deq connects declarative definitions of general QEC codes and custom logical instruction sets to runtime decoding of dynamic logical circuits, including feed-forward and arbitrary branching.
Yue gave an invited talk on deq at QEC 2026 in Santa Barbara, California, on June 8, 2026 (official conference schedule).
Developed during his first year at Microsoft Azure Quantum, deq is the world's first general, universal, and dynamic QEC decoding system. The talk introduced the system's support for general codes, custom logical instructions, and dynamic logical circuits with feed-forward and arbitrary branching.
Read more about the deq project, explore the open-source implementation, or follow the tutorial.