Analyst Picks IonQ as Top Quantum Stock With 99.99% Fidelity
Updated
Updated · The Motley Fool · Jul 22
Analyst Picks IonQ as Top Quantum Stock With 99.99% Fidelity
3 articles · Updated · The Motley Fool · Jul 22
Summary
IonQ was singled out as the best buy among five public quantum-computing pure plays, with the call centered on its current accuracy lead and broader ecosystem strategy.
At 99.99% 2-qubit gate fidelity, IonQ tops trapped-ion peer Quantinuum at 99.92% and stands well ahead of Rigetti's roughly 99.1%, a gap the report says is significant in computing.
IonQ's edge also rests on expansion beyond hardware: it has added quantum sensing, networking and satellite transmission, and is pursuing SkyWater Technology to bring chip manufacturing in-house.
The report still frames quantum computing as speculative, arguing a basket approach may be prudent because trapped-ion, superconducting, neutral-atom and annealing technologies are all still racing toward fault tolerance and commercial scale.
Why was quantum leader IonQ excluded from the CHIPS Act funding that boosted its top rivals?
What does IBM's 'quantum advantage' this year mean when experts predict real ROI is a decade away?
With new breakthroughs, which company's approach to error correction will win the race to a stable quantum computer?
IonQ’s 99.99% Two-Qubit Gate Fidelity: Technology, Revenue Growth, and the Quantum Computing Market Outlook
Overview
IonQ has introduced a detailed blueprint for scalable, fault-tolerant quantum computing, setting new standards for technical clarity in the industry. A key challenge addressed is achieving high two-qubit gate fidelity, which is crucial because quantum algorithms often require deep circuits with many consecutive two-qubit operations. In these circuits, errors multiply with each gate, making high fidelity essential for practical use. For example, with 100 two-qubit gates at 99.0% fidelity, the chance of an error-free run is only about 37%, but increasing fidelity to 99.5% raises this to 61%. This breakthrough highlights IonQ’s focus on overcoming fundamental barriers to real-world quantum computing.