Wednesday, May 27, 2015

Wheeler's "Delayed Choice" Experiment Done With Single Atoms

Looks like we now have the first "Delayed Choice" experiment done with single atoms, this one with single He atoms.

Indeed, the results of both Truscott and Aspect's experiments shows that a particle's wave or particle nature is most likely undefined until a measurement is made. The other less likely option would be that of backward causation – that the particle somehow has information from the future – but this involves sending a message faster than light, which is forbidden by the rules of relativity.

There are now many experiments that support QM's non-realism and quantum contextuality. This latest experiment adds to the body of evidence.


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