I decided that a reason contributing to the people’s misunderstanding of the meaning and validity of quantum mechanics is the prevailing focus on Schrodinger’s equation as the basic dynamical law.

Heisenberg’s equations for the operator are more direct a quantum counterpart of Newton’s equations of motion. In this picture, the only novelty are the nonzero commutators between the observables – the Heisenberg uncertainty principle etc.

— Density matrix and its classical counterpart

— Lubos Motl

2012.03.15 Thursday ACHK