著名物理学家杨振宁先生逝世，享年103岁

Core Viewpoint - The article commemorates the life and contributions of renowned physicist Yang Chen-Ning, who passed away at the age of 103, highlighting his significant impact on modern physics and his legacy in scientific research [2][19]. Group 1: Personal Background - Yang Chen-Ning was born in 1922 in Hefei, Anhui, graduated from Southwest Associated University in 1942, and obtained his master's degree in 1944 before pursuing further studies in the United States [8]. - He earned his Ph.D. from the University of Chicago in 1948 and conducted postdoctoral research at the Institute for Advanced Study in Princeton, collaborating with fellow physicist Li Zhengdao for over a decade [8]. Group 2: Major Contributions - Yang's most notable achievement is the discovery of parity non-conservation in weak interactions, which he and Li Zhengdao proposed in 1956, challenging the long-held belief in parity conservation in physics [10][11]. - The Yang-Mills theory, developed in 1954 with Robert Mills, extended the concept of gauge symmetry beyond electromagnetism, forming the mathematical foundation for the Standard Model of particle physics [13]. - He made foundational contributions to statistical mechanics and integrable systems, notably through the Yang-Baxter equation, which has widespread applications in various fields, including quantum field theory and condensed matter physics [14][16]. Group 3: Legacy and Impact - Yang returned to China in his later years, settling at Tsinghua University, where he continued to mentor future generations of scientists [17]. - In 2021, he donated over 2,000 valuable items, including books and manuscripts, to Tsinghua University, leaving a lasting intellectual legacy [17]. - His passing marks the end of an era in physics, but his scientific ideas will continue to guide future explorations of the universe [19].