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### Hidden variables

In quantum mechanics, hidden variables are sometimes assumed to explain phenomena that cannot otherwise be understood.

##### Explanation

Bohm's interpretation of quantum theory demands the existence of hidden variables in addition to the Schrödinger equation. A quantum potential would connect all elementary particles and thereby enable contact between these particles without loss of time.

##### Additional information

The American physicist David Bohm developed this theory already in 1952. It is a hypothesis that claims to reproduce all the standard results of the quantum theory in a deterministic way.