I Don’t Want to Win Lying Down
Chapter 539: Weyl Semimetal
Is your back on fire?
Is there still such an operation these years?
Xu Mang was stunned when he heard it. He felt that the person in front of him was fooling himself, and if his back could be hot...Do you think everyone is called Beckham? Are they all the "Shell Shadow" in World Football?
"Who are you?" Xu Mang said grimly, "Do you think I'm a fool? How could my back be hot? Without the embellishment of my prosperous beauty, isn't this... funny?"
Shan Guoyi:? ? ?
what?
This...this is a bit different from the impression of Professor Xu in the impression and the photo.
The real he seems to be...what about it.
This word is a bit bad.
"Professor Xu?"
"You...forgot to introduce me. I am Shan Guoyi... and Professor Hua Yanfeng." Shan Guoyi said seriously: "Don't think I am older than you, but I am far behind you in academic terms. "
"Oh..."
"Old single!" Xu Mang has a very good impression of this Shan Guo Yizhi. First of all, he is more modest, much better than those in Europe and America, and said with a smile: "What is the situation? What is the back?"
"This...Allow me to sell a pass, and I will know it later." Shan Guo smiled, and a moment later he said solemnly: "Professor Xu... Regarding the prophecy particle-Axion, what stage are you now at? ?"
Xu Mang thought for a while, and said calmly: "Theoretical stage."
Although no progress has been made, he has to pretend to be unpredictable, but... Shan Guoyi is an old dough stick in the rivers and lakes, and instantly knows that Xu Mang has not achieved any results.
"Forty-two years of prophecy, it will be so easy to handle." Shan Guoyi said seriously: "Professor Xu takes your time. With your attitude towards scientific research, I believe that miracles will happen in the near future. "
Xu Mang was confused and watched the Shan Guo Yizhi leave.
No way?
what's the situation?
Isn't it... Prosperity Beauty not only burns single women, but also ignites greasy middle-aged men?
"What's the situation?"
"No idea..."
for a long time,
When Xu Mang returned to the apartment, he found that Xiaoman had arrived long ago, and there was no way... he was delayed in the research institute for too long.
"Ouch?"
"Student Xiaoman is so diligent today?" Xu Mang knew that he was coming back late, and hurriedly prepared the witticism he had thought before, and came to the kitchen with a smirk. He knew that as long as he gently hugged Xiaoman from behind, Say a few words in her ear and she will instantly weaken.
By the time...
It's not so happy.
as predicted,
When Xu Mang completed this set of actions, Xiaoman surrendered in an instant, and he couldn't live up to it... an action plus a few witty words, he was confused by this big idiot.
"Humph!"
"By the way... I have a question, I hope you can answer it in person." Yang Xiaoman's blush little face, squeaky said: "This question is what I saw on the Internet, if I drop with my mother-in-law at the same time In the water, who will you save?"
"None can swim!" Yang Xiaoman didn't come out with a fatal condition.
Xu Mang: 囧
Send propositions!
This is absolutely a proposition!
According to the truth...If the wife asks this question, she will definitely save her. If the mother asks this question, then she will definitely save her. If two people ask this question at the same time, basically this will not happen.
but...
There is a bug in Xiaoman's rhetoric, which is a language loophole.
"Save my mother!" Xu Mang said firmly.
Words fall,
Yang Xiaoman was so angry that he exploded, but he couldn't attack, his face turned dark in silence.
"Your colleague fell into the water, what does it have to do with me?" Xu Mang said grimly: "In the future, stop using Douyin. I think your mind is silly."
with...
colleague?
Yang Xiaoman recalled what he said just now, and he and her mother-in-law...
Simultaneously?
colleague?
Xiaoman squeezed Xu Mang's face, and said helplessly: "Okay...I know it's wrong, can you not put your stinky face, hurry up... smile!"
In a blink of an eye,
Xu Mang went from passive to active.
Had dinner,
Xu Mang sat in front of his computer and began to think about how to solve the current problem. He was ashamed to say it today. He was going to find inspiration, but he slept for a day after finding it. Fortunately, the environment at that time gave a lot of skills. Value, otherwise this day will suffer a miserable loss.
By the way...
What is the inspiration for yourself?
like...
Xu Mang gradually recalled the previous episodes, and he felt that he was getting closer and closer to the truth.
Fermions!
Correct...
That's it!
Xu Mang finally remembered what the shining spot was before, a kind of particle called fermion. In a system composed of identical particles, if only one particle is allowed to be accommodated in a quantum state of the system, this The species is called fermions.
of course,
What Xu Mang was looking for was another kind of artifact.
Weyl Fermion!
A qualityless fermion.
Xu Mang felt...There is an inevitable connection between Weyl Fermion and Axion.
But at this time he was faced with even greater challenges. Finding Weil fermions was no easier than finding axons. Weil fermions were in 1929. When the mass is zero, the Dirac equation describes a pair of overlaps. Of new particles with opposite chirality.
This kind of particle is called Weil fermion, but unfortunately... more than 80 years have passed, humans have not been able to observe Weil fermion in experiments.
So it seems,
Weyl fermions are more difficult than axons, but in fact they are not.
