Rebirth of Northern Technology

In March 1994, the official version of Linux was released.

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School starts soon after the Spring Festival, and the campus is full of hustle and bustle.

With the improvement of scientific research conditions, results continue to emerge. What greeted the returning teachers and students was the news that a large number of papers were published.

Not everyone is celebrating, the physics graduate students are in a gloomy mood. As soon as they came back, they were assigned an extremely difficult task.

"How is it? Is there any progress?"

Professor Wang Wenfang brought together young people who were bitter and hated.

"I can't talk about progress at all. In the past two weeks, I just went through string theory and established some concepts."

Faced with a large number of mathematical formulas, everyone's heads are big.

String theory is developed on the basis of mathematical theory. There are countless high-level mathematics involved.

For example, if the sum of all natural numbers, 1+2+3+4+..., is added to infinity, its result is actually a negative number, -112. Can anyone believe this?

As the ultimate theory of physical roots, the mathematical ability required for string theory is daunting. This is also the real reason why string theory gradually declined in the end.

Physics is a discipline developed from experiments. String theory obviously violates this consensus.

When string theory first entered the campus, physicists engaged in particle physics, field theory, and condensed matter simply refused to teach string theory in the name of a physics class. If you want to teach, this is a math class, not a physics class! .

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"There are too many dimensions here, right?"

The most troublesome aspect of string theory is its multidimensionality. When string theory first appeared, in order to balance the photon energy formula, the 25-dimensional concept was actually proposed.

Multidimensional space is nothing new to physics people. For example, general relativity is a four-dimensional space. On this basis, German mathematical physicist Theodore Karuza added a fifth dimension. The rewritten equation can unify "electromagnetic force" and "gravity" into the same equation.

But in any case, 25 dimensions are a bit too much.

Fortunately, superstring theory puts forward the concept of hyperspace. The strings of superstring theory not only vibrate in the D-dimensional direction of ordinary space, but also vibrate in the direction of the Grassmann number coordinates of hyperspace.

Every normal latitude has its own associated dimension (space) of Grassmann number. The total dimension of the space is reduced from 25 dimensions to 9 dimensions.

But the 9 dimensions of ordinary space are 27 dimensions in hyperspace! Coupled with the additional time dimension, the actual dimension of superstring theory has reached 28 dimensions.

In the eyes of those who are new to string theory, it is purely a smorgasbord of theories that cannot be justified.

"Not much. This paper mentioned the concept of 11-dimensional space."

Copies of several papers were thrown on the table. The 11-dimensional concept was mentioned in the paper on the relationship between string theory and supergravity field theory.

M theory is also an 11-dimensional concept. It includes the normal 9-dimensional space, a time dimension, and an additional dimension. In terms of hyperspace, the effective dimension has reached 29 dimensions!

"Why do you want to study purely theoretical things? These theories should not talk about unifying others, even they have split themselves."

Several students who are not very good in mathematics are very dissatisfied with this task.

A superstring theory is already difficult, and now there are 5 versions!

Cheng Yongxing patted his **** and left, leaving behind a lot of unsolved mysteries. In particular, his insistence on editing sci-fi movies has even become a laughing stock among professionals.

Science fiction movies are so attractive because they are unbelievable and unexpected. If everything in the movie is more real, in addition to science fiction films, there are fantasy, gods and monsters, and martial arts films. Shouldn't those things be taken out and studied?

Just let the director students publish physics papers, and it saves everyone going around.

"It can't be regarded as a complete conjecture. Science does not believe in accident!

String theory can explain some things, and there must be reasons for it. Take a look at these articles. I think what Xiaocheng said makes sense. The dice have 6 sides. "

Professor Wang has read string theory through for more than a month and has gained some insights.

Many physicists have discovered that seemingly different theories can be unified through two mathematical transformations called S duality and T duality.

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"We suspect that he left the subject to us because he simply couldn't figure out these complicated calculation formulas."

Seeing that there is new information appearing, everyone can only continue to complain.

Recently, every time I met, there was a lot of stuff to read. Physics graduate students are too difficult.

But they guessed it right. The mathematical knowledge involved in string theory is indeed beyond Cheng Yongxing's level and ability. This time he dared not make the mistake of the curvature formula again. It was important to publish the results first.

A few papers do not matter, but occupying the commanding heights of the industry and mastering the right to speak are crucial. In a period of time, there has been no such good opportunity.

"Once this idea can be proved, the result will be a breakthrough. And Xiaocheng's idea has never been missed, you have to be a little confident!"

