A dark point inside a beam of light should not be much of a traveler. Yet in a new experiment, some of those points appeared ...

A world-famous light experiment from 1801 has now been carried out with sound for the first time. Research by physicists in Leiden has produced new insights that could be applied in 5G devices and the ...

Wave-particle duality (WPD) is known to be equivalent to an entropic uncertainty relation (EUR) based on the min- and max-entropies, which have a clear operational meaning in quantum cryptography.

Here we introduce a light-wave-driven counterpart to twisted layer stacking in hexagonal materials. We use the matching between the threefold symmetry of the crystal lattice and the structured spatial ...