A new experiment captures a single parcel of light morphing between wave and particle. Published in the April Physical Review A, the experiment dissects a light pulse associated with a single photon ...

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 ...

The theoretical physicist John Wheeler once used the phrase “great smoky dragon” to describe a particle of light going from a source to a photon counter. “The mouth of the dragon is sharp, where it ...

A property of laser light first predicted in 1963 by the future Nobel laureate Roy Glauber has been verified by physicists in Italy. Marco Bellini and colleagues from the University of Florence have ...

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 ...

Researchers in Saudi Arabia and the US say that two people equipped with suitable optical devices should in principle be able to exchange information without transferring even a single photon. The ...

Once a year, everyone at the MESA+ Institute, where I work, gets together to celebrate the achievements of the past 365 days. Everyone listens to talks by students, post docs, and learned professors.

Researchers have taken a famous quantum-physics experiment to new heights by sending light, in the form of photons, to space and back, demonstrating the dual-particle-wave nature of light over much ...