This kind of particle can be solved according to the Dirac equation, which has a very complete formula.
unfortunately...
Detecting Weil fermions requires finding Weil semimetal first.
"Fuck!"
"Is it over? It's just like finding an axe. Why do so many things appear all at once?" Xu Mang's head is about to explode. An axe predicted for 42 years has derived 80. Weil fermions many years ago, there is also a Weil 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. When he turned his head, he saw this idiot holding his head with a painful expression on his face. Speechless.
God!
Isn't this guy driving himself crazy?
"Ugh?"
"Don't scratch your hair... The hair is innocent." Yang Xiaoman put down the potato chips, walked behind Xu Mang, rubbed his cheek, and said softly: "Don't worry...Come slowly. It can be solved one day."
"Oh..." Xu Mang thought about the solution.
Weyl semi-metal materials...
When two non-degenerate spin bands are required to linearly cross near the Fermi level, the excited state of the low-energy quasiparticle is consistent with the behavior of the Weyl fermion, but... this also brings a whole new problem. Since the Fermion state exists, many new physical phenomena must appear in the Weyl semimetal.
Ok...
Then start with this aspect, step by step to construct the physical phenomenon of Weir semimetal.
Thought of this,
Xu Mang patted Xiaoman's troublesome hand, took out his cell phone and called Fan Zhilong.
"Hey?"
"Professor Fan!"
"I need your help, tomorrow morning at nine o'clock... see you in the condensed matter physics laboratory."
Without giving Fan Zhilong any chance to speak, Xu Mang hung up the phone directly, and then began to think about the physical properties of Weyl semimetal, and made reasonable speculations based on the theoretical prediction-Weyl fermion state.
At this moment,
Yang Xiaoman is a little embarrassed. She feels that she is superfluous in this home. Xu Mang’s eldest wife is called physics, second wife is called mathematics, third wife is a Porsche, fourth and fifth wife is two motorcycles, and last sixth wife is. Yourself.
wrong!
If his birthday gift customized version of Fengshen Super broke down, wouldn't he become the seventh wife?
"Humph!"
"Xu Shimei!"
Yang Xiaoman twisted Xu Mang's ear angrily, and said angrily: "There was Chen Shimei in ancient times, and Xu Shimei today, you scumbag!"
Xu Mang:? ? ?
Ugh?
What happened just now?
How come you suddenly become a scumbag?
Regardless of her!
Xu Mang’s thoughts returned to the Weyl semimetal. According to the Weyl fermion state of the prediction theory, the following points can be basically determined. First, the Weyl cones with opposite chirality appear in pairs in the body energy band structure. 2. On the surface of the crystal, there is an open Fermi surface that connects the surface projections of two Weyl points.
This kind of Fermi surface is called a Fermi arc...
The three different chiral Weyl fermions are separated from each other, which can cause peculiar chiral anomalies.
basically,
If nothing happens,
These three situations are probably the ‘strange’ physics of Weyl’s semimetal.
Weil cone,
Fermi arc,
Chiral abnormalities...
According to these three characteristics, go find the corresponding materials.
At half past nine in the evening,
Xu Mang has fixed the basic theoretical framework of Weyl semimetal, which is actually the result of some deductions from Weyl fermion states.
After taking a shower,
Putting on his pants, Xu Mang was about to go to bed, but found that the bedroom door was locked, and hurriedly knocked on the door.
"Little Man?"
"Open the door!" Xu Mang shouted.
"Is it wrong?" Yang Xiaoman said irritably.
"what?"
"Oh... I was wrong." Xu Mang remembered the words of his cousin at this time, facing his daughter-in-law, just unconditionally admit his mistake.
Ugh...
It's time for relatives to count the time.
moment,
The door opened,
Xu Mang slipped in, and before Xiaoman could react, he got directly into the quilt.
It's safe!
"Little Man?"
"Uh?"
"By the way, why are you suddenly angry?" Xu Mang asked curiously, "Did relatives come?"
Yang Xiaoman gave a blank look, and said glutinously, "Why are you so careful? Did you count the cycle of others every day before you met me?"
Hearing these words, Xu Mang suddenly felt something wrong.
That's it!
This is all over!
Xiucai met the soldiers, and it was unreasonable.
This night,
Spent in blood and tears and sweat.
...
The next day,
Xu Mang walked slowly to the condensed matter physics laboratory with his bag on his back.
"Ugh?"
"Professor Fan is so early?" Xu Mang smiled and put down his bag~www.wuxiaspot.com~ drinking soy milk and asked: "Have you had breakfast?"
"have eaten."
"What the **** are you looking for me?" Fan Zhilong asked.
"give!"
Xu Mang threw out a promised manuscript from his bag and said with a smile, "All the content is on it."
Fan Zhilong was stunned for a moment. He picked up the manuscript and opened it. In less than half a minute, his heartbeat began to accelerate and his breathing became rapid. The thoughts in his brain have been drained. Now Fan Zhilong only has a shriveled one. Vice body.
"This..."
"you..."
Fan Zhilong raised his head and looked at Xu Mang in horror: "Wail half-metal?"
......
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