In the 1930s, there arose an interpretation of wave mechanics that came to be called the Copenhagen interpretation, because it came out of Niels Bohr’s Institute in Copenhagen, with Bohr as its principal proponent. That was disconcerting (to non-quantum physicists) because it means that you actually do not know – and can never know – exactly what an electron is doing or where it is – you can only make a calculated guess. For this, Schrödinger shared the Nobel Prize in Physics in 1933.Īfter Schrödinger, the big question was: what do the wave functions in the wave equation physically mean? Schrödinger’s own view was that the wave function of an electron represents the probability that you will find that electron at a particular place in the atom.
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This marked the beginning of what is often called wave mechanics, the true flowering of quantum physics. What Schrödinger showed in 1926 was that one could describe a hydrogen atom by an equation, a wave equation, the solutions of which would perfectly predict the energy states of the atom. By the early 1920s, it was suspected not only that waves have particle-like properties, but that particles, such as electrons and protons, have wave-like properties as well.
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It was known that energy is not continuous, but is passed back and forth in small packets, called quanta, which explained such things as why electrons in an atom could only be found in certain energy states, and why, when electrons moved from state to state, the atom emitted only certain discrete wavelengths of light. When Schrödinger came into physics, quantum theory was about 20 years old. Erwin Schrödinger, an Austrian physicist, was born Aug.