IQUIST Seminar: Steven Moses, Quantinuum

One of the main challenges facing large-scale quantum computing is scaling systems to more qubits while maintaining high fidelity operations.  In this talk, I will describe our efforts at Quantinuum in scaling trapped-ion quantum computers based on the quantum charge-coupled device architecture.  I will particularly focus on our second-generation system (H2), which has a race-track shaped ion trap.  H2 features several technologies crucial to future scalability, including electrode broadcasting, multi-layer RF routing, and magneto-optical trap loading, while maintaining, and in some cases exceeding, the gate fidelities of our first-generation system.  I will present the thorough set of benchmarking experiments we performed to characterize the system with 32 qubits, as well as some preliminary benchmarking data on 56 qubits.  I will also briefly describe other work that’s being done at the company in support of our technical roadmap.

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