Reborn Tech Scholar

Chapter 537 Particle Spin and Quantum Focus

The Quantum Physics Symposium of the Physics Society held at Zhejiang University is definitely the largest and best quality quantum physics seminar since the establishment of the Physics Society!
In the past, as an academic exchange meeting of the nature of a non-governmental society, it was very common in the domestic academic circle, and it is hard to say how much influence it had.After all, in the domestic academic field of physics, especially in the targeted field of quantum physics, the influence of the seminar is not up to the first-class level, because at that time there may not be a top physicist participating, and many participants are actually quantum physics majors. Postgraduate and doctoral students in mechanics, and associate professors and professors at a higher level, it is not bad to have a young outstanding student participate.

But this quantum physics seminar is different. Thanks to the influence of Qin Yuanqing's participation in the conference, most of the people who came to this conference were well-known professors from prestigious universities, generally Changjiang Scholars, Outstanding Young Scholars, and even academicians. Not surprisingly, many physicists are top physicists in the world and have made outstanding contributions in the microscopic and quantum fields.

There are thousands of physicists participating. As for those graduate students, doctoral students, lecturers, associate professors, etc., they don't have a seat in the auditorium and can only listen around, but they still have faces. They were full of excitement, after all, it was rare to participate in such a grand event, and they would be happy even to observe it.

Originally, only the local media would report, but this time, many national media sent reporters to the conference site to report.

The entire physics symposium will be held for three days. Three invited scholars will be arranged to give academic reports in the morning and afternoon. In the morning of the first day, except for the opening ceremony, only two scholars will be arranged to give academic reports.In the afternoon of the third day, there was a special academic report by Qin Yuanqing and the closing ceremony.

The reason for this arrangement is mainly because he was afraid that if Qin Yuanqing gave an academic report at the beginning, other scholars might find the later academic report boring and leave. As a result, the huge auditorium was empty, and that would be embarrassing. It must be super embarrassing.

Therefore, the Physics Society deliberately arranged Qin Yuanqing for the last academic report on the last day, and the entire afternoon belonged to Qin Yuanqing, which was enough for other scholars to have a collision of wisdom with Qin Yuanqing, and other scholars would definitely not be there before the last day of the seminar. leave.

The opening ceremony was very simple and not grand. The president of the Physics Society delivered a speech on stage, thanking all scholars for taking time out of their busy schedules to attend the meeting, and also thanking Zhejiang University for holding this quantum physics seminar and giving great support to the quantum physics seminar. Then it was read that the conference lasted for 3 days, the order of the conference venue, the process, etc., which represented the end of the opening ceremony.

The host began to invite the first guest to give an academic report. This guest is a first-level researcher at the Institute of High Energy Physics of the Chinese Academy of Sciences. He enjoys a high academic status in China. Years old, it can be said that the future is boundless.

The academic report given by this researcher named 'Hou Qingjie' is about the spin of particles!

Qin Yuanqing listened carefully to the academic report of 'Hou Qingjie' with great interest.

The discovery process of parity non-conservation, in simple terms, is that the spin direction of the particle is asymmetric when it is mirrored.

There are many kinds of particles in quantum physics, and 'spin' is a characteristic of particles, which refers to the intrinsic motion caused by the intrinsic angular momentum of the particle. Its operation rules are similar to the angular momentum of classical mechanics, and thus a magnetic field.

The nature of the two is completely different.

The spin of particles is a very popular direction in physics research.

For example, supersymmetry!
Particles with a half-integer spin are called fermions, which obey Fermi-Dirac statistics; particles with non-negative integer spins are called bosons, which obey Bose-Einstein statistics.

The research on the symmetry of fermions and bosons is the problem of supersymmetry, and it is also the basis of the demonstration of M theory.

"Yes, this Hou Qingjie is indeed the backbone of the Institute of High Energy Physics of the Chinese Academy of Sciences, and his academic level is indeed world-class!" Qin Yuanqing nodded slightly.

As a god-level existence with a full level of 15 in physics, Qin Yuanqing's attainments in physics are not covered. Qin Yuanqing can easily tell what a person's academic level is and whether he is just pretending.

