AbstractMinimizing and understanding errors is critical for quantum science, both in noisy intermediate scale quantum (NISQ) devices1and for the quest towards fault-tolerant quantum computation2,3.

Key Results

  • Rydberg arrays have emerged as a prominent platform in this context4with impressive system sizes5,6and proposals suggesting how error-correction thresholds could be significantly improved by detecting leakage errors with single-atom resolution7,8, a form of erasure error conversion9–12.
  • However, two-qubit entanglement fidelities in Rydberg atom arrays13,14have lagged behind competitors15,16and this type of erasure conversion is yet to be realized for matter-based qubits in general.
  • Here we demonstrate both erasure conversion and high-fidelity Bell state generation using a Rydberg quantum simulator5,6,17,18.