Chapter 268 Each other’s blessings


Chapter 268 Mutual Blessings

Ye Haotian and Lu Yunxiang stared directly at Zhang Wei, clearly saying that you can't ignore this matter.

Zhang Wei looked at the autistic person who had fallen into isolation and sighed helplessly. Among the four people in the dormitory, Lu Yunxiang is rich, Ye Haotian is powerful, and has cheats of his own, but only autistic people, who have no money, no power, no cheats, and some have Asperger syndrome.

This is such an opportunity to care for the disabled, who can I help if I don’t help him!

“Okay, why don’t I take care of this matter?” Zhang Wei nodded.

"Then how are you going to help Chen Ming? There is still one semester until graduation. How about you go to Professor Fang, the dean of the physics department, to intercede and find Chen Ming a graduate tutor who has a project? Professor Fang will definitely give you face!" Ye Haotian asked.

"Professor Du has accepted Chen Ming. It is not appropriate to change the instructor at this time." Zhang Wei said.

"That's right. The quota for graduate students is already very tight, and there are even fewer allocated to each professor. Professor Du used one quota for Chen Ming. If Chen Ming is in Professor Du's position, it would be the most difficult. If I take the initiative to change my tutor, I will really not be able to survive in the physics department in the future," Ye Haotian said.

"Otherwise, let's spend some money to sponsor Professor Du's project. As long as Professor Du's project can continue, Brother Jinbin will have something to do." Lu Yunxiang said.

"As long as your brother specimen is an associate professor, there is nothing wrong with absorbing scientific research funds from the society, but he is just a graduate student! If the graduate student gets the funds by himself, you are setting him on the fire! He You can’t wear such a big hat on such a big head!” Zhang Wei replied.

"Then what good idea do you have?" Ye Haotian asked.

“Let’s first figure out what scientific research project Professor Du Jiahai was killed for!”

Zhang Wei walked over to the autistic man and said, “Tell me in detail. Well, what project is Professor Du applying for?"

The autistic man still stared at the wall and murmured: "In the field of condensed matter physics, quantum Hall effect."

"Brother, how about I explain to you what the Hall effect is?" Lu Yunxiang hurriedly came forward.

"No, you're explaining it. I'm afraid I won't understand what you're explaining. Chen Ming, you'd better explain it to me!"

"In 1879, American physicist Edwin Hall It was found in the experiment that if a conductor carrying a current carries a magnetic field perpendicular to the direction of the current, the trajectory of the electrons will be deflected due to the Lorentz force, while in a conductor perpendicular to the direction of the current and magnetic field A voltage is generated at both ends. This electromagnetic transport phenomenon is called the Hall effect." The autistic man answered like a machine.

"In other words, Professor Du wants to study the quantum Hall effect?" Zhang Wei then asked.

Besides, Ye Haotian continued to add: "Since the 1980s, the quantum Hall effect has been a highly focused project in condensed matter physics research, and two Nobel Prizes have been published in this research field. The Bell Prize was awarded.

The integer quantum Hall effect was discovered in 1980, and he won the Nobel Prize in Physics in 1985; the fractional quantum Hall effect was discovered in 1982, and he won the Nobel Prize in Physics in 1998. "< br>


"You have done a good job in your homework! It seems that you have worked hard to set up a trap for me." Zhang Wei paused and then asked:

"Since you have taken two A Nobel Prize, this must be a popular research project. Professor Du still wants to do research in this area, so the research direction he envisions must be unique?”

“Professor Du wants to do it. Research on the quantum anomalous Hall effect." The autistic man paused and continued, "I just said that Hall discovered the Hall effect. Later, Hall discovered in his observations that Hall can be observed without adding an external magnetic field. Effect. This Hall effect in zero magnetic field is the "anomalous Hall effect". "Is this unique? The quantum Hall effect won the Nobel Prize in 1985. How is it possible that no one has studied the quantum anomalous Hall effect for more than 20 years?" Zhang Wei asked curiously.

