Tech Hammer

"Really, Tim, we are real friends, and we are not comparable to those people's plastic friendships. Apple's latest generation of mobile phone products use the solution provided by the platform for the high-frequency IC distribution, right? You can see the test results now, right? ? Just by adjusting the IC distribution structure, the natural heat dissipation capacity of the body can be increased by 8%, and the product working efficiency can be increased by 12%. Where can I get such a cheap solution? Isn’t this enough to explain the problem? "

"Yes, Ning, personally, I very much hope that everyone can reach this agreement. But the differences are serious now. As the head of Apple, I must consider the views of some partners, otherwise it will affect The integrity of Apple’s global supply chain is a very troublesome matter. The conditions you proposed this time are difficult to handle, and I don’t know if I can convince the board of directors.”

"Haha, Tim, so I like your candidness. Really, don't worry, it will take some time before Ningxin or 3D displays can achieve mass production. If you are really embarrassed, why don't you express any opinions and wait. See, that’s what I’m suggesting.”

"Ning, if you can really see the world as a whole, you will definitely choose to give some suggestions with appropriate concessions. I believe this will be beneficial to both the promotion of new technologies and Huawei itself."

"No, no, no, Mr. Cook, I have a different view from you on this point. No one will immediately change their attitude just because of a small temporary difficulty that they need to face. This will not gain any respect. Of course, our partners will Basic production and research and development will not be affected because these decisions are blocked at the strategic level. These are things they need to consider. At most, I am just a suggestion, not a request, so everyone's requests are based on their own circumstances."

"However, if possible, I still hope you can help me give a message to some people. It is not appropriate for me to say it directly. There is a saying in China that business cannot be done without benevolence and righteousness. If we cannot be friends, we can each do our own thing without interfering with each other. . But if this doesn’t work out and they come back with bad intentions, talk nonsense, and engage in public opinion wars, it won’t be fun.”

"We in China have just experienced the Sunshine News Rating System. I think this system is good and I hope it can be promoted to the outside world. Don't have that inexplicable illusion that your rules are superior to other rules. There is no need to pay any price. Really, maybe it was like this before, but it may not be like this in the future.”

"In addition, Tim, our chip technology will soon surpass yours. I'm not just talking about Ningxin One. In fact, the Ningxin series chips for mobile phones are already being designed. With the successful experience of Ningxin One, I believe that Ningsi Lab can achieve comprehensive transcendence within two years at most. Really, you know, I have always been humble."

"……Okay, bye."

"goodbye!"

…

There was no big surprise. In the end, the negotiations in Shen City failed to achieve any results, and the big bosses left China one after another.

This is understandable. Everyone is very busy. If they cannot reach an agreement within a period of time, these people will not be able to stay in China for a long time. That would be meaningless. Instead of continuing to waste time in China with resentment, it is better to go back and discuss countermeasures before this blue ocean has time to stir up.

It's just conceivable that the technical departments of these large companies may not be so easy for a while.

Facts have long proven that for all high-paying companies, there are still prerequisites for workers to be able to drink coffee leisurely while working. For example, like Google, which can earn tens of billions of dollars a month by providing advertising portals, of course Stable financial resources face the risk of being replaced, let alone reducing employee benefits. When it is time to lay off employees, there is a high probability that they will not be lenient.

This is probably the problem now.

Although the Yuan Universe has been booming in recent years, the speed of advancement can be seen by everyone. The entrance to the Internet is still in the hands of these technology giants. In other words, the good days of making money by just lying down have not passed yet. .

But now different solutions have been introduced. In the future era of three-dimensional display, there is a question mark as to whether the entrance can still be controlled by one's own hands. As for whether programmers and R\u0026D staff need to work overtime after returning, that is a matter of opinion.

Of course, Ning Wei doesn't care about this. On the contrary, after these people are gone, no one will bother him about messy things, which is good.

After a trip to the future city, his things piled up a lot.

The burden of chip research and development was temporarily relieved, and the cooperation with Director Chen of the Olympic opening ceremony was a pleasure. Negotiations with the other party did not go smoothly, which also required Ning Wei to spend some time understanding the progress of some other projects in the laboratory.

