Eugene Paul "E. P." Wigner (Hungarian: Wigner Jenő Pál; November 17, 1902 – Januar 1, 1995), wis a Hungarian-American theoretical pheesicist, ingineer an mathematician. He received hauf o the Nobel Prize in Pheesics in 1963 "for his contreibutions tae the theory o the atomic nucleus an the elementary pairticles, pairteecularly throu the discovery an application o fundamental symmetry principles". His brither-in-law wis Paul Dirac, whose wife wis Wigner's sister.