Changelog

Release history for SCPN-Quantum-Control.

v0.10.0 Latest

26 June 2026

Studio federation, uncertainty quantification, and architecture documentation

  • SCPN-STUDIO federation surface — a scpn_quantum_control.studio capability manifest on the SCPN-STUDIO platform contract, declaring eight verbs (compile / simulate / analyse / validate / benchmark / replay plus mitigate / execute), nine studio.*.v1 evidence schemas mapped from the five-class hardware ledger, a content-addressed digest, and an additive architecture-map extension block for Hub ingestion.
  • Uncertainty quantification — zero-noise extrapolation now carries a propagated standard error and coverage interval (weighted-least-squares when per-scale shot-noise errors are supplied), and synchronisation metrics gain analytic delta-method and distribution-free bootstrap intervals. Mitigated and hardware-derived results now carry defensible error bars instead of bare point estimates.
  • Architecture documentation — an Architecture Map (per-stage IO contracts, backend/dispatch wiring, cross-repo integration points, honest scope boundaries) and an Architecture Decision Records page covering six major design decisions.
  • Capability inventory — 524 Python source modules, 919 public classes, 171 Rust PyO3 bindings, 853 test files, 100 notebooks, across 32 subpackages.

v0.9.12

v0.9.6 – v0.9.12 · April–June 2026

Post-Phase-1 hardening, publications, and documentation

  • Publications (25 May 2026) — Seven open-access preprints posted to Zenodo with citable DOIs: DLA parity hardware observation, Kuramoto–XY on 156 qubits, monitored feedback vs open-loop, reduced-Pauli entanglement checks, Fisher-information feedback, Rust/VQE methods, and the software-framework note.
  • v0.9.12 (15 Jun) — Upgraded the Rust PyO3/NumPy binding stack; refreshed public release metadata and documentation surfaces.
  • v0.9.11 (5 Jun) — Promoted the native compiler-backed whole-program automatic-differentiation determinant path.
  • v0.9.10 (4 Jun) — Polished the differentiable-programming documentation; documented the enterprise-readiness boundary.
  • v0.9.9 (2 Jun) — Added a public differentiable-programming documentation route; refreshed onboarding and quickstart.
  • v0.9.8 (1 Jun) — Added a public onboarding page; aligned the release-readiness audit coverage threshold.
  • v0.9.7 (19 May) — First GOTM-SCPN Paper 0 Knm preregistered replay; Paper 0 methodology-paper outline.
  • v0.9.6 (17 Apr) — Security: bumped rand 0.9.2→0.9.4 for an upstream advisory; removed an IBM Cloud CRN prefix log in the job-retrieval script.

v0.9.5

April 2026

Phase 1 Hardware Confirmation (10 April 2026)

  • DLA parity asymmetry confirmed on ibm_kingston (Heron r2, 156 qubits) — first publishable hardware result
  • 342 circuits, 4–8 qubits, up to 21 repetitions per point, ~700,000 shots total
  • Mean asymmetry for depths ≥ 4: +10.8% (odd sector more robust than even sector)
  • Strongest signal at Trotter depth 6: +17.48% (21 reps, binomial p = 0.035)
  • 7 of 8 depth points positive — statistically significant at p < 0.05
  • Consistent with the apriori classical simulator prediction (4.5–9.6%)

New Modules — Error Mitigation & Pulse Shaping

  • GUESS symmetry decay ZNE — physics-informed error mitigation using the XY Hamiltonian's conserved total magnetisation, Rust fit + batch extrapolation (Oliva del Moral et al., arXiv:2603.13060)
  • DynQ qubit mapper — topology-agnostic placement via Louvain community detection on calibration-weighted QPU graphs, Rust quality scoring (Liu et al., arXiv:2601.19635)
  • ICI pulse sequences — Pontryagin Maximum Principle optimal three-segment STIREP protocol with Lindblad decay simulation (Liu et al., 2023)
  • (α,β)-hypergeometric pulse shaping — unified adiabatic pulse family via Gauss ₂F₁, subsumes Allen-Eberly, STIRAP, and Demkov-Kunike (Ventura Meinersen et al., arXiv:2504.08031)

Rust Engine & FFI Hardening

  • 36 Rust exported functions (up from 22), all with PyResult<T> boundary validation
  • 44× Rust speedup for hypergeometric envelope via custom ₂F₁ series expansion and rayon parallelisation
  • New Rust modules: validation.rs (16 unit tests), symmetry_decay.rs, community.rs, pulse_shaping.rs
  • Inner/outer function pattern for testability without Python context
  • Release profile: LTO fat, opt-level 3, codegen-units 1, strip debuginfo

Earlier v0.9.5 Additions (March 2026)

  • Multi-Scale QEC (concatenated surface codes, 5 SCPN domains)
  • Free Energy Principle (Friston 2010 variational formulation)
  • Ψ-field lattice gauge theory (U(1) compact gauge, HMC)
  • Knm validation complete across 5 physical systems
  • Dynamic Coupling Engine (Quantum Hebbian Learning)
  • Tests: 2,715 → 4,828 collected; Python modules: 165 → 201

v0.9.4

March 2026

Highlights

  • IBM Heron r2 hardware validation campaign (33 jobs, 176K+ shots)
  • Bell inequality violation: S = 2.165 (>8σ)
  • QKD QBER = 5.5% (below BB84 threshold)
  • VQE 0.05% ground state error
  • 3 novel synchronisation witnesses
  • DLA parity theorem: dim = 22N−1 − 2
  • FIM investigation series (34 notebooks)
  • Cross-repo bridges (sc-neurocore, SSGF)

v0.9.3

February 2026

Highlights

  • QSNN subpackage (7 modules): quantum spiking neural networks
  • Trapped-ion backend with heating/dephasing models
  • Circuit cutting for large systems
  • GPU offload via CuPy + JAX
  • QAOA-MPC for power grid control
  • VQLS Grad-Shafranov solver for ITER

v0.9.2

January 2026

Highlights

  • Rust engine (PyO3): Hamiltonian 5,401× faster
  • Error mitigation suite: ZNE, PEC, DD, Z2
  • Identity subpackage: VQE attractor, coherence budget
  • Cryptography: BB84, Bell tests, topology-authenticated QKD
  • QEC: toric code, surface code, repetition code UPDE

v0.9.0 – v0.9.1

December 2025 – January 2026

Foundation

  • Core Kuramoto-to-quantum compiler
  • Trotter, VQE, ADAPT-VQE implementations
  • Analysis subpackage: QFI, persistent homology, OTOC
  • Bridge subpackage: Knm → Hamiltonian
  • IBM Quantum runner (basic)
  • CI/CD pipeline: lint, test, coverage, security
  • MkDocs documentation site