The double-slit experiment was designed to investigate whether light is a wave or a particle. It is one of the most famous and weirdest experiments in physics.

Lvov and the team built their model using wave-wave interaction theory, which describes how internal waves exchange energy and redistribute it when they interact.

Does light behave more like a particle, or like a wave? Today we know the surprising answer. Here's why it took so long to get there.

There has long been a mystery when calculating how an incoming light wave scatters off an object and becomes a modified, ...