“Of course there are people who have studied the quantum Hall effect. After the quantum Hall effect won the Nobel Prize, physicists proposed various research plans, but for more than 20 years, no results have been achieved. The most recently proposed theory is Professor Zhang Shousheng of Stanford University predicted that there would be a quantum anomalous Hall effect in two-dimensional topological insulators, but it was not confirmed," explained Autistic Man.

Zhang Wei nodded suddenly: "Zhang Shousheng? I have heard of this name. Professor Yang Zhenning's student seems to be the youngest tenured professor at Stanford University! Since it is the theory he proposed, it should have a scientific basis."< br>
Professor Zhang Shousheng was born in China. In the year when the college entrance examination was resumed, he was directly admitted to the Department of Physics of Fudan University without having attended a single day of high school. He can be said to be a genius among geniuses.

When he was sixteen, Fudan University sent him to study in Germany. Later he went to the State University of New York at Stony Brook, where Professor Yang Zhenning was also teaching, so he became Professor Yang’s disciple.

Later he was appreciated by Steven Chu and went to teach at Stanford University. At the age of thirty-three, he became the youngest tenured professor at Stanford University and was elected as an academician of the American Academy of Sciences.

Whether it is academic ability or qualifications, Professor Zhang is considered a leader among Chinese scholars in the United States. Many physics experts believe that it is only a matter of time before he wins the Nobel Prize.

But unfortunately, Professor Zhang finally lost to time. In 2018, at the age of 55, he was found dead at home. The US official finally gave the reason as suicide due to depression.

On the same day that Professor Zhang passed away, another very coincidental thing happened. Vancouver Airport unreasonably detained a woman who was transferring flights there. Some people linked Professor Zhang's death to this incident, which led to many conspiracy theories.

Whether there is any hidden reason or not, Professor Zhang’s death is a huge loss to the physics community. The age of 55 is the golden age for a world-leading scholar who studies physics. This is the perfect moment for him to combine his knowledge, experience and energy, allowing him to lead several teams at the same time and produce scientific research results in batches.

Professor Zhang Shousheng is a quasi-Nobel Prize-level scholar. He will definitely not talk nonsense in academic aspects. The research direction proposed must have a theoretical basis, so Professor Du from Tsinghua University wants to do the quantum anomalous Hall effect. The subject seems reasonable.

Zhang Wei thought for a moment, and then asked: "You just said that the anomalous Hall effect, that is, the Hall effect can be observed in a zero magnetic field environment, which means that Professor Du's topic is Intended to verify the possibility of quantum Hall effect under zero magnetic field.”

"Yes." The autistic man nodded.

“If quantum can also produce the Hall effect under zero magnetic field, then there will be many materials that can be used in electronic devices, and electronic devices can also achieve high-speed conduction and low energy consumption!” Zhang Wei immediately thought of the application level.

“I don’t understand the application!” The autistic man shook his head.

Ye Haotian said: "I understand! The high-speed conduction and low energy consumption of electronic devices, even if the effect is improved by only 1%, is earth-shattering, not to mention that this improvement is definitely more than 1% ! "

"So this project is definitely worth doing! If it succeeds, it may lead to an electrical revolution!" Zhang Wei said.

"Then why was it killed? The people responsible for reviewing the project applications are all experts, so they can't see the significance of this project, right?" Lu Yunxiang asked.

“Perhaps it’s because this subject is too big!” Zhang Wei sighed and continued: “For a subject of this level, the large investment is only one aspect. The key is that it takes a relatively long time to conduct research. , can the results be produced.

For some projects, the first few phases of funding can be given first. Once the preliminary scientific research results are obtained, it will at least prove that the scientific research direction is correct, and it will be easier to apply for subsequent funds. With the follow-up funds, the entire project was completed.

But this project is different. There are so many kinds of quantum materials and there are so many ways to process the materials. Who knows which processing method to use? Which kind of quantum material can be used to discover the quantum anomalous Hall effect? ​​

It is impossible to produce preliminary scientific research results with the help of previous scientific research funds. Once there are results, it will be We have achieved success in one step, so we need to provide long-term financial support even if there are no results.”

