痛悼！杨振宁今日病逝，享年103岁

Core Points - Renowned physicist Yang Chen-Ning, a Nobel Prize laureate and academician of the Chinese Academy of Sciences, passed away on October 18, 2025, in Beijing at the age of 103 [1] Group 1: Early Life and Education - Yang Chen-Ning was born on October 1, 1922, in Hefei, Anhui Province [4] - He attended Tsinghua University and was noted as the best student at Southwest Associated University [3][7] - Yang graduated from Southwest Associated University in 1942 with a thesis on group theory and multi-atomic molecular vibrations [9] Group 2: Academic Career - In 1945, Yang went to the United States as a Tsinghua University government-funded student and studied at the University of Chicago [11] - He earned his Ph.D. in 1948 with a dissertation on nuclear reactions and angular distributions [11] - Yang joined the Institute for Advanced Study in Princeton in 1949, where he began a distinguished academic career [13] Group 3: Major Contributions - In 1954, Yang and Mills proposed the "non-Abelian gauge field" theory, which laid the groundwork for the Standard Model of particle physics [16][18] - Yang and Li Zhengdao were awarded the Nobel Prize in Physics in 1957 for their work on parity violation in weak interactions [20][22] - He discovered the key equation for one-dimensional quantum many-body problems in 1967, leading to the development of the Yang-Baxter equation [24] Group 4: Influence and Legacy - Yang maintained a strong connection to his Chinese heritage and contributed significantly to scientific exchanges between China and the U.S. [26][28] - He played a crucial role in promoting basic scientific research in China and was involved in various educational initiatives [30][32] - Yang's contributions to physics have been recognized globally, with numerous awards and honors, including the establishment of the "Yang Chen-Ning Star" in 1997 [36]