Physics
The idea of a multiverse of universes is derived from a particular interpretation of quantum mechanics, but now a new twist on a classic experiment says it is time to put the idea to bed
By Alex Wilkins
Is it time to say goodbye to the multiverse?
SCIENCE PHOTO LIBRARY/Getty Images
An advanced version of the famous double-slit experiment has directly measured a single photon in two places at once – or at least, that’s the claim made by a team of physicists who say these results could destroy the concept of a multiverse. This interpretation remains highly contested, however, with other physicists arguing that the experiment can’t really tell us anything new about the nature of reality.
The double-slit experiment, first performed in 1801, has played a key role in the development of quantum mechanics. It shows…
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