When the host introduced Hou Qingjie just now, he said that Hou Qingjie graduated from Shuimu University with a bachelor’s degree, and then went to MIT to study high-energy physics. It took him four years to obtain a doctorate, and he worked at the MIT postdoctoral workstation for five years. , and then chose to return to China and joined the Institute of High Energy Physics, Chinese Academy of Sciences.

Speaking of which, this belonged to the Mizuki brick mover, and also the grandson of Mr. Yang!

Because Hou Qingjie's mentor is exactly one of Yang Lao's students!
With the end of Hou Qingjie's academic report, the participants in the venue gave Hou Qingjie warm applause, which represented the recognition of Hou Qingjie. Then, under the auspices of the host, they entered the issue of academic exchanges. Questions from his academic report.

The half-hour exchange session ended, and the host invited the second guest in the morning to give an academic work report.

The second invited guest is a first-level researcher at the Mizuki Institute for Advanced Study, named Zhao Cheng, who has more than ten years of overseas study experience, is committed to research in the quantum field, and has published theoretical physics achievements with world influence. A few years ago, he was selected as an outstanding youth, and he is expected to be selected as an academician before the age of 60.

The academic report he gave was some research and thinking about the ultimate nature of matter. It can be said that as soon as the topic of the academic report came out, it immediately attracted a lot of attention.

Today, the quest to understand the ultimate nature of matter has become the focus of major scientific research.Therefore, his academic reports remind people unconsciously of the crazy and miraculous days when quantum mechanics was created.

With the development of quantum physics, it is necessary to seek the quantum description of gravity. After half a century of hard work, it has been shown that the masterpiece of QED—the quantization program of electromagnetic field is invalid for the gravitational field.This problem is very serious because both general relativity and quantum mechanics must provide essentially compatible descriptions of the same event if they are to hold.There will be no contradictions in the world around us, because gravity is so weak relative to electricity that its quantum effects are negligible, and the classical description is perfect enough.But for systems with very strong gravitational forces, such as celestial bodies, there is no reliable way to predict their quantum behavior.

A century ago, our understanding of the physical world was empirical. In the 20th century, quantum mechanics gave us a theory of matter and fields that changed our world.Looking into the 21st century, quantum mechanics will continue to provide fundamental concepts and important tools for all sciences.However, compared with the brilliant achievements of quantum mechanics in the 20th century, the 21st century has undoubtedly paled in comparison. Many scholars believe that if we want to develop quantum physics in the 21st century, we must find a way to thoroughly predict the basic elements of matter. attributes, rather than relying on basic experience.

For example, some scholars are studying wormholes between different regions of time and space. This is not an invention of science fiction writers, but has a scientific basis, but so far no complete theory and proof of actual existence have been found.

Listening to Zhao Cheng's academic report, Qin Yuanqing was very emotional. Sure enough, the economy determined the superstructure. China was poor in the past, and there was no money to invest in scientific research. Academic researchers lived a miserable life. It is hard to find how many scholars can persist in their own research and make great achievements.

But now that we are rich, the country’s annual scientific research funding is increasing year by year, which enables more and more scholars to engage in their favorite fields, to concentrate on research, and have enough funds for academic exchanges, so many research results In fact, it is a world-leading achievement, and the level of scholars is also increasing at a speed that can be discerned by the naked eye.

For example, the scientific research focus of quantum physics belongs to the most cutting-edge research field of quantum physics. In the past, Huaxia must have watched people running from a distance, worried that they would be left behind and could not see them, but now, Huaxia belongs to the world's first echelon.

At the same time, it can be seen that the echelon construction of Huaxia's research field is very healthy. As the older generation ages and leaves, the Mesozoic generation picks up one by one, and their level is higher than that of their predecessors.

Qin Yuanqing is sometimes very proud of his compatriots. Perhaps because the material level has improved and there is no such a difficult environment as before, everyone's ability to endure hardships and stand hard work may not be as good as that of his predecessors, but everyone has one thing in common, that is, for the greatness of China Resurrection and advance one after another, even if it is a sacrifice, I am not satisfied!

