Add Yahoo as a preferred source to see more of our stories on Google. The Greenberger–Horne–Zeilinger (GHZ) paradox describes how quantum theory cannot be described by local realistic descriptions. A ...

A newly derived “q-desic” equation suggests that quantum effects may subtly alter particle trajectories across the universe.

A team of physicists has coaxed a single, photon-like particle into behaving as if it lives in 37 different quantum dimensions at the same time, and they can make it do the trick on demand. The result ...

A team of quantum physicists has taken a concept that once lived purely in equations and turned it into hardware reality, creating a single particle of light that behaves as if it occupies 37 distinct ...

Quantum theory is a mind-bending idea, suggesting that, at the subatomic level, particles can exist in multiple states at the same time. Scientists often give the example of physicist Erwin ...

That quantum mechanics is a successful theory is not in dispute. It makes astonishingly accurate predictions about the nature of the world at microscopic scales. What has been in dispute for nearly a ...

Stephen Hawking’s paradoxical finding that black holes don’t live forever has profound, unresolved implications for the quest for unifying theories of reality. In essence, what Hawking, who died six ...

Classical and quantum mechanics don’t really get along as the science of the subatomic can get, well, weird. Take, for instance, quantum entanglement, which says that the state of one particle can be ...