Physicists led by Roland Wester of the University of Innsbruck have now for the first time observed a quantum mechanical tunneling reaction in experiments. The observation can also be described exactly in theory. With the study published in Nature, the scientists provide an important reference for this fundamental effect in chemistry. It is the slowest reaction with charged particles ever observed.
Tunneling reactions in chemistry are very difficult to predict. The quantum mechanically exact description of chemical reactions with more than three particles is difficult, with more than four particles it is almost impossible. Theorists simulate these reactions with classical physics and must neglect quantum effects...
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