QSA

Qubit State Algebra 0.2, QELM's compiled C++20 exact runtime for certified structural execution, reusable tensor and estimator plans, parameter sweeps, adjoint gradients, and QSC state transport.

Scope

Working areas

01Certified structural execution and exact fallback
02Reusable tensor and Pauli-estimator plans
03Exact adjoint gradients with causal pruning
04Cross-platform validation and QSC v1

Research boundary

Specialized routes require certified structure and limits fail closed. Arbitrary dense states remain exponential; published multipliers apply only to the named workloads.

Connected work