Make a fair coin
Use one H gate, measure, and expect roughly half 0 and half 1.
Try Hadamard circuitPlayground
Quantum computing playground challenges.
Open a starter quantum DSL circuit, predict the output, then run it in the quantum circuit simulator and compare.
Cancel a move
Run H then H. The result should return to 0 nearly every time.
Try interference circuitBuild a pair
Use H and CNOT to create correlated two-qubit outcomes.
Try Bell state circuitAmplify a target
Run the two-qubit Grover sample and watch the marked state stand out.
Try Grover search circuit