Li Kangping returned to New York and continued to write The Principle of Electron Spin and Incompatibility.

Pauli in the previous generation proposed that the electron has a duality, which is actually to give the electron a fourth degree of freedom.

The fourth degree of freedom plus the principle of incompatibility is already able to explain the periodic table satisfactorily.

However, what exactly the physical meaning of duality and the fourth degree of freedom is, even Pauli himself cannot tell.

A two- or three-year-long debate ensued, in which physicists such as Kroenig, Uhlenbeck, and Gosmitt accepted one part of Pauli's doctrine and lashed out at another.

To be reasonable, Pauli's 1924 theory of electron spin and incompatibility does have loopholes, and it is reasonable for physicists such as Kroenig, Uhlenbeck, and Gausmit to attack these loopholes.

Eventually, Pauli accepted the advice of his academic opponents and refined his doctrine to incorporate the electron spin into the system of quantum mechanics.

Three people played a key role in this academic battle: Lorenz, Albert Einstein, and Bohr's subordinates at the Copenhagen Institute. Thomas.

Li Kangping's "Electron Spin and Incompatibility Principle" now absorbs the essence of Pauli's theory, discards the immature part of Pauli's theory at that time, and incorporates the academic ideas of Kronig, Uhlenbeck, and Gosmit.

Therefore, Li Kangping's version of "The Principle of Electron Spin and Incompatibility" is long, but it should not cause too fierce academic doubts and disputes.

In addition, the head of physics and academic decision-makers Lorenz and Albert Einstein maintained a good friendship with Li Kangping, and the paper "The Principle of Electron Spin and Incompatibility", Li Kangping wrote the German version, and he hoped to publish it in Europe.

It was late at night, and Li Kangping's academic task today was completed as planned, and he called: "Hi, good evening, Kate, is Jennifer here?" I'm Dr. Lee. ”

"Good evening, Dr. Lee, your Jennifer, she's taking a shower...... Wait, she's out. ”

Kate is Jennifer's roommate, Li Kangping has never met Kate, he knows there is such a roommate.

"Mr. Li, it's so late, what's the matter?" Jennifer asked on the phone.

Li Kangping said: "Jennifer, you arranged for me to meet with Mr. Sommerfeld tomorrow, this should be the last time I meet him in the United States?" He was about to return to Germany. I thank you for the right gift for Mr. Sommerfeld? But what about Madame Sommerfeld's gift? ”

"President, you didn't say you were going to prepare a gift for Madame Sommerfeld! Did you say that? ”

"Jennifer? I'm telling you now? Prepare a gift for Mrs. Sommerfeld. Otherwise, Mr. Sommerfeld would think that I did not understand the most basic etiquette. You know? I value my friendship with Mr. Sommerfeld very much, and I do not want to be an impudent person in Mr. Sommerfeld's heart. ”

"Okay? So do it. President? What would you like to give to Madame Sommerfeld? ”

"After some time with Mr. Sommerfeld, I learned that his wife was a musician, so I wanted Sommerfeld's gift to be a record of the best musicians. However? Do the best musicians seem to be German or Austrian? As far as I know, there are no very famous classical musicians in the United States? Have it? ”

"But there are very good jazz musicians in the United States."

"That's just going to give American jazz records. What is it if you buy a Beethoven, Brahms or Mozart record in the United States and give it to Mrs. Sommerfeld? ”

"President, why do I think you're disappointed in American jazz? You don't think American jazz is elegant! ”

"Is there one? Didn't you? ”

"President? Then give the gift of high art, such as Mr. May's theatrical records. ”

"Which Mr. May?"

"Mr. Mei Lanfang? He is the master of your Chinese drama! President, you don't know this Mr. Mei, right? ”

"Of course I know Mr. May. Jennifer? Can I buy Mr. May's record in the United States? ”

"I saw it at a store near Broadway last week, but there weren't many of them? Hopefully it's not sold out yet. ”

"Jennifer? Am I ashamed? You seem to know more about Chinese art than I do. ”

"You know, I got an A in my drama class, and you're a physicist who flies through formulas and numbers."

"Jennifer, you go and buy Mr. May's records tomorrow morning, and buy one of each of Mr. May's records, and multiply it by two, and give half to Madame Sommerfeld, and the other half for myself. If you can't buy Mr. May's records, you can use American jazz records as an alternative. ”

"Okay, I'll do it tomorrow as soon as I open my eyes. President, are there any other orders? ”

"No, good night. Also, Jennifer, I'm thankful to have you, and I appreciate everything you've done for me. ”

"We're here to help, good night."

In East Harlem's apartment, Kate laughed and said, "Oh, Jennifer, dear, you're in love, you're in love with your president." ”

Jennifer shouted, "No! ”

"Jennifer, we're all women, you can't fool me, and you can't fool yourself. At the Fifth Avenue TV show that day, I met your Mr. Li with my own eyes, and he is a nice man. The most important thing is that he is rich. ”

"Kate, are you finished?"

"Jennifer, it's not easy for women like us to survive in New York, you look at those girls from the south and the middle, they dress themselves up in a flamboyant and charming way, and their only mission in New York is to go to all kinds of balls, parties, and meet all kinds of men, old, young, handsome, ugly. What are they trying to do? The picture is the golden beetle's son-in-law! ”

"I'm not them, I'm a good girl." Jennifer said stubbornly.

"Please, is a girl who marries a rich man a bad woman?" Kate said, "Jennifer, do you care that Dr. Li is Chinese?" I mean, you don't care what country Dr. Lee is from, but you care what your family or friends think? What I want to say is, in the face of love, is this a problem? And, if Dr. Lee marries you, he's immediately a U.S. citizen. Marry him, my dear! ”

He ...... He ...... that day He ...... that day You know, Kate, he wants to do that with me. ”

"Go to bed, huh? Then let's go! ”

"Kate, I can't...... You know, I can't do that until I'm married......"

"Oh my God, Jennifer, it's 1923, how can there still be a stupid woman like you in America! Did I tell you that I did it several times with a couple of men in the car, and when I did, I realized, damn it, poor boys pretending to be rich people! The car was borrowed, the ivory cane was borrowed, and even their dresses were rented! If I can do this, Jennifer, why can't you? Do you really think you're Joan of Arc? Wake up, Jennifer, be pragmatic and recognize the current state of this society! For the sake of love, for the sake of your truly happy life in the future, I implore you to be brave! ”

……

A new day has arrived. Before meeting Sommerfeld, Li Kangping took a moment to learn about Chinese art.

Mr. Mei Lanfang has gone abroad, he has performed in Japan and Southeast Asia many times in recent years, and he is an international theater artist.

In Li Kangping's memory, Mr. Mei performed Peking Opera on Broadway in New York and caused a sensation. But not this year.

At this time, only a small number of Mei Lanfang's theatrical records flowed into the United States, and Jennifer got Mr. Mei's records.

In the afternoon, Li Kangping met with Sommerfeld.

When the two first met, Sommerfeld gave him his academic monograph as a gift to Li Kangping.

This meeting was a parting, and Li Kangping presented him with a pen and a record as a gift.