From Blended Cat Images to Quantum Superposition: A Conceptual Classroom Demonstration
Sebahattin Kartal, Эрдоган Оздемир
Quantum superposition is one of the most challenging concepts in introductory quantum physics. This paper proposes a simple “blended cat” classroom demonstration designed to support the teaching of quantum superposition. The model consists of a double-sided rotating plate displaying two mutually exclusive states. When spun, the images appear visually blended; when stopped, a single state is observed. The demonstration is not intended as a physical representation of a quantum system but as a conceptual tool to initiate discussion about the meaning of superposition and measurement. Through guided questioning, students are encouraged to reflect on what it means for a system to be in a superposed state and how measurement determines observable outcomes. The activity provides an accessible and engaging entry point for introducing quantum superposition in secondary and introductory university physics courses.
The Physics Educator•Jan 1, 2026•0 citations