What's more important is learning.

As Ning Wei said before, even if a math master wants to turn to an unfamiliar field, he will often start by solving specific mathematical problems, that is, solving problems.

What Ning Wei has to do now is actually similar.

By researching papers and answering questions, he can supplement the knowledge he lacks.

However, Ning Wei obviously has an advantage that others do not have in this regard. His solid mathematical foundation, especially his understanding of various functions, allows him to solve problems with ease, such as wave functions.

Moreover, Ning Wei has a greater advantage than ordinary physics students when he starts learning quantum physics, that is, he has not systematically studied classical mechanics before.

Many people may object to defining this lack of foundation as an advantage, but Ning Wei feels that this is really one of his advantages, because when you start thinking about the problem, you will find that if you bring in the content of classical mechanics, Without a systematic knowledge base of classical mechanics, it is very easy to develop fixed thinking that interferes with the understanding of quantum issues.

For example, a very simple question, when the energy of the particle is lower than the height of the barrier and is in the barrier, is the kinetic energy of the particle negative?

In fact, this can also be explained as how to understand the problem of negative kinetic energy of particles inside the potential barrier when it penetrates the potential barrier.

This question is actually very deceptive, especially for students of physics. However, in the understanding of quantum mechanics, because the coordinate operator and the momentum operator are not commutative, the potential energy operator and the kinetic energy operator are also not commutative. , in other words, potential energy and kinetic energy cannot have definite values ​​at the same time. In this case, it is meaningless to discuss the statement that the energy of particles in a certain area is equal to the sum of kinetic energy and potential energy, which means that the question itself is meaningless.

The correct understanding is that when a particle is found within the potential barrier range, the kinetic energy of the particle is uncertain within a certain range according to the uncertainty relationship.

It feels very convoluted...

Another example is the simplest question, what is the energy level of the ground state hydrogen atom?

Many people can give a quick answer: -13.6eV.

However, understanding this issue is not as simple as a number.

13.6eV is a lot of energy for normal thermal motion, light and other factors. In classical mechanics, electrons will fall to the nucleus, but quantum mechanics not only prevents the electrons from falling, but also has a very large ground state energy, thus revealing the fundamental reason for the stability of hydrogen atoms.

Of course, this does not mean that classical mechanics is not important, because after in-depth study, many problems only require classical mechanics plus the uncertainty principle to derive images and results. Although the uncertainty principle provides a very broad scope of use of classical mechanics concepts. Strong restrictions, but this is an extremely trouble-free method after all.

To put it simply, just as many people on the Internet have misunderstood quantum mechanics - everything is uncertain. Quantum mechanics, to put it bluntly, is nothing more than macroscopic laws that everyone is exposed to every day and have become accustomed to. It is not the case at the microscopic level...

But if you really understand it, you will find that there are still laws under microscopic conditions, but these laws are not the same as the macroscopic laws. The addition of uncommon terms and symbols to distinguish it from classical physics casts a mysterious veil on these theoretical knowledge.

Let’s put it this way, if Ning Wei were to describe it, the rules of the real world that everyone comes into contact with have always been simple, rough, and direct. For example, as long as the fist is hard enough, it will definitely hurt when punched; when an apple is ripe, it will definitely fall to the ground. of……

But in the microscopic world, everything is hazy, just like a slim and graceful bride covered by a veil. Every move is filled with beauty and makes people intoxicated.

Well, that's probably it...

The more you are attracted to this beauty, the more you can't help but want to devote yourself wholeheartedly to it.

So now Ning Wei really feels like he was back in college when he was about to take exams, and there was never enough time.

It was the same day. While Ning Wei was studying a separable problem of quantum states based on the Bloch representation method based on density matrices in the office, he received a call from Tian Yanzhen.

Reluctantly putting down the pen and paper in his hand, Ning Wei looked at his own problem of proving the separability of the three-quantum system, and then answered the phone.

"Hey, Director Tian, ​​what's the matter?"

"I can't come to you if I have nothing to do?"