"As long as it takes, just take it longer! It's not like there are people who are engaged in scientific research who only study one topic in their whole life. Since this project is meaningful, no matter how long it takes, it should be carried out." Young Master Lu said with a pout.

“But the problem is, we don’t know whether the quantum anomalous Hall effect really exists. At present, this is just an idea of ​​scientists. If it does not exist, then all the investment will be in vain!” Ye Haotian opened his mouth to explain.

Zhang Wei's expression was much calmer. As a reborn person, he knew that the quantum anomalous Hall effect must exist. He can redeem these papers from the devil at any time.

The problem now is, how to help autistic people? We can’t really let autistic people work as laboratory coolies for a semester!

"Devil, prepare that paper on the Hall effect of graphene for me!"...

In the Department of Physics, Professor Du Jiahai sat alone in his office with an expression of "I want to be quiet".

There was a knock on the door, and Professor Du Jiahai looked at the door irritably.

"Didn't you tell the teaching assistant not to disturb me? Why are you here again!" Du Jiahai frowned and said reluctantly: "Please come in!"

I saw only a young man The young man opened the door and came in. It was Zhang Wei.

"Are you, Teacher Zhang Wei?" Professor Du was slightly startled and immediately stood up to greet him.

Professor Du had been working at the Chinese Academy of Sciences before and came to Tsinghua University to teach two years ago. At that time, Zhang Wei had already finished working on graphene and went to the Department of Biology. Therefore, Professor Du and Zhang Wei did not have much interaction. At most, they knew each other and nodded when they met, without even speaking to each other.

"Professor Du, I came uninvited, so I didn't bother you!" Zhang Wei said this, but he didn't apologize at all. Instead, he sat down directly as if he didn't regard himself as an outsider. on the sofa.

Seeing how familiar Zhang Wei was, Professor Du had no choice but to walk to the water dispenser, pour tea for Zhang Wei, and start greeting him.

After the two exchanged a few words, Zhang Wei explained his purpose: "Professor Du, I heard that you plan to do a project on the quantum anomalous Hall effect?"

"Hey, the topic was applied for, but it was rejected! I am worried about this matter now! At this time, if there is no new topic applied for, I will have nothing to do next year!" Professor Du said. .

“I heard that this year’s funding for the Department of Physics will be tilted toward astrophysics? In fact, this is also my fault. If I hadn’t discovered the asteroid, it wouldn’t be like this.” Zhang Wei said with a smile. .

"How can I blame you! Whoever produces results should be given resources. This is a matter of course. I have been doing scientific research for so many years, so I understand this!"

"It seems that Du Jiahai did not blame me for the demise of the project, but he is a reasonable person. This person can handle it!"

Zhang Wei thought to himself, and then said: "Professor Du, I heard You said that when you were at the Chinese Academy of Sciences, your main research directions were surface physics, low-dimensional nanostructures, and the controlled growth and quantum effects of thin films. Recently, I have also become interested in the Hall effect of nanostructures and wanted to start a topic. Let’s ask Professor Du for some advice.”

Zhang Wei said, took out a project plan from his schoolbag and handed it to Du Jiahai.

Du Jiahai took the proposal and looked at the title, his expression suddenly froze: "You want to study the graphene Hall effect?"

"Yes! Do you think this topic is feasible? ?”

“It’s feasible! Of course it’s feasible!” Du Jiahai concluded without even reading the content.

Graphene, as a new material, has proven that its physical properties are very outstanding, and its future application fields will definitely be broad. Studying the Hall effect of graphene will help discover new properties and new applications of graphene. further expand its application potential.

What's more, the person in front of me is the person who discovered graphene. His determined research direction is still wrong?

People are the authority, and they have to say they are right even if they are wrong!

