4 Quantum Mechanical Laws
1. If the wave function of a free particle is Gaussian, then the wave function is being calculated in an inertial frame of reference.
2. The wave functions of non-free particles … particles subjected to a continuous potential … are solutions to the Schroedinger equation.
3. Interactions at a distance … those continuous in space-time … do not localize the interacting particles. The charges of such particles are distributed in a cloud whose density is specified by |Y|2. Maxwell’s equations and the Lorentz force law apply, as does Newton’s 3rd law of action/reaction.
4. Contact interactions … collisions … localize the interacting particles, and the wave function is momentarily collapsed. Newton’s 3rd law of action/reaction applies during the collision.