Yoichiro Nambu
Moo-Young Han (November 30, 1934 – May 15, 2016) was a South Korean-born American physicist. He was a professor of physics at Duke University. Along with Yoichiro Nambu of the University of Chicago, he is credited with introducing the SU(3) symmetry of quarks, today known as the color charge. The color charge is the basis of the strong force as explained by quantum chromodynamics.