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Faculty Sponsor

Dr. Mark Masters


Department of Physics

University Affiliation

Indiana University – Purdue University Fort Wayne


The goal for this project is to demonstrate quantum entanglement in an undergraduate setting, reduce the costs for the apparatus and make the apparatus much more resilient to user error. The project is split into 3 major sections: Light source, detecting circuit, and counting circuit. We first approached the detection aspect of the project in order to better understand how single photon detectors work. Our model system utilized an inexpensive LED as a stand in for the much more expensive "Single Photon Avalanche Detector" (SPAD). This not only saved a great deal of money during testing, but also the regular LED was much more resilient than then SPAD. The added resiliency allowed for quick and easy changes to the circuit and allowed us to push the diode much further than the SPAD. The second part of our project centered on counting the number of "coincidences" of the entangled photon. This part of the project focused heavily with programming because we are using a development kit for the PSoC 5 microprocessor. Because the processor has the capacity to be programmed it's potentially very versatile in how we utilize it for the counting. We will present our results on the Single Photon Detector and on the development of our counter.


Physical Sciences and Mathematics | Physics

Quantum Entanglement

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Physics Commons