Scientists have made the first experimental observation of matter wave diffraction in a short-lived electron-positron atom.

Tim Kovachy is in the Department of Physics and Astronomy and at the Center for Fundamental Physics, Northwestern University, Evanston, Illinois 60208, USA. Quantum mechanics predicts that single ...

Wave or particle? Science continues to unravel one of humanity's greatest mysteries in this universe in rather useful ways.

Physicists have proposed a way to extract the internal quantum states of electron wave packets by analyzing how those packets ...