"The idea of spontaneous symmetry breaking was introduced into particle physics by Nambu ... in 1960. He suggested that the low mass and low-energy interactions of s could be understood as a reflection of a spontaneously-broken chiral symmetry, would have been exact if the up and down quarks were massless. His suggestion was that light quarks condense in the vacuum, much like the s of superconductivity. When this happens, the ‘hidden’ chiral symmetry causes the pions’ masses to vanish, and fixes their low-energy s to s, s and each other."
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Nobel laureates in PhysicsNobel laureates from the United StatesPhysicists from the United StatesPeople from TokyoPhysicists from Japan
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Yoichiro Nambu
Yoichiro Nambu (南部 陽一郎 Nambu Yōichirō, 18 January 1921 – 5 July 2015) was a Japanese-American physicist and professor at the University of Chicago.
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