Tools Quantum Threat Tracker 2025-10-21-ionq-crosses-99-99-two-qubit-gate-fidelity
Milestone record
IonQ crosses 99.99% two-qubit gate fidelity
- Kind
- Hardware
What happened
IonQ reported the first four-nines (99.99%) two-qubit gate fidelity on its Tempo system, part of a roadmap targeting roughly 20,000 physical qubits by 2028.
Sources
On YFarmX
- Reference pageyfarmx.com/quantum/hardware/ionq/
One record from the Quantum Threat Tracker, maintained by the Security Desk. Data: CSV · JSON ·RSS · CC BY 4.0 with attribution to YFarmX.Tracker updated · 18 September 2026