Math and computer science researchers have long known that some questions are fundamentally unanswerable. Now physicists are exploring how physical systems put hard limits on what we can predict.

This allows them to be in two places at once (superposition), coordinate their ... when we look at the colored films on puddles of oily water. But we never see any large object – such as a ...

Central to quantum mechanics is the concept of wave-particle duality where quantum ... are arranged in a way that looks exactly like the pattern of water ice. The unique structure of the tiny ...

Superposition, one of the many strange phenomena observed ... A major area of inquiry for quantum mechanics is wave-particle duality, a quantum phenomenon in which objects can act like both waves and ...

Before it's observed, it's not halfway between states, but is instead a "superposition" of the two at once. In quantum ...

Researchers have developed a method to quickly create NOON states using ultra-cold atoms. These states, which play an ...

Underwater waves could also be used to reduce the risks of tsunamis and to improve their early warning systems.