Combines error budget allocation and physical resource estimation into a single end-to-end planning pipeline — from circuit specification to hardware feasibility assessment in one pass.
Teams working on quantum circuits typically run error budgeting and resource estimation as separate steps, reconciling the outputs manually. The unified budget pipeline eliminates that reconciliation step: it takes a circuit and target error probability as input and produces a complete hardware feasibility report — error allocations, physical qubit requirements, magic-state overhead, and a hardware compatibility verdict — as a single artifact.
The pipeline was formed by merging the previously separate error-budget and physical-resource subsystems into a single orchestrated workflow called BudgetPipeline. This gives consistency guarantees that separate tools cannot: the resource estimates are always computed against the same error allocation that will govern execution, eliminating the class of discrepancy that arises when allocations and estimates drift apart during iterative planning.
One API call takes a circuit and target error rate and produces a complete feasibility report, covering error allocation, qubit requirements, depth projections, and hardware compatibility. There is no intermediate artifact to pass between tools and no manual coordination step.
Error budget and resource estimate are computed against the same internal state, guaranteeing consistency that separate-tool workflows cannot provide. The qubit overhead forecast always reflects the same allocation that will govern execution — never a stale or mismatched one.
The pipeline outputs a structured recommendation indicating whether the circuit is feasible on the target hardware and, if not, which constraints are binding — qubit count, depth limit, or magic-state factory capacity — so the team knows exactly what to address.
Teams previously managing error budgeting and resource estimation as separate tools with separate outputs can replace both with a single BudgetPipeline invocation, reducing planning overhead and eliminating the version-skew failures that occur when the two tools diverge.
Planning hub — the recommended starting point for any new circuit before hardware time is scheduled. Combines phi-quantum-errbudget and phi-quantum-resource into one workflow. Its output feeds directly into the fault-tolerant executor for execution configuration and into the transpiler for hardware-aware compilation.
One of the two subsystems the pipeline orchestrates — assigns per-gate error allowances weighted by criticality.
The other subsystem the pipeline orchestrates — forecasts physical qubit counts, depth, and magic-state overhead from the error allocation.
Published under the GNU AGPLv3 with whitepaper and reference implementation. Commercial licensing is available for closed-source deployments.