1925 Louis de Broglie suggests that any particle with mass can behave like a wave.
1927 Werner Heisenberg shows there is an inherent uncertainty in certain pairs of values at the quantum level, such as the position and momentum of a particle.
1927 Paul Dirac applies quantum mechanics to fields rather than single particles.
Late 1950s Julian Schwinger and Sheldon Glashow develop the electroweak theory, which unites the weak nuclear force with electromagnetism.
1965 Moo-Young Han, Yoichiro Nambu, and Oscar Greenberg explain the interaction of particles under the strong force in terms of a property now known as “color ...