IQM Demonstrates Entanglement Across a Complete 54-Qubit Processor
thequantuminsider.com Oct 29, 2026

IQM Demonstrates Entanglement Across a Complete 54-Qubit Processor

AI-summarised brief · reviewed before publication

IQM Quantum Computers announced that its cloud‑accessible Emerald system achieved a Greenberger–Horne–Zeilinger entangled state across all 54 qubits, recording a fidelity of 0.516 with readout error mitigation. The result surpasses the 0.500 threshold that distinguishes genuine entanglement from noise, marking one of the strongest demonstrations on a commercially available quantum processor. IQM attributes the success to refined calibration, optimized gate selection, and an automated state‑preparation routine, and now offers customers full‑chip performance via the cloud.

💡 Why It Matters

  • · Demonstrating full‑chip entanglement validates the processor’s scalability and reliability, enabling algorithms that can exploit the entire hardware capacity rather than a limited subset.
  • · This milestone signals a tangible step toward practical, large‑scale quantum computing applications.