Atomic Hong-Ou-Mandel Experiment: Helium atoms put in same quantum state, start appearing in same place


Quantum mechanics has so many counterintuitive features that it seems possible to learn a new one every month. Today’s lesson involves particles that are set into the same quantum state and effectively become indistinguishable. Once they are indistinguishable, they start behaving that way, showing up in the same place even when we’d expect to see them distributed at random. In today’s issue of Nature, a paper describes getting atoms to behave this way, blurring the lines between a quantum probability function and what we think of as a physical object.

Source: arstechnica.com

blurring the lines between probability and object

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