IonQ Hits 99.99% Gate Fidelity as Infleqtion Reaches 99.73%
Updated
Updated · The Motley Fool · Jun 17
IonQ Hits 99.99% Gate Fidelity as Infleqtion Reaches 99.73%
1 articles · Updated · The Motley Fool · Jun 17
Summary
IonQ reported 99.99% 2-qubit gate fidelity, putting trapped-ion systems at the top end of current accuracy metrics among major quantum-computing approaches discussed in the report.
Infleqtion, using neutral-atom qubits, achieved 99.73% 2-gate fidelity in 2024 and said it believes it can reach 99.9% this year.
That gap reflects a broader trade-off: trapped-ion machines offer the strongest accuracy but are slower and harder to scale, while neutral-atom systems aim for denser qubit layouts and faster operation.
The comparison also highlights how rival approaches differ, with IBM and Rigetti pursuing faster superconducting qubits despite lower fidelity, and D-Wave still lacking verified metrics for its hybrid gate-model effort.
In the quantum race, will fast but flawed qubits beat slow but precise rivals for market dominance?
Beyond the hardware, will AI like NVIDIA's Ising become the true kingmaker in the quantum computing ecosystem?
With encryption-breaking needs under one million qubits, is a quantum security crisis closer than experts admit?
IonQ’s 99.99% Fidelity and Infleqtion’s 100-Qubit Milestone: Engineering the Next Era of Quantum Computing
Overview
IonQ has made a major breakthrough in quantum computing by achieving 99.99% two-qubit gate fidelity on a prototype system in its research labs. This high fidelity means fewer errors need correction, allowing more complex algorithms to run. The achievement is powered by IonQ’s Electronic Qubit Control (EQC) technology, which uses precision electronics instead of traditional lasers to control trapped-ion qubits. By integrating all qubit-control components onto classical semiconductor chips, IonQ can manufacture its systems using existing semiconductor processes, making it easier to scale up production and move quantum computing closer to practical, real-world use.