Archive for December 4, 2013

Bohmian Mechanics Explained

Posted in The Universe and Stuff with tags , , on December 4, 2013 by telescoper

Here’s a nice set of short videos about the de Broglie-Bohm theory which is a causal, deterministic, interpretation of Quantum Mechanics that can be thought of as a hidden variable theory. It’s a common misconception that hidden-variable theories are ruled out by experimental evidence (which is probably why they tend not to be discussed very much at undergraduate level) but this is not the case. What is true is that hidden variables have to be non-local, which many physicists consider too weird for comfort – but who’s to say that the Universe isn’t even weirder than we thought?