Shen Qi began to answer questions: "In quantum mechanics, the Schrödinger equation describes the motion of microscopic particles in a potential field. ”

The students shared the same hatred and emotion: "Yes, Schrödinger's demon, Laplace's demon, Maxwell's monster, the three nightmares of physics students!"

Shen Qi laughed: "Regarding Schrödinger's demons, I have summed up a set of demon subduing manuals, which are suitable for the undergraduate level of physics in our school, do you want to?"

The students were: "Yes!"

Shen Qi didn't have a lesson plan or prepare a PPT, he picked up chalk and wrote on the blackboard the essence of his years of physics research and teaching.

Very considerately, Shen Qi withdrew under the podium first, giving the students plenty of time to take pictures of the demon suppression book on the blackboard.

The mobile phones of various styles were held high, and the quick-thinking and intelligent students immediately realized that the treasure book given by Shen Qi was quite down-to-earth, and they started the recording program after taking the photos.

In fact, the solution of the Schrödinger equation can be summarized in one sentence, that is, the eigenvalue problem of the Hamiltonian operator. Shen Qi returned to the podium and knocked on the blackboard, knock knock.

Professor Shen knocked on the key points, and the students took the pen to record and brought the laptop to tap the keyboard.

Knock knock!

Shen Qi walked back and forth on the podium, knocking on a few key points, and his in-depth explanations benefited the students of the School of Physics a lot.

After Shen Qi answered the Schrödinger equation, he immediately solved the problem of Laplace and Maxwell, and the four-dimensional gradient electrodynamics of Laplace and Maxwell were very annoying.

The difficulties that rank after the three great masters of physics are the problem of enthalpy in thermodynamics and the problem of polarization of scattered light in optics.

The difficulty of mathematical physics methods lies in the processing skills of functional and variational, and this course and electrodynamics require high mathematical ability of students.

Some students also raised the problem of the energy level distribution of the delocalized subsystem and the corresponding number of microscopic states, and physical chemistry was their elective course.

Shen Qi has all the questions, and he is comfortable navigating between the various courses of the physics major.

From 8 a.m. to 9 p.m., the Q&A session lasted all day, and Shen Qi was well received by the students of the School of Physics.

"I understand, thank you Professor Shen for your advice!"

"Professor Shen, can you stay in our school for a while longer?"

"Ten days before we go back to the United States?"

"Professor Shen, can you work in our school for a long time in the future?"

"Professor Shen, you are a native of Nangang, and your hometown needs you!"

The undergraduates of Nangang University of Technology have not been in contact with Shen Qi for a long time, but they feel that Shen Qi has brought a new atmosphere, and they like this atmosphere.

The undergraduates are eighteen or nineteen years younger, and the older ones are twenty-one or twelve years old, and they are not a few years younger than Shen Qi.

Shen Qi exudes a kind of sharpness and affinity of scientific research elites in the new era, he has the strength and ability, double doctorate degrees in mathematics and physics, and his achievements are known to the world.

But Shen Qi doesn't put on a show or play in front of students, which is different from those students.

Students like this kind of professor who is high-minded and down-to-earth, and they jointly wrote to the dean of the School of Physics, Academician Shi Zhongqing: "Professor Shen's Q&A meeting, can you arrange another day?"

Academician Shi and several main persons in charge of the Academy of Physics observed Shen Qi's special Q&A meeting, and they felt a lot, not because the students did not work hard, but because those of us who were leaders did not do a good job, did not go deep into the grassroots to gain insight into the real needs of students, and solve the pain points of students to meet the needs of students.

"Students, Professor Shen is a very busy man, I can't arrange his schedule, you have to ask him. Academician Shi said.

"If one day is not enough, then come back for another day!" Shen Qi readily agreed to the student's request, and the old place will continue to answer questions tomorrow.

The next day, because there were so many students flocking to the school, the largest classroom at Nangang University of Technology could not accommodate it, and it was impossible to stand.

The school's academic affairs office has to take measures to limit the number of diversion, one student will be issued a number, a single number in the morning, a double number in the afternoon, and a number of English letters + Arabic numerals in the evening self-study time.

"Students, please show your student ID card to receive the admission number of Professor Shen's special Q&A session. The staff of the Academic Affairs Office who was guarding the door of the Q&A classroom asked.

A male student shows his student ID, a third-year student at the School of Mathematics of Nangang University of Technology.

The staff shook their heads after checking their student IDs: "Are you from the Faculty of Mathematics? ”

"Mathematics and physics are not separated!" argues with the math man.

"Classmate, don't embarrass me, you also saw it, it's overcrowded. The staff member pointed to the classroom.

"Professor Shen is a math student, I have the right to ask him for math problems!" the math man did not want to leave.

"But it's useless for you to go in, he only answers physics questions today, and these physics questions are collected in advance. ”

"Then can Professor Shen hold another math Q&A session?"

"I have to ask the leaders and Professor Shen himself, classmates, you go back first, please pay attention to the teaching information of our school at any time> mathematics man is leaving, this is unfair, the students who study mathematics can't even get Professor Shen's number."

"Students, thirty-six common questions and five special questions have all been answered, let's see you next semester, I wish you excellent exams and successful studies!" Shen Qi's second physics Q&A session ended in a more popular atmosphere.

The students of the Academy of Physics grabbed Shen Qi's arm and reluctantly let him go: "There are still physics experiment problems!"

"One-stop service?" Shen Qi still has a Hodge conjecture in the United States that has not been solved, otherwise he doesn't mind staying in Nangang for a few more months, after all, this is his hometown: "I have a suggestion, my physics Q&A in the past two days will be compiled into a handout, which will be printed by the Institute of Physics at that time, and everyone will have a copy, see the handouts as if they were me." As for the experimental question, are there any students who can't do physics experiments at the undergraduate level?"

At the end of Shen Qi's physics Q&A session at Nangang University of Technology, he kept his promise and wrote the "Lecture Notes on the Analysis of Physics Problems of Nangang University of Technology" overnight, which is dry goods and more or less a performance.

Although Nangang University of Technology has no hard performance indicators for Shen Qi, Shen Qi still completed the "Lecture Notes on the Analysis of Physics Problems of Nangang University of Technology" seriously and responsibly.

In just a few days, Shen Qi has become the hottest topic in the whole school of Nangang University of Technology.

The Institute of Physics and the school have conducted a deep reflection and summary, and the phenomenon of "Shen Qi's special Q&A" is the emergence of a hot topic of rave reviews because of his personal charm, or is the school's education system for undergraduates needs to be improved?