Chapter 674 The Encounter Between Two Gods

A few days later.

UC Berkeley.

Visitor reception.

Tick ​​bell——

Hearing the cheerful sound of the alarm clock beside the bed, Li Jingjun, who was still a little sleepy, suddenly opened his eyes.

snap——

He first reached out and pressed the button on the alarm clock. When silence returned to the room, he moved his body and leaned on the cushion at the head of the bed.

Li Jingjun, who just turned fifty this year, has never had very good sleep quality. After waking up every day, he was confused for a long time.

However, after noticing the time on the calendar next to the alarm clock, Li Jingjun's body suddenly shook slightly, and he suddenly woke up.

At this moment, a time is clearly displayed on the calendar:

Wednesday, October 28, xxx.

That is.

The day the journal Physical Review Letters is released!

So Li Jingjun quickly got out of bed, put on his clothes, washed up and left the room.

Students who have served as professors at the University of California, Berkeley, should all know this.

Although the visitor reception hall at Berkeley has the word "Hospitality" on it, it is actually a very high-end hotel - the kind with a revolving door.

To know.

At this time, revolving doors are not a common product of later generations. Although this thing was invented as early as the 19th century, early revolving doors did not have infrared sensing devices.

In other words, that type of revolving door will just keep rotating and it is impossible to tell whether there are guests coming in or out.

The revolving door of the guest house at Berkeley is equipped with microwave radar and infrared sensors. It is one of the landmark buildings built by Berkeley with a lot of money.

At the same time, because Berkeley is one of the largest gathering places for Chinese in the United States, the school also thoughtfully provided Chinese food and chopsticks. Although there were only a few dishes such as millet porridge and fried dough sticks, it was considered a certain level of care.

For example, when Li Jingjun was picking up his meal, he saw several third brothers complaining about the lack of curry and chickpeas, and they looked quite unconvinced.

Of course.

If Xu Yun could be present at this time, his feelings would probably be deeper.

after all

In the later life when he traveled back in time, the catering at the visitor reception hall at the University of Berkeley was completely opposite to what it is now - in addition to European and American breakfast, only Indian food was provided, and Chinese food was no longer available.

This can also reflect the ability of scientists studying in the United States during the two periods. Only if your ability is high enough will others respect you.

Then Li Jingjun made a bowl of millet porridge, an egg and a plate of peanuts, and chose a relatively quiet place to sit down and eat.

As a result, I just ate it a while ago.

A voice rang in Li Jingjun's ears:

"Brother Jingjun, good morning."

Li Jingjun turned his head and found Xiao Yang standing next to him holding a dinner plate, looking like he was ready to find a place to have breakfast.

Upon seeing this, Li Jingjun quickly put down his chopsticks, picked up the tablecloth and wiped his hands:

"Xiao Yang, are you awake too?"

Nowadays, Li Jingjun and Xiao Yang do not work at Berkeley, so they were temporarily arranged by Chen Shengshen to the reception center a few days ago.

As for Chen Shengshen, he lives in the school's staff community, which is more than 20 minutes' drive away.

Hearing Li Jingjun’s words.

Xiao Yang nodded politely:

"Well, I just woke up."

Li Jingjun asked him with a smile as he asked him to sit down:

"Xiao Yang, how are you? Did you sleep well yesterday?"

Xiao Yang showed a wry smile when he heard this, and tapped his dark circles with his index finger:

"Brother Jingjun, look at the dark circles under my eyes, they are almost as big as Gungun's. Do you think I can sleep well?"

Li Jingjun laughed twice.

Today is the day that "Physical Review Letters" is published. With the letter from the capital in front of me, it is impossible to say that I am not nervous.

He is actually similar to Xiao Yang, except that he is older than Xiao Yang, so the fatigue is not so obvious on his face.

Then Li Jingjun picked up a peanut, put it in his mouth, chewed it, and asked Xiao Yang:

"Xiao Yang, what time does "Physical Review Letters" usually publish today?"

Xiao Yang thought for a while and explained:

"The rule is that it is published at 12 noon on Wednesday, but this usually refers to retail hours."

"For institutions like Berkeley that order back journals, the journals will often be delivered to the journal mailroom earlier. Normally, you may receive them at nine or ten."

