Students learning quantum mechanics are taught the Schrodinger equation and how to solve it to obtain a wave function. But a crucial step is skipped because it has puzzled scientists since the ...

A particle’s state spreads out like a wave, peaking where the particle is likely to be found. When you measure its position, this spread-out state, known as a wave function, transforms into a single ...

Considering all of the above, one question remains: is light a wave that sometimes looks like a particle, or a particle that sometimes looks like a wave? There is disagreement about this.

There has long been a mystery when calculating how an incoming light wave scatters off an object and becomes a modified, outgoing light wave. In particular, the time delay of the transition from ...

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.

A new theory suggests gravity could possibly be the result of entropy—which would mean everything in the universe would fall apart if it all remained unchanged.