June 29, 2022
The most beautiful experiment in quantum physics

The most beautiful experiment in quantum physics

  • Manuel de Barriga Carrasco
  • Conversation*

credit, Getty Images

In classical physics, there are two well-distinguished worlds: waves (mechanical or electromagnetic) and particles (particles), both of which are well defined.

Previously it was believed that there is no connection between these two worlds, but in the late nineteenth century, when the small world (molecules, atoms and their components) became known, it was discovered that the smallest particles can behave like waves.

If particles behaved like waves, we had to know the wave associated with these particles: the “particle wave”.

At the same time, at that time, the opposite became clear: the behavior of a wave is similar to that of a particle. Two examples of this are the photoelectric effect and the Compton effect.