Li Jingjun nodded thoughtfully.

Although he is a top tycoon in biochemistry, most of the related fields are bimonthly publications. Weekly magazines with more accurate time really lack sufficient understanding and experience.

He thought he and Xiao Yang were going to a newsstand to spend money on papers today, and even prepared some change.

Of course.

He would definitely not tell Xiao Yang about such an embarrassing thing, and soon started eating porridge normally again.

More than ten minutes later.

Xiao Yang glanced at the empty plates in front of the two of them and said proactively:

"Brother Jingjun, how about we leave now?"

Li Jingjun picked up a piece of paper and wiped the corners of his mouth:

"no problem."

Then the two of them quickly came to the lobby of the guesthouse, which was also the entrance of the revolving door, and found the driver that Chen Xingshen had arranged for them in advance. Soon the car drove away from the guesthouse quickly.

Fifteen minutes later.

Swish——

The car stopped steadily outside a quiet three-story building.

Li Jingjun and Xiao Yang got off the car one after another.

Before the two of them had even landed on the ground, Chen's voice came from the small building:

"Brother Jingjun! Xiao Yang!"

Chen walked out of the small building with big strides, and stopped when he was beside the two of them:

"How is it, have you eaten?"

Li Jingjun and Xiao Yang smiled at each other, yes, it was another standard Chinese greeting

Then the three of them exchanged a few simple pleasantries, and Li Jingjun couldn't help but look inside the building and asked:

"Brother Shengshen, have the new journals arrived?"

Chen nodded, holding one person's hand and walking into the building:

"Well, a batch of new journals just arrived, but there are hundreds of them, and the staff in the mailroom are still sorting them now."

"But I have already told them that if they sort out the journal "Physical Review Letters", give it to me first."

As a core branch of the University of California, Berkeley basically has full funding subscriptions for papers.

Although most papers these days are published monthly or bimonthly, the number of journals after full subscription is too large.

In addition, some journals need to be ordered in large quantities at one time to be distributed to various colleges, so the mailroom has to handle hundreds or even more journals every day.

Most of these journals are packaged and processed in the San Francisco Bay Area, and then violently sorted all the way to the school like express delivery.

Of course.

If you really want to get the journals published on the same day as soon as possible, you can also ask someone to send them over a long distance by fax, but this operation usually can only be carried out after the official publication, and the time may not be much faster than sorting.

When the three people walked into the building where the mailroom was located, there were also seven or eight men and women of different ages standing in the aisle next to them.

"These are all lecturers or professors who came to pick up the journals."

Chen Shiing-Shen walked and quietly introduced the identities of other people in [encrypted Chinese]:

"The lady with long hair is called Wendy, an Italian music teacher. She ignored me last week after I made a pig blood pizza."

"The old man in white clothes is called Ben Yangming. You can tell he is a Gaul by his clothes."

After a while.

Chen Shengshen led the two to a foreign man in the corner and said to Li Jingjun and Xiao Yang in English:

"Brother Jingjun, Xiao Yang, let me introduce you, this is Mr. Steven Weinberg."

"Steven is a top student who graduated from Cornell University. He worked as a postdoctoral fellow at the University of California, Berkeley for two years and just became a lecturer at Berkeley last year."

"Steven, these two are my compatriots, Professor Li Jingjun and Professor Yang Zhenning."

Weinberg was originally reading a book quietly. He was stunned for two seconds when he heard the words, and then looked at Xiao Yang with great joy:

"Mr. Yang, it's really you! I've heard a lot about you!"

Xiao Yang shook hands with him happily, his expression was not unfamiliar but not enthusiastic.

After all, he had seen such scenes too many times after winning the Nobel Prize, and he had developed a basic normal heart.

Steven Weinberg.

Neither Xiao Yang nor Li Jingjun had heard of this name. Judging from his age, he was estimated to be close to 30 years old. He had just become a lecturer at Berkeley. To be honest, the probability of him having brilliant achievements in the future was not high.

After the two parties separated their hands.

Weinberg did not stop the idea of ​​communication, but took out a booklet and a pen from his body:

"Mr. Yang, can I talk to you about some issues of symmetry?"

Xiao Yang blinked:

"Symmetry?"