And this not only exists in the academic field, but is also common in the military. He couldn't help but think of Xu Ruhai, who was once decided by him to be the guest of honor at Mizuki's graduation ceremony, a 2012 student who joined the army after military training. At that time, he sacrificed heroically. He never took a step back until the time of sacrifice, and used his own blood and life to fulfill the promise he made.

He also remembered that Wang Ying, a 2011 undergraduate graduate who was invited in the same session, worked as a poverty alleviation cadre in Sichuan and Sichuan. In the ravine.

Similarly, Ke Wenliang, a 2012 undergraduate graduate, returned to his hometown as a poverty alleviation cadre to return to his hometown. He was only 30 years old but became sick from overwork and sacrificed on his job.

In addition, such as a paper transfer order, resolutely chose to say goodbye to the comfortable working environment and reluctant family members, and went to the desert to engage in controlled nuclear fusion researchers. The Golden Crow Project' achieved great success in the first phase.

Qin Yuanqing fell into deep thoughts. At some point, there was warm applause in the auditorium. Qin Yuanqing recovered from his thoughts and realized that Zhao Cheng had finished his academic report and was entering the communication session.

At the end of the half-hour communication session, the host announced that this morning was officially over, and then all scholars, please follow the volunteers to the cafeteria for dinner.

Scholars walked in twos and threes, chatting about the two academic reports in the morning.

"Hou Qingjie's academic report gave me a lot of inspiration. I didn't expect that the spin of particles can be understood in this way. No wonder he was selected as a young scholar."

"Some of Zhao Cheng's thoughts are also very interesting. This trip is really worthwhile. I really look forward to Academician Qin's academic report."

"I am also looking forward to it. The last time I listened to Professor Qin's class, I have benefited a lot so far!"

"If every quantum physics seminar has this level, I will definitely attend every time. The previous seminars, what the hell, are not even as good as university lectures."

"."

Under the guidance of volunteers, Qin Yuanqing came to the cafeteria. At this time, there were already students eating in the cafeteria. Qin Yuanqing took the plates and waited in line.

"Great Demon King, you stand in front!" The students in front of Qin Yuanqing were shocked and tried to get out of the way.

What a joke, a big man like Qin Yuanqing actually queues up for food, doesn't it make him feel uneasy about eating, doesn't it make him lose his life.

"It's okay, just line up, don't panic! Hold on!" Qin Yuan said with a light smile.

It was not the first time for him to eat in the cafeteria. When he was at Shuimu University, he was a frequent visitor to the cafeteria, and queuing up to eat was normal.

"Great Demon King, can you sign for me?" The little girl said timidly.

"Yes!" Qin Yuanqing did not refuse, and signed his name on the little girl's pink notebook.

"Oye!" the little girl exclaimed excitedly.

You must know that young people are very envious of Yang Qian, not because she scored the first Olympic gold medal in the Olympic Games, nor because she is a Mizuki college student, but because she got the first autograph and blessing from Qin Yuanqing, and since then she has been tainted with the blessing of Wenqu Xing, and her life is great. for change.He has won one gold medal after another in the competition field, and his studies have not been affected. He finished his undergraduate studies as an outstanding graduate of Mizuki, and entered the postgraduate stage of Mizuki with his head held high. Now he is preparing for the Paris Olympics.

So many people want to get Qin Yuanqing's autograph, thinking that it is like a talisman, Wenquxing's body protection, so that some people on the Internet pay high prices just to get Qin Yuanqing's autograph.

Let's see how many people travel to Qin Yuanqing's hometown every year. It's not because the parents bring their children, hoping that their children will have some literary luck and better academic performance.

For the education of children, parents can give everything!
Qin Yuanqing smiled, he is really a child who has not grown up, this group of post-00s is really a group of lovely children, with distinctive personalities and full of creativity.

Although there are some voices criticizing the post-00s children in the society, Qin Yuanqing still believes that post-00s who enjoy better education and a better environment must be better than their predecessors. Sooner or later, they will prove that what is the Yangtze River wave push Qianlang, Qianlang died on the beach!
For those born in the 90s, they never had access to mobile phones but to computers when they were young.But for the post-00s, when they are sensible, mobile phones are very popular, and computers are also very common. If they are a little older, they are already playing with smartphones and ipads, and they will have better creativity.

(End of this chapter)