Zhang Weize continued; "But, I am not in the physics department now. I need people and no equipment, and I have no equipment. In addition, I have classes all day long in the economics department, and there are not that many. Time to do experiments.

So I want to cooperate with Professor Du. Didn’t you apply for a project on the quantum anomalous Hall effect? ​​I want to add my project to your project. Bian just helped me do the experiment, so I can save some worries."

"Are you serious?" Du Jiahai didn't expect that such a pie would fall on him.

My project on the quantum anomalous Hall effect requires a lot of investment and takes a long time, so it may not be successful. It is normal for the superiors to not approve it. Even Du Jiahai himself has given up and plans to change the subject.

But it’s different with Zhang Wei. This guy is the best in Tsinghua University and has produced several world-class scientific research results. The subject he applied for was 100% approved!

Even if the departments responsible for funding don’t give money, President Gu will definitely use Tsinghua University’s small treasury to support Zhang Wei’s scientific research projects. It is no exaggeration to say that Principal Gu is not so kind to his own son!

If you include Zhang Wei’s topic in your topic, then you will not look at the monk’s face but the Buddha’s face, just because of Zhang Wei’s name, and your topic will be passed smoothly.

Isn’t this just a pie falling from the sky, falling on myself?

"Teacher Zhang Wei, thank you, thank you so much! Don't worry, when the time comes to apply for a project, you will be given priority, and when doing experiments, your project will also be given priority!

Also , If I produce scientific research results on the quantum anomalous Hall effect, I will definitely not forget your help on this topic!" Du Jiahai said quickly.

As long as he can successfully apply for project funding, Du Jiahai doesn't mind who takes the lead, and has even begun to hint that he will sign Zhang Wei's paper after the results are produced.

"Professor Du, you are too polite!" Zhang Wei smiled slightly and then said: "Actually, I also have a small request!"

"Please tell me, as long as I can do it Yes, I will definitely not refuse!" Professor Du immediately replied.

"I hope that Chen Ming will be responsible for the subject of the graphene Hall effect." Zhang Wei said.

"Chen Ming?" Professor Du was startled, and then said: "Chen Ming's experimental ability is indeed very strong. Many doctoral students cannot compare with him, but there are some problems with him!"

Professor Du pointed to his head and continued: "I'm afraid I'll mess it up for you again. How about waiting for next semester and I find a new postdoctoral fellow to take charge of your project?"
< br>"Professor Du, don't you know! Chen Ming and I share a dormitory, and we have been roommates for four years! Even if you can't command him, I can command him!" Zhang Wei said with a smile. .

Professor Du nodded suddenly. He was also a smart man, and he immediately understood why Zhang Wei gave him such a big gift!

It turns out it was all for Chen Ming.

If it weren't for Chen Ming, Zhang Wei could have taken the project to Principal Gu. Principal Gu would have approved it instantly, and there was no need to come to Du Jiahai to become a franchisee.

As for why I am not in the physics department, I need people but no one, I need equipment but not equipment, I have to go to economics class but I don’t have time, these are all obviously excuses.

The inventor of graphene, if he wants to study the Hall effect of graphene, he can’t find anyone? I don’t know how many people rushed to kill me!

Will there be no equipment to use? It would be no problem to just give him the physics department laboratory!

As for economics courses, that is irrelevant. I’ve given you equipment worth tens of millions, and you still care about those few classes!

After thinking about this clearly, Du Jiahai let out a long sigh, and then couldn't help but extend his thumb.

"Teacher Zhang Wei, you are so loyal. I am convinced by you now! Chen Ming is really blessed to have a roommate like you in his previous life!"

Zhang Wei Ze remembered that three years ago, probably during this season, an autistic man accompanied him, violated school rules, and sneaked into the laboratory of the Department of Electronic Engineering.

On that day, he obtained the graphene data and published a paper on graphene, which marked the peak of his life.

The scene three years ago seems like yesterday...

"Having a roommate like an autistic person is a blessing from my previous life!" Zhang Wei sighed softly.

(End of this chapter)

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