Rigetti Launches 108-Qubit Quantum System, Expanding Modular Architecture
Event summary
- Rigetti Computing has made its 108-qubit quantum system, Cepheus™-1-108Q, generally available via its Quantum Cloud Services (QCS®) Platform and Amazon Braket.
- The system features a chiplet-based architecture with twelve interconnected 9-qubit chiplets, tripling the qubit count from its previous 36-qubit system.
- Current performance metrics include a 99.1% median two-qubit gate fidelity and a gate speed of ~60 ns.
- Rigetti aims to improve the system's fidelity to 99.5% by the end of 2026.
The big picture
Rigetti's launch of the 108-qubit system underscores the ongoing race to scale quantum computing systems, with a focus on modular architectures to enhance qubit counts and performance. The integration with Amazon Braket expands access for global customers, highlighting the strategic importance of partnerships in the quantum computing ecosystem. The company's proprietary chiplet-based architecture positions it as a key player in the pursuit of fault-tolerant quantum computing.
What we're watching
- Scaling Challenges
- How Rigetti will address coherence time limitations as it scales beyond 100 qubits.
- Fidelity Improvements
- Whether Rigetti can sustain and enhance the fidelity of its systems as it deploys higher qubit counts.
- Market Positioning
- The pace at which Rigetti can differentiate itself in the competitive quantum computing landscape.
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