I really don't want to lie down and win

"gentlemen."

"You spent a total of four hundred and fifteen."

"To make it up, how about four hundred?" Xu Mang asked.

"I'm really sorry, sir... I really can't round it up, how about I give you a [-]% discount?" The young waiter took out the computer and pressed it: "Multiple four hundred and fifteen times zero Nine is equal to three hundred and seven..."

"Accidental?"

"You don't need to report it to me. The total is 370, three and fifty cents."

"I'll sweep you."

...

The next day,

Xu Mang came to his office. The chairs were not warm yet, but there was a hasty knock on the office door.

"Professor Xu!"

"Something went wrong... Someone announced the research results of the Klein tunneling phenomenon before us!" A young researcher hurried out and said from Xu Mang: "The quantum quantum under the Fermi experiment Institute, published a paper."

"They found evidence of Klein tunneling in graphene." The young researcher said, "And it was posted on arXiv. What's more...their paper is on your head."

what?

This is unfortunate...

Even when encountering things that are preempted by others, they usually preempt others by themselves.

"Ugh..."

"I often walk by the river, so I don't get my shoes wet." Xu Mang said calmly, "Isn't it true that a handsome man like me is conquered by a violent airport less than 1.5 meters tall? ?”

"There was no reaction in China, but it exploded abroad!" The researcher said: "After all, someone defeated you for the first time, and they are very excited now."

"..."

"Crazy..." Xu Mang said angrily, "What's that treatise called?"

"Called direct evidence of Klein tunneling."

Xu Mang nodded, opened the arXiv website, and saw the article as expected.

at this time,

The researcher was looking at Xu Mang nervously, but only 3 minutes later, he heard Xu Mang snort coldly.

......

Chapter 785 This Needs Additional Money (1/3)

Xu Mang suddenly felt a little helpless. Perhaps the worry was unnecessary. Although the Quantum Research Institute under Fermilab successfully proved the Klein tunneling phenomenon using graphene, the evidence was still insufficient. If this evidence was used to explain Klein's tunneling, regardless of whether other people can accept it, he will never pass it.

As reported by the Quantum Institute under Fermilab, they investigated the tunneling properties of strained graphene monolayers driven by a perpendicularly acting magnetic field, given the transmittance across a magnetic barrier by the transfer matrix.

It is found that in small-angle scattering, unlike Klein tunneling in an electric barrier, a magnetic field can trap electrons in a strained magnetic barrier, and the presence of strain can significantly increase directional transmission as long as the incident energy is not too large. Rate.

When the injected energy is large, the effect of strain is completely removed, so that strained graphene and ideal graphene have almost the same tunneling properties.

In general,

This is the tunneling property of graphene in a magnetic field under stress.

Sorry,

I cannot accept such evidence!

Xu Mang was full of disdain for this, obviously... This is a manifestation of eagerness for quick success. It is estimated that knowing his existence accelerated the speed of research, which led to such a problem, and there was a lack of definitive evidence.

"Professor Xu?"

"Do you have any good ideas?" said the young graduate student cautiously. "Physicists in the Western world are happy about this now. They think that in the field of physics, you are no longer the one who keeps Undefeated, now you can be defeated."

Xu Mang froze for a moment, then asked curiously: "This...does this mean that you can defeat me? Isn't it the tunneling properties of graphene in a magnetic field under stress... What's the big deal, no matter what others want I don’t want to admit it, anyway, I don’t admit that this evidence proves Klein tunneling.”

"But..." the young graduate student said: "The whole world thinks so, and we haven't even found suitable materials so far, so it's too difficult to surpass."

"Who said that?"

"I don't agree!" Xu Mang said seriously, "Isn't it just to find a suitable topological insulator material, just kidding... There is never such a thing as a difficulty in my dictionary, just close and open your eyes!"

"..."

Hearing Xu Mang's words, the young graduate student smiled wryly. No one can brag about being awesome, but only Professor Xu Mang can. It's a little overblown.

"Cough cough!"

"Professor Xu Mang, how sure are you?" the graduate student asked cautiously.

"grasp?"

"120 percent." Xu Mang said calmly, "Go back now, and tell them by the way, don't have any worries, I'm here for everything... Don't be afraid, let's talk about the research report on the mechanism of super-large black holes, How's the impact?"

"The impact is extraordinary."

"It has passed Nature Astronomy." The graduate student said excitedly: "We don't know why it happened so quickly, maybe it's because of you, but... a few of us have been on the school's homepage."

"Oh..."

"Keep working hard!" Xu Mang said casually, then turned on the computer, and continued, "Help me close the door when I go out."

moment,

Xu Mang was the only one left in the office. He was not at ease now. People all over the world who opposed him were having a carnival, and suitable topological insulator materials were nowhere in sight. What should we do?

Xu Mang fell into silence. According to the research of the previous two days, basically this topological insulator material is a hybrid material, that is, the interior is an insulator, but the surface is metallic, and under certain conditions, the surface can be transformed into a superconducting material.

This greatly increased the difficulty. At first, samarium hexaboride was chosen as the material, because samarium hexaboride meets the conditions that the interior is an insulator, but the surface is a metal, and the surface allows electrons to move freely, while the direction of electron movement is locked in on an intrinsic quantum property called spin.

However, its surface does not have the conditions to realize the Klein tunnel. Either a new topological insulator material is selected, or the samarium hexaboride material is specially processed. Each choice is very difficult, and it is almost a desperate situation with no turning back.

but...

Xu Mang was more inclined to the second option, which was to perform special processing on the samarium hexaboride material.

"Samarium hexaboride...how the hell can it be transformed into a superconducting material?" Xu Mang couldn't think of a solution. It is simply not something that humans can solve. It is difficult to turn a topological insulator material into a superconducting material. It's no less than a short, flat and shriveled Xiaoman turning into a tall and curvy Xiaoman.