This may be the first time in Ye Hua's life to teach students, but he is at ease, in fact, this is similar to the introduction of products at the press conference, there are just some differences.

Ye Hua didn't tell these students too much too esoteric knowledge, that is what doctoral students should do, so as not to hit them too deeply, these knowledge points are really difficult, and you have to master more other knowledge to understand them.

"It doesn't matter if you don't understand it, I will study systematically in the future, so I should leave an impression today." Ye Hua listed a formula on the holographic screen, stared at the image and said: "Maxwell's equations describing the electromagnetic field are the first field theory in physics, he said that the fluctuation of the electromagnetic field will produce electromagnetic waves, and he also calculated the theoretical speed of electromagnetic waves, and then found that it was very close to the speed of light measured by people at that time, so he predicted that light is also an electromagnetic wave, look, this is a god-level person." ”

At that time, it caused an uproar in the physics community, which can be said to be very sensational, and today everyone knows about it, and ordinary people know it.

"In other words, light is also the result of the vibration of an electromagnetic field, what does that mean?" Ye Hua looked back at several students, they all listened to the teacher's lecture seriously, none of them deserted, Ye Hua was very satisfied with this, if someone deserted, he would be very angry, probably this is the teacher's "common problem", and he will always pay attention to this.

"Students can imagine that they are all playing their own brainstorming. What happens if you hold an electric charge and vibrate it up and down? Seeing them thinking, Ye Hua gave them a while before continuing:

"When you shake an electric charge, it's like you're holding a point on a calm surface of water and vibrating up and down, which causes ripples in the electromagnetic field."

"It's like a wave!" Li Zhengtao said.

"Yes!" Ye Hua nodded: "So what are the consequences?" Of course, electromagnetic waves are generated, and when the frequency of this electromagnetic wave falls within the range of visible light, visible light is generated. ”

Seeing that they continued to look at him, Ye Hua knew that they understood completely, otherwise they would have thought suspiciously.

Ye Hua called up a picture of a light bulb and said: "For example, this lamp, as soon as it is energized, the current will heat the filament, and the atoms and electrons in it will be disturbed as soon as it is heated, and this disturbance will provoke the fluctuation of the electromagnetic field, so that electromagnetic waves are generated, and the frequency of the electromagnetic wave falls in the visible light range, so visible light is generated, so that you can know why the light bulb will shine." ”

Speaking of this, Ye Hua once again called up a simulation diagram of the spin of a cosmic celestial binary star system: "In the same way, we can make an extension, and we can understand gravitational waves." Theoretically, if you take any object with mass, it will cause fluctuations in the gravitational field, but these fluctuations are so weak that they are almost nonexistent. But the mass of the cosmic celestial body is large enough, and the gravitational field fluctuations generated by the process of collapsing into a black hole will cause the entire space-time to deform like a wave, and of course observable gravitational waves will be generated, of course, even then with the help of professional instrument detection equipment. ”

Ye Hua paced:

Then draw inferences from one another, and then extend to the "hysteresis field theory", through the virtual transmission field generator will produce the fluctuation of the static field, and then through the specification of the boson transport interaction, that is, the so-called static quantum, what to call is not important, according to the classification of particles static quantum should belong to a new kind of boson. So students, even if you haven't studied quantum mechanics in depth, you should have heard of wave-particle duality, which means that matter is both a particle and a wave, in fact, it is also a field, no matter how you call it, the field is the particle, the particle is the field, and the field also has spin. ”

The young geniuses here gradually became confused, and there was no pressure to listen to them before, but now they gradually fell into autism.

Ye Hua looked at the expressions of several of them, the corners of his mouth raised slightly, and his gaze fell on Li Zhengtao: "If you want to become a physicist, an excellent physicist, you must master these knowledge in the future, including the 'Static Stasis Field Theory'. ”

"Then the static hysteresis field theory, which is established on the framework of the Yang-Mills gauge field + Higgs mechanism, naturally, can not avoid quantum mechanics, from the name we know that not only can not be avoided but also very critical, the paper introduces the quantum chromodynamics QCD theory to describe. As for the QCD theory, it is simply a standard kinetic theory that describes the strong interaction between quarks, which will be systematically studied in the future. ”

"In other words, the maintenance of the quark model, the static hysteresis field model will become an extremely important part of the standard model of particle physics in the future, so this is a compulsory course."

The eight Guanhua students present didn't know what Ye Hua's words meant, but if there were graduate students and graduate school entrance examiners present who heard it, most of them would be heartbroken, and they would definitely be full of Ye Hua's resentment, especially the particle physics students.

In the 20th century, the herd of bulls erected several mountains are more difficult to overturn than the other, and now another mountain has come out?

When you wake up, you have to master an additional knowledge point, and it's at the level of this heavenly book? What's even worse is that before mastering the "static hysteresis field theory", you have to master a lot of fairy-level knowledge points of the same level, quantum chromodynamics QCD theory is a gauge theory, and its gauge symmetry group is SU (3), so you also have to master the mathematical knowledge point "group theory" to understand the description of the quark model, as well as the Yang-Mills theory...... Wait a minute!

"So the question is, teacher, what is a field?" Lorantis Rose seemed to be upright, and blinked his eyes to look at Ye Hua, as if with a desire to learn.

Ye Hua coughed lightly, glanced at Lolandis, and said lightly:

"It's a bad question in itself, but it's a good question. Because of this, people in the 19th century came up with the concept of aether, mainly to concretize the field, and now we know that the proof is that the aether does not exist. Now we know that the field exists, and it is completely correct to describe the field mathematically, and it is also correct to prove it by experiments, and the field is indeed very useful, so when you encounter a problem and need to introduce the concept of the field, you only need to understand in your heart that there is a field here, which is enough. ”

Ye Hua didn't teach them further, it was too early for them to learn these knowledge points now, and it would be in vain to talk about it without any foreshadowing, even if the talent is far beyond ordinary people, it also needs a process of acceptance.

It's good to leave an impression on them, it is not easy to teach, educate, preach, and solve doubts, especially these young people, and guide them to grow up healthily.

Recruit them, not only to their academics, life, and growth, but also to their parents, like Ning Jie, a child from the Hexi Corridor in the northwest, thousands of miles away from Saibei's hometown.

And they are all in the adolescent stage, compared with the average college student, they are not yet able to live independently.

But having said that, Ye Hua didn't take care of them as if they were greenhouse flowers in the ivory tower, Xiao Liu was the life instructor in charge of the first class of students in Guanhua's class, and there was no school during this time, basically organizing them to carry out some sports and military training activities, outdoor activities, and mainly guiding their independence in life.

……