Deltaflow.Control: A de-centralised control system architecture for large-scale ion trap and cold atom quantum computing

A suitable control system is pivotal for sophisticated experiments in all atomic and molecular (AMO) physics. In particular, large-scale ion-trap and cold-atom quantum computing will employ some of the most complex control systems ever built. These will have to support measurement-heavy workflows, fast feedback with tight latency constraints, and be scalable in hardware and software. Here, we present the architecture of Deltaflow.Control, a control system designed with large-scale error-corrected quantum computing in mind. Its de-centralised architecture pushes processing to the periphery of the system reducing latency of feedback and feedforward loops. In the periphery, Atomic Control Units (ACUs) enable multi-tone generation of phase-coherent pulses with sub-nanosecond accuracy. We show execution of instructions on all channels without bottlenecks eventually scaling to multiple boards and larger heterogeneous systems. Finally, we present an intuitive and deterministic programming model and a user interface for quick control, tune up and experiment orchestration crucial to saving time in the lab and enabling more discoveries. Our goal is to provide a powerful control system that can handle the growing list of requirements for error-corrected, large-scale quantum computing.