Who introduced a map that was used by a Nobel Prize winning physicist to work out the theory of quantum angular momentum?
Julian Schwinger Julian Seymour Schwinger (February 12, 1918 – July 16, 1994) was a Nobel Prize winning American theoretical physicist. He is best known for his work on the theory of quantum electrodynamics (QED), in particular for developing a relativistically invariant perturbation theory, and for renormalizing QED to one loop order. Schwinger was a physics professor at several universities.
Manne Siegbahn Karl Manne Georg Siegbahn {'1': ", '2': ", '3': 'ForMemRS', '4': "} (3 December 1886 – 26 September 1978) was a Swedish physicist who was awarded the Nobel Prize in Physics in 1924 "for his discoveries and research in the field of X-ray spectroscopy".