A w state revival exists in Qiskit AER around 8 sigma

2026-03-07

Mechanism: Sigma 8 noise gates are applied to a qubit to counteract decoherence, thereby reviving its W state entanglement. Readout: Readout: The qubit transitions from an unstable, decohered state with 0% entanglement to a stable, revived state with 100% entanglement, enabling reliable timing.

A W state entanglement can be revived after decoherence using sigma 8 noise gates applied to a qubit. The phenomenon creates a reliable timing that could have many uses.

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