This interpretation dates to the 1920s, when physicist Max Born argued that the wave function, represented by the Greek letter psi, is a useful mathematical tool.

The wave function—an abstract concept used to predict the behavior of quantum particles—is the bedrock on which physicists have built their understanding of quantum mechanics. But this bedrock ...

Weird science There's a long, long history of puzzled physicists showing that the wave function must be a bizarre object. Quantum entanglement is a direct result of the properties of the wave ...

You’re probably thinking that we don’t collapse the wave function at all when we open the box. We’re just finding out whether we have to have a cat funeral or not. And you’re not the only one.