Quantum measurement collapses a superposition into a definite outcome. The Born rule says the probability of each outcome equals the squared magnitude of its amplitude. A single measurement gives a random result — but repeat the same experiment many times and the frequencies converge to the predicted probabilities.
The measurement basis matters. Measuring a |+⟩ state in the computational (Z) basis gives 50/50 outcomes, but measuring in the X basis gives a deterministic result. Choosing the right basis is fundamental to quantum algorithms, error correction, and tomography.
This lab lets you prepare different quantum states, choose measurement bases, and watch probability distributions build up shot by shot — making the Born rule tangible.