Weinberg nodded vigorously:

"Yes, especially some issues in the structural application of SU (2) × SU (2)."

This time.

Xiao Yang looked at Weinberg with some curiosity.

As we all know.

Although Xiao Yang and Xiao Li jointly won the Nobel Prize, the result of their Nobel Prize was the law of parity non-conservation in weak interactions.

So when ordinary people want to chat with Xiao Yang or get in touch with him, they usually talk about parity non-conservation.

But Weinberg is different.

He started talking about the structural application of SU(2)×SU(2), which involves the concept of another framework.

So Xiao Yang soon became interested and asked Weinberg:

"Mr. Steve, have you also studied the multiplication of SU(2)?"

Weinberg hummed excitedly again. He didn't expect that the question he was thinking about last week would be answered by the person involved:

"I have been studying the breaking of electroweak symmetry for some time. I found that according to your Yang-Mills framework, the scalar part of the Lagrangian will have two very strange charge ratios."

"Later, I followed the Gell-Mann-West relationship Y=2(QT3) in hadrons, where Y is hypercharge instead of weak hypercharge, and T3 is also the isospin of flavor symmetry SU(2) instead of weak isospin, but it still seems to be a little wrong."

Xiao Yang said "oh" and stretched out his hand to Weinberg:

"Can you show it to me?"

Weinberg quickly handed the small notebook to Xiao Yang.

Xiao Yang found a more secluded seat and sat down, and began to analyze with his legs crossed.

Chen Shengshen and Li Jingjun saw this, and their eyes flashed with some surprise.

As Xiao Yang's close friend, both Chen Shengshen and Li Jingjun have known Xiao Yang for more than ten years, and they know this good friend's personality inside out.

To be honest, they have seen Xiao Yang when he was serious, but at that time, Xiao Yang was sitting opposite basically the top physics masters in Europe and the United States.

This young man can arouse Xiao Yang's interest to this extent with just a few words. There is something going on.

"."

Just like that.

A few minutes passed.

Xiao Yang just put down his pen again, and a trace of solemnity flashed in his eyes:

"Strange. There are indeed two more charge ratios."

"If the conventional method is used, the Yukawa effect in the Lagrangian will cancel them out, but it is extremely obvious when calculated using the framework derived by Professor Mills and I. There should be something here."

Weinberg nodded in agreement.

This is a non-universal phenomenon, so there must be something undiscovered in some theoretical corner.

The only tricky part at present is how to determine the "identity" of this thing and how to clarify its physical meaning.

At the same time, compared to Weinberg, Xiao Yang has another hunch in his heart:

This may be an opportunity to complete the Yang-Mills framework!

The first version of the Yang-Mills framework derived by him and Mills has problems, which is something that the entire physics community knows very well.

The original purpose of Xiao Yang and Mills to construct this framework was just to supplement a gauge theory, which is a very natural mathematical extension.

Gauge theory existed in electrodynamics as early as the 19th century, but people did not pay enough attention to it and only regarded it as a mathematical technique.

So Xiao Yang himself has been trying to optimize this framework over the years. For example, he removed the redundant degrees of freedom of field variables last year and introduced the D'Alembert operator at the beginning of this year.

And the question raised by Weinberg at the moment may be another opportunity for optimization.

Thinking of this.

Xiao Yang slowly closed the notebook in front of him, went through the content that he had memorized in his mind, and then returned the notebook to Weinberg:

"Mr. Steve, the question you raised is very worth discussing. If possible, can you give me your contact information?"

Weinberg was stunned for two seconds, and then his eyes burst into an extremely excited light.

Mr. Yang. Actually asked me for my contact information?

Gulp——

Then Weinberg swallowed hard, turned to the last blank page in his notebook, and quickly wrote a few lines:

"Mr. Yang, this is my mailing address, and below is my telegram and fax number."

Xiao Yang took the paper again with a smile, folded it in half and put it in his chest pocket.

Then he opened his mouth, as if he wanted to say something:

"So."

But he didn't say anything.

The door of a room not far away was opened with a snap, and a black woman with curly hair poked her head out:

"Hello, gentlemen, "Physical Review Letters" has been found!"

Note:

The body temperature is 36.7, and the current problem is still the bitter mouth and back pain. I will try to adjust it within three days.