Changelog

Release history for SCPN-Quantum-Control.

v0.9.5 Latest

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