Which statement best explains why Quantum Error Mitigation (QEM) is preferred over Quantum Error Correction (QEC) in current NISQ-era devices?

Question

Answer

QEM uses multi-qubit entanglement to reverse noise channels, whereas QEC does not depend on redundancy.

Answer

QEM is only applicable to superconducting qubits, making it more stable than QEC.

Answer

QEM completely removes noise using logical qubits while QEC reduces noise probabilistically.

Answer

QEM requires fewer physical qubits and avoids syndrome measurements, making it feasible under current hardware limitations.

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