CAD and PCB files, Results and Assembly Instructions for "A 3D-printable open-source quantum eraser kit for enlightening physics education"

These files support the article, which presents a low-cost, 3D-printable optics experiment that demonstrates delayed-choice quantum behaviour. For any queries, please contact either Dr Graham Gibson or Dr Akhil Kallepalli. 

Paper Abstract: We present a low-cost, 3D-printable optics experiment that demonstrates the delayed-choice quantum eraser in a simplified and visual manner. The demonstration kit allows explanation of several critical concepts, such as the Young's double slit experiment, quantum entanglement and complementarity, which investigate the wave-particle duality of light. The experiment uses linear polarisers to distinguish the path of classical laser light in a Young's double slit experiment, where the normally observed interference fringes are no longer visible once this information is known. An additional polariser can then be used to erase this information, recovering the interference fringes. The demonstration kit was developed as a 3rd-year undergraduate physics group project and has utilised recently established Maker Lab facilities at the universities of Glasgow and Strathclyde. This has proven essential in engaging and motivating students, and can be beneficial in projects involving a range of different technical skills, where each skill can be aligned with the general themes of the Maker Lab. We believe that this approach would also benefit the development of other similar projects, allowing a range of physics demonstrations to be developed in-house by the students themselves.