2025-11-20
LQ 0
IonQ: 0 Logical Qubits — No QEC Demonstration to Date
As of November 2025, IonQ has not demonstrated any QEC-based logical qubits — a fact the company openly acknowledges on its own official blog. IonQ argues its 99.99% physical qubit fidelity (achieved via Oxford Ionics EQC technology, October 2025) already surpasses the error rates of all existing logical qubit demonstrations, making immediate QEC encoding strategically counterproductive. IonQ targets ~800 fully-featured logical qubits by 2027.