Universal Graph-Based Scheduling for Quantum Systems

Abstract

High fidelity operation of a quantum system requires precise tuning of control parameters. Calibration of a quantum system is often achieved by running complex series of dependent experiments and a full system calibration can require tens of calibration experiments to complete. Optimal control parameters drift over time, and components of experimental quantum systems are susceptible to failure. Hence, continuous operation of a quantum system requires automated background processes such as frequent recalibration and monitoring. In this article, we present a scheduling toolkit that schedules experiments based on a directed acyclic graph using a configurable traversal algorithm. Our scheduler can be triggered from any process, enabling universal feedback between the scheduler and the quantum control system. To demonstrate the capabilities of our system, we implemented a complex system calibration algorithm based on our scheduling toolkit.