Our universe plays by certain rules, which originate from different branches of physics. But sometimes the rules seem inconsistent with each other or don’t quite line up. And in other cases the rules ...

If the beam has orbital angular momentum, a plane connecting these ... That would mean it is simpler to add more dimensions — three, four or even — as in this experiment, 27 — and store ...

By stitching together individual images, we were able to reconstruct the three-dimensional structure of the orbital angular momentum and confirm that electrons form vortices in momentum space ...