Using Digital Twin Methods to Accurately Simulate Quantum Error Correction

Diagram of a distance‑7 rotated surface code with 97 physical qubits (49 data qubits + 48 measurement qubits) modelled by the team. Grey nodes are data qubits; labeled circles are ancillas measuring X- or Z-type checks on neighboring data qubits. Edge colors encode the residual ZZ crosstalk strength (darker edges indicate stronger crosstalk).Credit: Quantum Elements […]

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