"Forehead……"

"Actually, it's nothing. I just want to inform you that Lao Pan is back. Didn't you say you wanted to meet someone last time? I made an appointment with him for dinner, will you come?"

"Go, this must go."

"Okay, I'll send you the address on WeChat, and you can come directly at six o'clock."

"Thank you very much, Director Tian."

"hehe!"

As soon as he finished speaking, the person on the other end hung up the phone...

How should I put it? The "haha" from the other side was very meaningful.

Coincidentally, Ning Weizheng was holding his mobile phone and realized what Tian Yanzhen's "haha" meant before hanging up the phone, and then began to reflect on whether he had done anything recently that made Director Tian feel unhappy. Office The door was suddenly pushed open, and his dear senior brother Lu rushed in directly.

"Senior Brother Lu, we agreed last time that we would knock on the door before coming in." Ning Wei muttered angrily.

Lu Dongyi was stunned, frowned and asked: "Have we talked about this matter? Besides, you are alone in the office for a long time, and you don't want to do anything shameful. Why do you always keep the door closed?"

Ning Wei looked at Lu Dongyi and suddenly realized that he couldn't answer this question.

Um……

Why is he closing the door?

Academician Ning, who could scold Fang Qiu in front of a group of big guys, was defeated in the end and asked: "Okay, Senior Brother Lu, what's the matter?"

Lu Dongyi immediately stepped forward enthusiastically, put a stack of documents in his hand on Ning Wei's desk, and said: "This is my latest research result. Please help me analyze it to see if there are any omissions. No." If so, I’m ready to hand over the topic. It’s what I discussed with you last time, about new aggregation operators and sorting methods for complex intuitive fuzzy sets of machines and their theoretical decision-making process.”

Ning Wei scratched his head and looked at the documents that were at least five centimeters thick. He suddenly felt a headache. On the other hand, Lu Dongyi was still talking: "This is the most important result after you persuaded me to change my direction to study the mathematical foundation of artificial intelligence." , if possible, next I would like to try to use this theory to construct a large mathematical model, oh, by the way, if you find any problems, please call me at any time, I will be on 24 hours a day."

Ning Wei immediately said: "Senior Brother Lu, congratulations. Since you think this problem has been solved, it must not be a big problem. I will take a closer look tomorrow."

"Tomorrow?" Lu Dongyi was stunned, frowning and said, "What are you busy with today? It's only five o'clock in the afternoon, there is still plenty of time."

Just as he was talking, Ning Wei's phone vibrated. He opened it and took a look. It was Tian Yanzhen who had sent him the place to eat tonight. At the Donglaishun hotpot restaurant, which is not too far from the school, Ning Wei took a deep breath, raised his phone, and said confidently: "Well, I really have something to do today. Director Tian asked me to go to Donglaishun to eat hotpot, why don't we go with Senior Brother Lu? go?"

Lu Dongyi looked at Ning Wei with even more confusion and asked, "Why does Director Tian treat you to hot pot for no reason? So do people really become bored when they get older?"

These words shocked Ning Wei again...

Really, I would rather argue with someone else, and tell him that as a tutor, inviting his most successful and beloved student to have a meal has nothing to do with boredom, but when faced with Lu Dongyi’s exceptionally pure With a look in his eyes, Ning Wei was defeated, but he asked in surprise: "Professor Lu, you are also a tutor. Don't tell me that you have never invited your students to dinner?"

Lu Dongyi thought for a moment and said, "Please, it's too late to discuss the topic. I will ask them to bring a few more buns, and then everyone will eat together."

"Really, Senior Brother Lu, those children did not know how many evil things they did in their last life, but they even passed your graduate school... Don't mention it. Today, Lao Tian invites Professor Pan from the Chinese Academy of Sciences to dinner, and by the way, I want to go... If so, I should be able to have a meal, just tell me whether you want to go or not?"

"Which Professor Pan? The one who does quantum information?"

"OK."

"Oh, what do you want to do? Why don't you tell me that you really don't want to do mathematics anymore, but you want to study physics?"

"OK."

"hehe……"