Scientists show helium atoms can exist in two places at once, preserving quantum behavior even as they fall under gravity.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Einstein believed that, by using a complicated double-slit experiment involving a spring that recoils ...

(Inside Science) — One of the strangest things about quantum mechanics is that a particle can act like a wave. In particular, in a double-slit experiment, individual particles that are shot through a ...

Researchers discovered brand new interference patterns in twisted two-dimensional tungsten ditelluride lattices. These patterns can be tuned to look like periodic spots or even one-dimensional bands ...

Even younger: illustration of the new double-slit experiment using resonant inelastic X-ray scattering on an iridium oxide crystal. An intense beam of high-energy X-ray photons (violet) hits two ...