Level 3
Superposition
Superposition means the state has amplitudes for multiple possible measurement outcomes.
Visualize
Hadamards spread amplitude across many possible bit strings.
Understand
An H gate on |0> creates an even chance of 0 or 1.
Why it matters
Algorithms begin by exploring possibilities as amplitudes, then reshape them.
Misconception
Superposition is not free parallel classical computing; measurement still returns one sample.
Apply
Run three H gates and watch eight states appear.
Example DSL
# Superposition (3 qubits) qubits 3 H 0 H 1 H 2 MEASURE 0 MEASURE 1 MEASURE 2
Quick check
What should three Hadamard gates on three qubits produce?