of this,

Xu mangyi took off Xiaoman's mischievous hand and took out his mobile phone to call fan Zhilong.

"Hello?"

"Professor Fan!"

"I need your help. I'll see you in the condensed matter physics lab at 9:00 tomorrow morning."

Without giving fan any chance to speak, Xu mang hung up the phone directly, and then began to think about the physical properties of the weir semi metal, and made reasonable conjectures according to the theoretical prediction of the wail fermion state.

At this moment,

Yang Xiaoman is a little embarrassed. She feels that she is unnecessary in this family. Xu Mang's first wife is called physics, the second wife is called mathematics, the third wife's car is a Porsche, the fourth and fifth wife are two motorcycles, and the last six wife is herself.

No!

If his birthday gift custom version of Fengshen Chao ran away, would he not become the seventh wife?

"Hum!"

"Xu Shimei!"

Yang Xiaoman wrung Xu Mang's ear angrily, and said angrily, "there are Chen Shimei in ancient times, Xu Shimei in today's world, you scum man!"

Xu Mang:???

Oh?

What just happened?

How suddenly became a scum man?

Leave her alone!

According to the prediction theory, the following points can be basically determined: first, there are pairs of wail cones with opposite chirality in the physical band structure; second, there is an open Fermi surface on the crystal surface connecting the projections of the two exterior points.

This kind of Fermi surface is called Fermi arc...

the separation of different chiral fermions from each other will lead to peculiar chiral anomalous effect.

Basically,

if there is no accident,

these three situations are probably the "strange" physical phenomena of werl Semimetals.

According to these three characteristics, we can find the corresponding materials.At 9:30 p.m.

Xu mang has worked out the basic theoretical framework of Weil Semimetals, which is actually some results derived from the fermion states of Weil.

After taking a bath,

put on his pants, and Xu mang was about to go to bed when he found that the bedroom door was locked and knocked on the door in a hurry.

"Little man?"

"Open the door Xu mang shouts.

"Do you know it's wrong?" Yang Xiaoman said in a bad way.

"Ah?"

"Oh... I was wrong." At this time, Xu mang remembered his brother-in-law's words and admitted his mistake unconditionally in the face of his daughter-in-law.

Well...

it's time to count the time.

After a while,

the door opened,

Xu mang slipped in and, before Xiaoman had any reaction, went directly into the quilt.

It's safe!

"Little man?"

"Eh?"

"Why are you suddenly angry?" Xu mang asked curiously, "are relatives here?"

Yang Xiaoman gave a white eye and said, "Why are you so careful? Did you count other people's cycles every day before you knew me? "

Hearing these words, Xu mang suddenly felt a little bad,

over!

This is all over!

When a scholar meets a soldier, there is no reason for that.

This night,

spent the night in blood, tears and sweat.

The next day,

Xu Mang, carrying his satchel, walked slowly to the laboratory of condensed matter physics.

"Ah?"

"Professor fan is so early?" Xu mang put down his bag with a smile, drank soy milk and asked, "have you had breakfast?"

"Yes."

"What are you looking for me for?" Fan asked.

"Here you are

Xu mang threw out a printed manuscript from his satchel and said with a smile, "all the contents are on it."

Fan Zhilong was stunned for a moment, picked up the manuscript and opened it. In less than half a minute, his heart began to quicken and his breathing became rapid. His mind had been drained. Now, fan Zhilong was left with a shriveled body.

"This..."

"you..."

fan Zhilong raised his head and looked at Xu Mang in horror: "waier semi metal?"

......

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