Quantum

IQM Demonstrates Entanglement Across a Complete 54-Qubit Processor

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 29/10/2026, 10:34:26 UTC.

Briefings

IQM Quantum Computers announced that its cloud-accessible Emerald system successfully entangled all 54 qubits simultaneously, achieving a fidelity of 0.516. This result exceeds the 0.500 threshold required to distinguish genuine entanglement from noise, marking a significant milestone for commercial quantum processors. The achievement represents a full-chip performance where every qubit contributes to a single computation, a capability previously limited to approximately 30 qubits on the Emerald system.

Key points

• IQM Emerald system achieved a GHZ entangled state across all 54 qubits simultaneously.
• Readout error mitigation was applied, resulting in a fidelity of 0.516 above the 0.500 noise threshold.

Context

IQM Quantum Computers (Nasdaq: IQMX) reported this breakthrough in a press release dated October 29, 2026. The system is cloud-accessible, allowing customers to utilize the full 54-qubit processor rather than the previously limited 30-qubit capability. This development is part of IQM's broader effort to automate quantum system tuning and calibration.

Limitations

The evidence is limited to a single press release from IQM Quantum Computers. No independent verification or third-party validation is provided. The specific date of the demonstration is October 29, 2026, but the exact date of the initial hardware calibration work is not specified.

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