Two-Qubit, Small-Scale Quantum Computing as a Laboratory for Teaching: Demonstration and Workflow Design

In this work, we describe the integration of a two-qubit quantum computer, based on nuclear magnetic resonance, into a research and teaching environment at the undergraduate level. Using a sequence of progressively complex experiments, we illustrate how hands-on access to a small-scale quantum computer can clarify core concepts of quantum mechanics and computing, such as superposition, entanglement, and tomography. We discuss the practical challenges encountered by students, including calibration and discrepancies between simulated and experimental outcomes. These obstacles prove to be valuable teaching opportunities to introduce the realities of uncertainty in quantum devices. We believe that this quantum laboratory bench can effectively bridge the gap between abstract quantum coursework and experimental quantum information science training.