"The repulsive δ interaction problem in one dimension for N particles is reduced, through the use of Bethe's hypothesis, to an eigenvalue problem of matrices of the same sizes as the irreducible representations R of the permutation group S'N. For some Rs this eigenvalue problem itself is solved by a second use of Bethe's hypothesis, in a generalized form. In particular, the ground-state problem of spin-½ fermions is reduced to a generalized Fredholm equation."
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Educators from ChinaNational Medal of Science laureatesPhysicists from ChinaNobel laureates from ChinaAcademics from China
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Yang Chen-Ning
Yang Chen-Ning (; pinyin: Yang Zhènníng; 1 October 1922 – 18 October 2025), was a Chinese theoretical physicist, known for his research on parity violation in weak interactions, Yang–Mills theory, and the Yang–Baxter equation. He shared the 1957 Nobel Prize in Physics with Tsung-Dao Lee.
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