Rigetti Computing has launched its latest quantum computer, the 84-qubit Ankaa-3, marking a significant milestone in superconducting quantum computing. Featuring a broad hardware redesign, the Ankaa-3 system achieves a 99.5% median two-qubit gate fidelity. It introduces technological advancements such as enhanced cryogenic hardware, optimized qubit circuit layouts, and precision control enabled by Rigetti’s novel Alternating-Bias Assisted Annealing (ABAA) technique.
The system supports high-performance iSWAP gates with a median gate time of 72 nanoseconds and fSim gates optimized for algorithms like random circuit sampling. These improvements stem from innovations across Rigetti’s technology stack, including advanced qubit coherence methods, scalable 3D signal delivery, and reduced qubit error rates.
Ankaa-3 is now available on Rigetti Quantum Cloud Services (QCS®) and will integrate with Amazon Braket and Microsoft Azure in early 2025. This launch reinforces Rigetti’s progress in the superconducting modality, emphasizing its scalability, fast gate speeds, and compatibility with established manufacturing processes.
Rigetti projects further advancements in 2025, including a 36-qubit modular system by mid-year and a system exceeding 100 qubits by year-end, both targeting a 2x reduction in error rates. These systems aim to accelerate progress toward fault-tolerant quantum computing and practical applications.
For more, visit Rigetti’s press release here.
December 23, 2024
