• Watch IonQ’s Quantum World Congress 2025 Keynote On Demand. • Accelerating Towards Fault Tolerance: Unlocking 99.99% Two-Qubit Gate Fidelities Today, we released thetechnical paperdemonstrating that IonQ is the first and onlyquantum computing companyto cross the ‘four nines’ threshold, demonstrating two-qubit gate fidelities of 99.99%. • This is a landmark technical milestone that underpins IonQ’s accelerated roadmap to millions of qubits by 2030 - unlocking more complex applications for customers sooner and a thousands of time reduction in logical error rates. • IonQ has set the new world record in two-qubit gate fidelity and have also done sowithout ground-state cooling,which can be resource-intensive for large-scale systems. • This allows us to operate with record-level performance whilst speeding up and simplifying the overall computation. • Understanding the quantum computer clock speed One of the most important metrics to describe a quantum computer is its operation error rate, typically limited by the ’two-qubit gate error rate’.
Article Summaries:
- IonQ announced a technical paper showing its trapped‑ion system achieved a two‑qubit gate fidelity of 99.99 %, the first company to reach the “four‑nines” benchmark. The record‑setting performance was obtained without ground‑state cooling, reducing resource demands and simplifying large‑scale operation. The milestone lowers logical error rates by roughly a thousand‑fold, accelerating IonQ’s roadmap toward millions of qubits by 2030 and enabling more complex applications sooner. The paper also highlights advances in clock speed and the use of a quantum CCD architecture to maintain long‑range connectivity, further shortening time‑to‑solution for near‑term quantum algorithms.
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