Quantum mechanics has always had a way of making even the sharpest minds stop and scratch their heads. In the everyday world, you expect objects to follow straightforward rules. A ball thrown into the ...

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 ...

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 ...

Artist view of a black hole ringing down into a stable state. Credit: Yasmine Steele at University of Illinois–Urbana Champaign Artist view of a black hole ringing down into a stable state. Credit: ...

Viruses exist at the boundary between living and non-living matter, while skin is a living interface between physics and ...

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 ...

In anti-Klein tunneling, sound waves bounce back as if hitting an invisible wall; in Klein tunneling, they pass through the barrier effortlessly—as if the wall isn’t there at all. In a groundbreaking ...

Breaking the time asymmetry remains a fundamental yet tantalizing scientific challenge. At the macroscopic level the quest has so far turned out to be fruitless, but on the other hand in the subatomic ...