Li Kangping showed an appreciative look and said: "Professor Savi, I think that the high-energy electron diffraction experiment is also a direction to verify the theory of matter waves. I can't explain what happens in a high-energy environment right now, but I think high-energy electron diffraction experiments are possible. ”

Professor Woodgate lit a cigarette and said, "The high-energy electron diffraction experiment, oh, seems a bit off-topic. ”

"Maybe I'm going too far." Professor Savi no longer dwells on the high-energy electron diffraction experiments without a single stroke, and he returns to the topic: "Lee, the low-energy electron diffraction experiments you did are no problem, and the nature of the electron beam makes it an extremely important complement to X-rays in the study of the structure of matter. As far as this low-energy electron diffraction experiment you did is concerned, it was a success. I congratulate you. ”

The rest of the professors asked questions one after another, and Li Kangping answered them one by one.

"Experiments on Electron Diffraction of Nickel Crystals" is attached with a large amount of authentic experimental evidence, and these professors have seen copies of the paper in advance, and some professors have even gone to the Woodgate Laboratory to investigate in the field.

With the evidence in front of them, the professors in the defense team reached a high degree of unanimity, and they gave a high degree of affirmation to the nickel crystal being diffracted by electron diffraction experiments.

"Based on the views of the professors, allow me to summarize." "The electron diffraction of nickel crystals has two important values, first, it proves the waves of matter. Second, the experiment itself is a new experimental technique. Now that the matter wave has been proven to be true, there is a new set of discussions, and I don't think we can discuss these things clearly in this defense, I mean, what happens if the matter wave hypothesis is true? It is difficult to find an answer today. ”

"Let me focus on the experiment itself, the experiment of the diffraction of the nickel crystal by electrons, which is an impeccable experiment. As I said earlier, even if there is no matter wave hypothesis, the phenomenon of interference diffraction will occur when the electron beam touches the crystal, which is a new academic research method that expands our understanding of the nature of electrons. ”

"Mr. Li, please come back in ten minutes."

"Okay, I'll see you later."

Li Kangping politely left the conference room and gently closed the door.

Objectively speaking, Li Kangping admires these physics professors, they are all elites and fierce generals of Columbia University.

Professor Savi, who realized the academic value of the high-energy electron diffraction experiment--- was actually a scientific achievement made by G.P. Thomson in 1927.

Professor Green said that low-energy electron diffraction experiments provide a new experimental technique that will help us better understand the nature of electrons.

The low-energy electron diffraction experiment, which is actually LEED, played a huge role in the field of surface physics research--- which was around 1970.

At this time, Professor Green's understanding of LEED was limited, but it was remarkable that he was able to understand it to this extent. After all, the science of surface physics has not yet been born.

These professors are smart people who are concerned about physics today and looking forward to physics in the future. Their thinking ahead of time is not 50 years, but it is certainly greater than 5 months.

Ten minutes later, Li Kangping returned to the conference room and was greeted by a warm and smiling face.

"Mr. Li, the defense team has passed your doctoral defense. Congratulations! ”

"Thank you, Professor Green!"

"Mr. Li, congratulations!"

"Thank you, Professor Savi!"

……

Li Kangping shook hands with five professors, who signed his doctoral application.

Considering the review cycle of the Columbia University Degree Council and the preparation time for the doctoral graduation ceremony, Dr. Lee Joon's → Dr. Lee's promotion will probably be in August or September this year.

After the meeting, Professor Woodgate arranged a meal.

"Li, as you know, all the members of the defense team have signed your doctoral application, which means that the Academic Degree Council will definitely approve your doctoral application. Tell me, what do you plan to do when you get your PhD? Professor Woodgate asked.

Li Kangping cut a steak and forked it in his mouth, saying, "Recently, I think I will focus on the company's business. ”

Professor Woodgate was slightly disappointed: "Oh, it looks like we're going to lose a good physicist. So are we going to get a good businessman? It's hard to say. The facts tell us that some people are scientific geniuses, but they are business fools. Lee, you've proven that you're a scientific genius, so you're going to prove that you're also a business genius next? ”

"Professor, you know me very well, you know that I love physics, and I can't give up physics. My company is currently mainly in the mahjong business--- which may sound funny, but that's exactly what it is. Although my company started as a mahjong business, this is only for the present and does not represent the future. ”

"So the future of your company will be connected to physics?"

"I hope so, and I'll work in that direction."

"Li, you've been to Xidian, and you've seen that Xidian has gathered a large number of physicists--- to be exact, former physicists. They had engineering applications as their main goal, and they became brilliant engineers who helped us make the key parts for our electron diffraction experiments, and yes, I'm grateful to those engineers. Lee, my smartest Lee, once you get involved in the physics of the nature of engineering applications, you become an engineer. ”

The professor tried hard to persuade him that he wanted his most proud disciple to continue to shine in the field of academic research, not engineering development.

Is the matter wave project completely over?

The matter wave hypothesis was proven to be true, and then what?

Has Einstein's birefringence problem and transition problem been solved?

There are still many problems to be studied in the pure academic research of physics.

"My dearest Li, you are undoubtedly an academic research talent." Reiterating this point, the professor asked, "Do you really want to be like Marconi?" Of course, there's nothing wrong with being the next Marconi, and once you become the next Marconi, even the U.S. government has to pay for you. ”

During the period in Europe, the U.S. government requisitioned the American Marconi Radio Company. After the end of Europe, the U.S. government deceived and refused to return the U.S. Marconi Radio Company.

In 1919, the U.S. federal government, together with General Electric, AT, Westinghouse Electric and other companies, jointly established the Radio Corporation of America (RCA).

Immediately, RCA forcibly acquired the American Marconi Radio Company.

Today's RCA is the U.S. national team, which is extremely powerful and has a very deep background.

The U.S. government did pay for Marconi, but in the end, the pay evolved into buying you.

Li Kangping fully understood the professor's kindness, and he said, "Professor, you can allow me to be willful for once." Also, I don't want to be the next Marconi, I just want to be myself. ”