**Eugene Paul "E.P." Wigner** was a Hungarian physicist and mathematician.

He received the Nobel Prize in Physics in 1963 "for his contributions to the theory of the atomic nucleus and the elementary particles, particularly through the discovery and application of fundamental symmetry principles". Some contemporaries referred to Wigner as *the Silent Genius* and some even considered him the intellectual equal to Albert Einstein, though without his prominence. Wigner is important for having laid the foundation for the theory of symmetries in quantum mechanics as well as for his research into atomic nuclei, and for his several theorems.