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 ...

Imperial physicists have recreated the famous double-slit experiment, which showed light behaving as particles and a wave, in time rather than space. The experiment relies on materials that can change ...

Can darkness really travel faster than light? A surprising new physics experiment suggests it can—at least in a very unusual ...

Dark matter may alter the dynamics of colliding black holes and leave a signature in their gravitational-wave emission.

Scientists at the world's largest gravitational wave observatory have just squeezed light beyond a key quantum limit. The new technique, called frequency-dependent squeezing, will increase the number ...

In modern optics, light can be described at different levels: as rays, as scalar waves, as vector fields, and as quantum fields. In the first three levels, there are singularities—characteristic ...

Researchers report their insights on the emerging field of complex frequencies excitations, a recently introduced scheme to control light, sound and other wave phenomena beyond conventional limits.

Every wireless router in a home or office broadcasts the same fundamental type of energy that a ceiling light emits. The ...