The wave-particle duality is one of those essential pillars. Physics courses devote weeks to just introducing it – but there are still important aspects that can be covered in a short article.

In fact it can even be in infinitely many places at the same time, exactly as a wave. Hence the notion of wave-particle duality, which is fundamental to all quantum systems.

Wave-particle duality is a cornerstone of quantum mechanics, which is our modern theory of how subatomic particles behave.

The wave-particle duality is one of those essential pillars. Physics courses devote weeks to just introducing it – but there are still important aspects that can be covered in a short article.

But until we figure out a way to test quantum gravity using gravitational waves, we won't know whether the "particle" part of wave-particle duality holds for gravitons.

In the traditional formulation of quantum mechanics, when a particle is measured -- meaning it is found to be in one particular location -- the wave function is said to collapse.

The classic quantum mechanics problem is a particle in a 1-D box. Here is a numerical solution to that problem.

Light is well known to exhibit both wave-like and particle-like properties, as imaged here in this 2015 photograph. What's less well appreciated is that matter particles also exhibit those wave ...