Professor Wang continued to cheer up young people who were afraid of difficulties.

Although Cheng Yongxing had studied basic physics with her for less than a year, and she had repeatedly skipped classes, Wang Wenfang always regarded him as a disciple.

Since this disciple was born, apart from repeated emotional frustrations, he has basically done nothing to lose.

With the continuous expansion of the scale and influence of the optoelectronic business, more and more people and organizations pay attention to Cheng Yongxing.

In this era, everyone is crossing the river by feeling the stones. Anyone who can make some achievements will attract countless people to summarize for him, hoping to find some successful experiences that can be replicated.

In this era, masters of the mouth are rampant. Qigong masters, great ideas, are endless.

Among this group of so-called capable people, Cheng Yongxing looks extremely alien. When other people are being promoted, it is often when they are going downhill.

Although Cheng Yongxing no longer writes thesis, his influence is still expanding day by day. In the eyes of those who care, through the magnification of several funds, the speed at which he produces results is actually faster.

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"Okay. Let's study and study again. I'm afraid I'm afraid, and in the end, nothing will be gained by hitting the bamboo basket."

The many anti-common-sense mathematical theories involved in string theory have also created a lot of resistance. People who engage in physics generally believe that seeing is believing. String theory is not only invisible, but it also goes against common sense.

But the situation is better than people. Since you can't resist, you can only try to learn to enjoy it.

"Relax! Even if there is nothing in the end, it is guaranteed that you will not regret it."

Professor Wang has a big deal, and he has paid great dividends.

"How to say?"

"At least your allocation, there is no problem."

The allocation of science majors has always been a difficult problem. Although it is a planned distribution at this time, the results of the distribution are very poor. Students and parents can only show their own abilities and find their own way, even graduate students are no exception.

"Is there any good news?"

The ears in the room were pricked up.

"In 1994, Optoelectronics will open up to recruit physics graduates. They will need as many as we have. Needless to say about the benefits of Optoelectronics."

The development of college students in the Department of Optoelectronics is obvious to all. Whether it is full-color or colorful, those in power are their own. There is nothing wrong with addressing the teacher directly when meeting. Quancai plans to go to the United States to build a new production line, and there are plenty of job opportunities abroad.

One step to heaven, one step to hell!

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"Really? But why do they want physics students?"

The good news came too suddenly, and some people were skeptical.

"Are you a physics professional? Why can't we do semiconductors? How many different courses are there between semiconductors and physics majors?"

This is a big deal and I have to fight!

But he got the point.

The courses of semiconductor majors are the same as those of physics majors until the junior year. The Department of Semiconductors at Lin University was simply separated from the Department of Physics.

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All competition, in the final analysis, is human competition.

The continuous success of TSMC has a lot to do with more than 80% of their employees with a master's degree. This unimaginable high education ratio has put TSMC on top of the foundry industry.

With the large-scale entry of Lin Wafer and Ducai into the semiconductor industry, the talent shortage that Quancai once faced has also appeared in the wafer industry.

The depth and breadth of talent demand in the wafer industry is unprecedented.

It is an impossible task to catch up with the world's advanced level based on the domestic talents and the stock of talents.

Ordinary fab operators are required to start at least as an undergraduate!

But this is not even possible in China.

From downstream chip design to upstream semiconductor equipment and semiconductor materials, this is an entire industry taking off!

The leap development of the semiconductor industry requires high-quality personnel in units of 100,000.

For this reason, optoelectronics is not only for physics, but also for science majors such as chemistry and mathematics.

The professional settings of Chinese universities have not changed with the market. Over the past few decades, hundreds of thousands or hundreds of thousands of science students have settled down in this way.

In China at this time, I can find thousands of semiconductor graduates, but I can’t find them, but there is no pressure at all to find hundreds of thousands of physics majors!

Regardless of the stock, it is the new increase, regardless of whether it is a science university, engineering university or a comprehensive university, physics is a must.

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"Xiao Cheng is also our physics professional!"

Someone patted the thigh. Post-doctorate learning is also learning.

"Yup!"

"correct!"

The **** decides the head, science knows no borders, but scientists have borders.

"Whatever you say, you have to cheer for yourself!"

"What do you mean by cheering? String theory is right. We just proved it."

No matter how unreasonable things are, they are all reasonable now!

"Yep!"

For a time, the atmosphere in the conference room was great.

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The basic skills of the University of Technology are still excellent. After the change of mentality, the once-sky moat quickly became a smooth road.

In many research projects, the success of things often depends on persistence.

The persistence depends on belief.

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