Researchers literally built a working quantum computer simulator using nothing but maple syrup, Scotch tape, and some cat lasers.
April 2, 2026
Original Paper
Building an analog simulator of a photonic quantum computer with transparent tape, maple syrup, and cat lasers, and implementing first quantum algorithms in the classroom
arXiv · 2604.00030
The Takeaway
Quantum computers usually require multimillion-dollar labs and liquid nitrogen cooling. This paper demonstrates that the complex math of quantum gates can be performed using the optical properties of breakfast syrups and office supplies, allowing students to run quantum algorithms for under $100.
From the abstract
This work presents the implementation of single-qubit gates, including $R_x$ and $R_z$ gates realized using transparent adhesive tape, and $R_y$ gates obtained with optically active maple and agave solutions. These gates form the native gate set of a simple photonic system and are subsequently used to construct a Hadamard gate. Two forms of two-qubit gates are introduced using a combination of a calcite crystal and transparent tape. The setups employ both the polarization and the path degree of