追忆杨振宁：回国定居已超20年，为自家取名“归根居”

Core Points - Yang Zhenning, a Nobel Prize winner and prominent physicist, passed away at the age of 103, known for his significant contributions to theoretical physics, including the Yang-Mills theory and the concept of parity violation [1][2] - He was the first Chinese Nobel laureate and made substantial contributions to China's scientific and educational development after renouncing his U.S. citizenship in 2015 [1][5] Group 1 - Yang Zhenning was born on September 22, 1922, in Hefei, Anhui, and developed a strong interest in mathematics and physics during his education at Southwest Associated University [3] - He achieved a Ph.D. in the U.S. and worked at the Institute for Advanced Study in Princeton, where he co-developed the Yang-Mills theory in 1954, recognized as one of the 20th century's most important breakthroughs in physics [3][4] - In 1956, he and fellow physicist Li Zhengdao questioned the conservation of parity in weak interactions, leading to the discovery of parity violation, which was later experimentally confirmed [3][4] Group 2 - Yang Zhenning became a U.S. citizen in 1964 but maintained a strong connection to his Chinese heritage, returning to China for the first time in 1971 and advocating for academic collaboration between China and the West [4] - He settled in Tsinghua University in 2003, naming his home "Gui Gen Ju," which reflects his desire to return to his roots [4] - In 2015, he renounced his U.S. citizenship, expressing his deep connection to Chinese culture and heritage [5]