westquant-core

Framework-neutral substrate for WestQuant Open representation search.

Alpha contents

• WQIR-style typed representations across problem, Hamiltonian/operator, circuit/program, layout, control, hardware, execution, evaluation and resource-estimation layers;
• RepGraph v0.2 DAG with explicit transformation provenance;
• Transformation Registry;
• framework-neutral plugin protocols;
• deterministic beam search with explicit state/action rollouts;
• Pareto utilities;
• dataset manifests and JSONL utilities;
• canonical wqt-policy-v0.1 training-record schema and lightweight validator.

WQT20 is intentionally not a runtime dependency. Deterministic and heuristic search remain fully usable without a learned model, giving a clean baseline for future WQT20 comparisons.

License

westquant-core is licensed under the Mozilla Public License 2.0 (MPL-2.0). MPL-2.0 applies file-level copyleft: modifications to MPL-licensed files must be shared back under MPL-2.0, while proprietary software built on top of the core may remain closed.

CUDA-Q integration

Version 0.2.1 adds the framework-neutral ExecutionHint contract used by westquant-cudaq to carry backend family, simulator engine, precision, GPU/QPU allocation, shot budgets, and execution constraints through WQIR.