The quantum mechanics curricular material in this package uses the OSP Spins program (original Macintosh version by Daniel Schroeder and Thomas Moore, original Java version by David McIntyre, and OSP Java Version by Wolfgang Christian) which is found in the Davidson package org.opensourcephysics.orst.spins.Spins.
The OSP Spins program allows users to teach and learn the quantum-mechanical concepts of spin, basis states, operators, and the measurement of compatible and incompatible observables.
Double-click the green arrow in the navigation page. The Spins Default Configuration node shows the OSP Spins program with the default parameters: a statistical mixture of spin-1/2 particles ejected from an oven incident on a single ideal Stern-Gerlach apparatus that measures the z component of spin. The blue analyzer can be clicked to change its orientation. The results of the measurement are shown on the detectors (the horizontal bar graphs).