Quantinuum Unveils 98-Qubit Trapped-Ion Processor with All-to-All Connectivity

Quantinuum has introduced 'Helios,' a 98-qubit trapped-ion quantum processor that marks a significant milestone in the evolution of quantum computing. By utilizing a quantum charge-coupled device (QCCD) architecture, the system effectively separates memory and logic regions, allowing ions to move through the processor similarly to data in a classical CPU. This design, combined with a sophisticated four-way junction and a new software stack, enables all-to-all connectivity, which is critical for executing complex quantum algorithms with high efficiency.

The performance metrics of Helios are particularly noteworthy. The system achieves exceptionally low infidelity rates—specifically 2.5 × 10⁻⁵ for single-qubit gates and 7.9 × 10⁻⁴ for two-qubit gates. These figures demonstrate that the team has successfully scaled the number of qubits from previous iterations without sacrificing the high-fidelity operations that define the trapped-ion modality. Furthermore, the use of barium ions and a more scalable laser architecture suggests a clear path toward even larger, more robust systems.

This development is a major step forward in the quest to surpass classical computing capabilities. By successfully performing random circuit sampling (RCS) at a scale beyond the reach of classical simulation, Helios proves its utility for practical applications. The ability to maintain high performance while scaling to nearly 100 qubits positions this architecture as a leading candidate for fault-tolerant quantum computing, with immediate implications for research in materials science and cryptography.