The law of parity non-conservation was put forward by Mr. Yang Zhenning, an outstanding Chinese American physicist.

1922 In September, Yang Zhenning was born in Hefei, Anhui. The Yang family was originally from Fengyang House and moved to Hefei in the early years of Guangxu. Father Yang Wuzhi is a teacher in a middle school in Anqing. Name the child "Zhenning". Anqing used to be called Huaining, and the word "Ning" of "Yang Zhenning" refers to Huaining. 1923, Yang Wuzhi passed the exam with excellent results in Anhui and got the opportunity to study in the United States at public expense.

1928, Yang Wuzhi returned to China after receiving his Ph.D. in mathematics from the University of Chicago, and was employed by Xiamen University. From 65438 to 0929, Yang Wuzhi became a professor in the Department of Mathematics of Tsinghua University, so Yang Zhenning went to Peiping with his parents. First, I studied in Zhicheng Middle School affiliated to Tsinghua Campus, and later I was promoted to Chongde Middle School, a nearby missionary school.

1937 In July, when Yang Zhenning was a freshman, War of Resistance against Japanese Aggression broke out. Yang Wuzhi moved south with the school and returned to his hometown of Hefei with his family. Yang Zhenning transferred to the sixth middle school in Anhui Province. Shortly after the fall of Nanking, Yang Wuzhi decided to go to Kunming, the home front. At that time, Southwest United University, which was formed by the merger of Tsinghua, Peking University and Nankai University, started school in Kunming and hired Yang Wuzhi as a professor of mathematics. Yang Zhenning and his father went to Kunming. /kloc-in the summer of 0/938, he was admitted to The National SouthWest Associated University with the same academic ability, and began his glorious scientific research course.

At that time, although the conditions of running a national The National SouthWest Associated University were poor, the academic atmosphere was extremely strong. Professors from three famous universities gather in one school to teach, which is a gathering of famous experts. Here, Chinese is a compulsory course for freshmen. Professors take turns to attend classes, and one professor only talks for a week or two, giving students more knowledge of literature and history.

1942, Yang Zhenning graduated from The National SouthWest Associated University, and then worked in The National SouthWest Associated University Research Institute. Two years later, I got my master's degree with honors. In order to write a master's thesis, Yang Zhenning met with Wang Zhuxi. At that time, Wang Zhuxi was a very young professor who had just returned from England. Under his careful guidance, Yang Zhenning wrote a paper on statistical mechanics. Since then, the future master of physics has forged an indissoluble bond with statistical mechanics. In the next 40 years, symmetry principle and statistical mechanics have been the research objects of Yang Zhenning, and he has made outstanding achievements.

During his study in National Southwest Associated University, especially during his postgraduate study, Yang Zhenning became interested in the research styles of some physicists. 1944, Yang Zhenning had won a scholarship from Tsinghua University to study in the United States, and left for the United States in the autumn of 1945.

After coming to the United States, Yang Zhenning first went to Princeton University, and then to the University of Chicago, where he met Fermi, whom he had admired for a long time. Fermi also appreciated the talent of this young man from China, but due to political reasons, Yang Zhenning failed to become Fermi's student. With Fermi's introduction, Yang Zhenning came to the door of Taylor, a famous physicist known as "the father of American hydrogen bombs". In this famous university, Yang Zhenning got along well with many world-famous physicists and benefited a lot.

1In the autumn of 949, the young Yang Zhenning came to the Princeton Institute of Physics, presided over by Professor Oppenheimer, to work with world-famous scholars, and Einstein, who was in his late years, also worked there.

195 1 year, Yang Zhenning and Li Zhengdao began to cooperate and questioned the law of parity conservation recognized by the physics community. They made a careful analysis of the existing physical work at that time and put forward several experiments to prove their conjecture. The experiments of Wu Jianxiong and his collaborators confirmed their conjecture. Their proposition that parity is not conserved has caused a sensation in the field of physics. Because of this work, Yang Zhenning and Li Zhengdao won the Nobel Prize in physics together, and parity non-conservation became the cornerstone of weak interaction theory in physics.

1954, Yang Zhenning classified isospin conservation as gauge field theory and put forward non-Abelian gauge field theory. In 1960s, physicists Gracio Weinberg and Salam used the mathematical structure of Yang Zhenning's article to construct a complete weak interaction theory, which formed the cornerstone of modern physical interaction theory.

Since 197 1, Yang Zhenning has been giving lectures in Chinese mainland every year, introducing the latest theories in the world to his counterparts in China. In order to help China develop high-tech undertakings, Yang Zhenning initiated and established the Foundation for Advanced Academic Research Center of Sun Yat-sen University and the Jiqun Teaching Award successively, and initiated and presided over the project "Integrable Dynamical System and Low-dimensional Condensed State Model" jointly researched by Nankai University, China University of Science and Technology, Peking University, Fudan University and Northwest University. This is a very difficult frontier research field in the world at present, and its research results have reached the international advanced level, and some of them are even in the international leading position.