In 1920, Danish physicist Niels Bohr proposed that although light (photons) has a dual nature, behaving as both particle and wave, it’s impossible to observe this duality at the same time. This is ...

In quantum world, particles like photons can behave like particles (localized points) or waves (spreading out, showing interference patterns). The classic double-slit experiment is a good ...

How many beam splitters, lenses, and mirrors does it take to entangle a photon? The answer was “way too many” for years and that’s been the problem. In the quantum realm of photonics, pursuit of ...

A single atom as a movable slit: Researchers realize Einstein's thought experiment in original form, observing quantum-classical transition.

This is a preview. Log in through your library . Abstract X-ray free-electron lasers (FELs) deliver ultrabright X-ray pulses, but not the sequences of phase-coherent pulses required for time-domain ...