The Entanglement: the nature of quantum correlations simulation aims to help students determine in what ways entangled states differ from product states. The simulation allows students to compare and contrast the correlations that can be observed in product states and in entangled states. The simulation shows a source of particle pairs in the middle of two Stern-Gerlach apparatuses (SGAs), both of which can be rotated along two orthogonal axes. Students can choose between three different input states, one of which is an entangled state, and then send particle pairs through the experiment. The individual and paired measurement outcomes and the correlation coefficient are depicted mathematically and graphically. An accompanying activity for this simulation is available at http://quantumphysics.iop.org and at www.st-andrews.ac.uk/physics/quvis. The simulation can be downloaded from the QuVis website www.st-andrews.ac.uk/physics/quvis.
This simulation is part of the UK Institute of Physics New Quantum Curriculum, see http://quantumphysics.iop.org. Simulations and accompanying activities can be accessed from the IOP site and from www.st-andrews.ac.uk/physics/quvis. Sharing of these resources is encouraged, with all usage under the Creative Commons CC BY-NC-ND licence. Instructors can email quantumphysics@iop.org for activity solutions and to request to modify materials.