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Surface Code Sandbox

Learn Quantum Error Correction interactively. Inject Pauli errors onto the data qubits of a distance-3 surface code patch to observe how stabilizer measurements detect syndromes.

Surface Code Distance (d)
3
Error Injection Mode

Select an error type below, then click on the circular data qubits in the grid to flip their state.

Actions
Legend
Data Qubit (Stores logical information)
Z-Stabilizer (Detects X errors)
X-Stabilizer (Detects Z errors)
Measure Qubit (Extracts parity)