Scientists observe atomic vibrations using atomic-scale double slit technique

Since Richard Feynman first imagined machines small enough to arrange atoms, physicists have dreamed of watching matter move at its most fundamental level. A team of researchers has now realized a version of that dream by scaling the iconic double slit experiment down to atomic dimensions, using quantum interference not to puzzle over wave-particle duality but to listen, with new precision, to the vibrations of individual atoms within materials. The achievement is less a discovery of something unknown than a demonstration that the conceptual tools of one era can be reforged to answer the quest