IonQ Posts 99.99% Fidelity on 256 Qubits, Beating Rigetti's 99.1% on 108
Updated
Updated · Yahoo Finance · Sep 5
IonQ Posts 99.99% Fidelity on 256 Qubits, Beating Rigetti's 99.1% on 108
3 articles · Updated · Yahoo Finance · Sep 5
Summary
IonQ's 256-qubit system achieved 99.99% 2-qubit gate fidelity, far above Rigetti's 99.1% on its 108-qubit machine in a key quantum-computing accuracy benchmark.
That gap matters because larger qubit systems usually become less accurate, making IonQ's higher score on a bigger system a notable technical edge.
IonQ gets there with trapped-ion technology that uses lasers and ion traps, while Rigetti follows the more common superconducting approach also pursued by larger tech rivals.
The trade-off is speed: Rigetti's superconducting design can process faster, but the report argues accuracy is the more critical hurdle for quantum computing's near-term usefulness and investment case.