It was rediscovered by Hideki Yukawa, who won a Nobel Prize for his work in 1949 - the first of several Nobel Prizes awarded for work which Stueckelberg contributed to, without recognition.
The pioneering work in this field was done by Stueckelberg, Landau, and Zener in the 1930s, in their work on what is now known as the Landau–Zener transition.
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