Re:Atomic Spins Evade Heisenberg Uncertainty Principle
by pif on Monday April 03, 2017 @09:20AM
(#14022527)
Neither it says anything about measurement. What I wanted to stress is that it isn't "just" a limitation about measurement precision: it forces you to switch to a description of nature which is far away from the classical one, at least at the microscopic level.
That the product of the standard deviations of position and momentum are at least half of h-bar.
It says nothing else about what that "means", the mechanism by which it comes about, or whether it is a fundamentally "true" description of reality.