On the morning of February 13, "Tsinghua University" WeChat WeChat official account released a message: China * * * party member, theoretical physicist, physics educator, and retired professor of physics department in Tsinghua University, died on February 1 1 2023 at the age of 98.
Tsinghua University introduced that Zhang Li is the oldest teacher in Tsinghua campus. His teaching experience is the same as that of the Republic. I still remember the story that he was still teaching at the age of 95, which touched countless people.
According to CCTV reports, Zhang Li/Kloc-0 was born in Tianjin in 1925, graduated from Fu Jen Catholic University with the first place in the Faculty of Science in 1946, and/Kloc-0 returned to China to teach in the Physics Department of Beiyang University for the first time in 1949, giving up the opportunity of free postgraduate study in Cornell University.
From 1957, Zhang Li worked in Tsinghua University and participated in the creation of department of engineering physics. He used to be the director, deputy director and director of the teaching and research group of nuclear physics in department of engineering physics, and 1982 became the first director of the Department of Physics.
From 1957 to work in Tsinghua, Zhang Li talked about various courses, most of which he didn't learn and needed to study again.
"I have benefited a lot from this kind of learning. With the expansion of physical contact, I love and even fear physics more and more. " Zhang Li said before his death that it was through constant teaching and learning that he became more and more aware of the profundity and interest of physics and the greatness of physics and physicists.
As for why he is keen on teaching, Zhang Li's answer is: "I want to pass on my love for physics to students, so that they can also love physics." Speaking of students, Zhang Li can't help getting excited. He said, "It is my greatest comfort to see so many students in various positions in the country for so many years, and many people have become the backbone of important fields. This is the meaning of my life. "
In the spring semester of 2020, influenced by the COVID-19 epidemic, Zhang Li began to challenge online teaching. He and Mr. Hu Jiazhong jointly set up the online class "Frontier Topics of Quantum Mechanics". For Zhang Li, this is a "fresh start" after more than 70 years of teaching.
Not only in teaching, but also in scientific research. I have been engaged in physics teaching and scientific research for a long time, and I still insist on my work after retirement. In 1950s, he published a research paper entitled "Steady State and Annihilation Transition of Electron-Positron System", which was internationally recognized as the basic document of positron annihilation spectroscopy.
At the same time, Zhang Li has made original achievements in macroscopic quantum phenomena, Bose-Einstein condensation theory and perturbation quantum chromodynamics method.
In 2009, at the age of 84, he published a paper in Physics Review Express as the first author, and undertook the compilation of Tsinghua Physics Series. 20 13 also won the Zhou Peiyuan Prize in Physics from the Chinese Physical Society for proposing a new method of spinor calculus in field theory.