Journal ArticleStudent understanding of the Bloch sphereHu, Peter; Li, Yangqiuting; Mong, Roger_S K; Singh, Chandralekha<title>Abstract</title> <p>Quantum information science is a rapidly growing interdisciplinary field that is attracting the attention of academics and industry experts alike. It requires talent from a wide variety of traditional fields, including physics, engineering, chemistry, and computer science, to name a few. To prepare students for such opportunities, it is important to give them a strong foundation in the basics of quantum information science, in which quantum computing plays a central role. In this study, we discuss the development, validation, and evaluation of a tutorial on the Bloch sphere, a useful visual tool for developing intuition about single quantum bits (qubits), which are the basic building block of any quantum computer. Students’ understanding was evaluated after they received traditional lecture-based instruction on the requisite topics, and again after engaging with the tutorial. We observe, analyze, and discuss their improvement in performance on concepts covered in the tutorial.</p>IOP2024-02-2810514895European Journal of Physics4520257050143-0807https://doi.org/10.1088/1361-6404/ad23932309260; 1848336National Science Foundation