The setup is perfectly suited to practically demonstrate the physics of entanglement in student lab courses at colleges and universities. The high performance of quED also enables its integration into modern scientific experiments and commercial applications.

The heart of the system employs a spontaneous parametric down conversion process to generate polarization entangled photon pairs. Fiber coupled single photon detectors in connection with polarizing filters are used to detect the photon pairs, analyze their polarization and verify their non-classical correlations. A counter and coincidence detection unit registers single and pair events and displays the corresponding counting rates on a well readable display. Close...