text: Erwin Rudolf Josef Alexander Schrödinger ForMemRS HonMRIA (, ; ; 12 August 1887 – 4 January 1961), sometimes written as  or , was a Nobel Prize–winning Austrian and naturalized Irish physicist who developed fundamental results in quantum theory. In particular, he is recognized for postulating the Schrödinger equation, an equation that provides a way to calculate the wave function of a system and how it changes dynamically in time. He coined the term "quantum entanglement", and was the earliest to discuss it, doing so in 1932.