Research Timeline

How SCPN-Quantum-Control got from classical simulator prototype to a hardware-confirmed DLA parity result, and what comes next.

Status — 2026-04-11

Currently blocked on IBM 180-minute promotional allocation

The Phase 1 DLA parity campaign completed successfully on ibm_kingston in April 2026. The follow-up Phase 2 campaign is prepared and tested, but requires a 180-minute Open Plan promotional allocation to become active on the account. This is being handled with Dr Berk Kovos (IBM Quantum Solutions Strategy Lead). Expected resolution: mid-April 2026.

In the meantime, work continues on paper drafting, website improvements, independent-replication preparation, and the cross-repo SCPN-Fusion-Core integration.

Past — Completed Milestones

2020–2024
SCPN classical framework developed
15+1 layer model, $K_{nm}$ coupling formulation, UPDE engine, Kuramoto-XY reduction for Layer 11–12. Python + Rust classical simulator. No hardware work yet.
2025-12
SCPN-Quantum-Control repository born
First Python package with a bridge from $K_{nm}$ to a Qiskit XY Hamiltonian. Initial scope: 4 subpackages (bridge, phase, analysis, hardware). Pre-release v0.1.0.
2026-02
First hardware campaign on ibm_fez
IBM Heron r2, 156 qubits. VQE ground state (4q), Kuramoto XY evolution (4q), qubit-scaling probe (6q), UPDE-16 snapshot (16q, depth 770). 33 jobs, 176,000+ shots. Confirmed the basic pipeline works but ran into the depth 250–400 coherence wall. v0.7.x series.
2026-03
Rust engine, novel algorithms, 5,401× speedups
PyO3 rewrite of the heavy paths: Hamiltonian construction, Pauli operations, Krylov, OTOC, Lindblad, Monte Carlo. GUESS symmetry-decay mitigation and DynQ qubit placement integrated. DLA parity theorem derived and coded into the classical simulator. 19 subpackages reached. v0.9.x series.
2026-04-09
IBM credit application, meeting with Berk Kovos
Applied for formal IBM Quantum credits to run a scaling campaign. Application declined (no academic affiliation). Dr Berk Kovos (IBM Quantum Solutions Strategy Lead) personally offered a 30-minute video call on 2026-04-10 to discuss the Open Plan 180-minute promotional path as an alternative.
2026-04-10
Phase 1 campaign on ibm_kingston — 342 circuits
Four sub-phases (phase1_bench, phase1_5_reinforce, phase2_exhaust, phase2_5_final_burn) executed back-to-back within the Open Plan cycle. 342 circuits at $n=4$, 8 Trotter depths, up to 21 repetitions per point. ICI pulse integrator and (α, β)-hypergeometric pulse family landed in the same window. Cycle exhausted after the final run.
2026-04-10
First hardware confirmation of DLA parity asymmetry
Analysis of the 342-circuit dataset via Welch's two-sample t-test per depth + Fisher's combined statistic. Result: 7 of 8 depths individually significant at $p < 0.05$, combined $p \ll 10^{-16}$. Mean asymmetry $(10.8 \pm 1.1) \%$ for $d \ge 4$, peak $+17.5 \%$ at $d = 6$. The observed magnitude falls inside the independent classical prediction band at large depth.
2026-04-10
Repository hygiene: gitleaks + custom vault scanner
Incident: FTP credentials were written to an internal coordination file. Caught by a pre-push manual audit (L4 defence layer). Fixed before any remote exposure. Two pre-commit hooks added in response: gitleaks 8.21.2 (generic secret scanner) and tools/check_secrets.py (custom vault-pattern scanner reading the local credentials vault at runtime).
2026-04-11
Full documentation refresh + short paper drafted
21 documentation surfaces refreshed (README, architecture, rust_engine, error_mitigation, pipeline_performance, contributing, hardware_guide, equations, API, quickstart, installation, test_infrastructure, changelog, roadmap, and so on). Short paper drafted at paper/phase1_dla_parity_short_paper.md for submission to Quantum Science and Technology or Physical Review Research.
2026-04-11
Website expansion — seven new pages
Dedicated Phase 1 results page with interactive Plotly plot. Reproducibility manifest with per-commit pinning. Three methodology deep-dives (GUESS, DLA parity, pulse shaping). Conceptual science primer. This timeline. Inline SVG architecture diagram on the overview page.

Now — In Progress

~ 2026-04-11 → 2026-04-14
Awaiting Berk Kovos’ response on promo allocation
Cloud ID was sent on 2026-04-10 21:53 CEST. Berk is investigating why the 180-minute promotional prompt did not appear on the dashboard automatically. Expected reply window: Monday or Tuesday, 14–15 April 2026.
~ 2026-04-11 onward
Short paper polish + reviewer-ready figures
Tightening the prose of paper/phase1_dla_parity_short_paper.md and preparing the exact figure set for submission. Initial target: Quantum Science and Technology Letter. Alternative: Physical Review Research.
~ 2026-04-11 onward
Cross-repo wiring with SCPN-Fusion-Core
Same XY compiler bridge; ITER tokamak mode-coupling predictions will reuse the GUESS calibration when Phase 2 data lands.

Next — Planned

~ 2026-04 / 2026-05
Phase 2 campaign on ibm_kingston
Ready to run once the 180-minute allocation is active. ~1,200 circuits, 7 sub-experiments A–G. Extensions: higher statistics at $n=4$ (30 reps per point, 10 depths), first scaling law at $n \in \{6, 8, 10, 12\}$, dedicated GUESS calibration sub-sweep with circuit folding factors 1, 3, 5. Full protocol →
~ 2026-04 / 2026-05
Independent replication on ibm_marrakesh
Same 342-circuit protocol on a second Heron r2 device, within the same 180-minute allocation. Rules out any device-specific calibration artefact in the Phase 1 result.
~ 2026-05
Phase 2 results page on anulum.li
New phase2-results.html to live alongside the Phase 1 page. Same format: plain-language summary, figures, full Welch table, interactive plot, reproducibility block, BibTeX.
~ 2026-05 / 2026-06
Paper submission
Submit the short paper to Quantum Science and Technology or Physical Review Research. Aim: open-access, AGPL code release as supplementary material, data as Zenodo deposit.
~ 2026-06 / 2026-07
Phase 3 scaling law
Closed-form model of the asymmetry $A(n, d)$ as a function of qubit count and depth, fit to the Phase 2 data. Predictive, not descriptive.
~ 2026-Q3
Joint paper with CNRS Toulouse (Masquelier group)
Collaboration on applying the SCPN Kuramoto-XY framework to neural synchronisation analysis in the SHD spiking-heartbeat dataset. Cross-disciplinary validation of the framework outside quantum hardware.

Later — Speculative

Neuralink follow-up. A brief on the SCPN Kuramoto-XY framework as a basis for multi-channel neural decoding has been prepared; the follow-up is pending a response from DJ Seo. Target: compression + event-driven RTL + decoders.

Fault-tolerant scaling. The current depth 250–400 coherence wall on Heron r2 is a hard limit for NISQ-era experiments. Phase 4 (2027+) will target logical-qubit hardware — either Heron r3 with biased-noise surface codes or trapped-ion processors — to take the parity asymmetry measurement into regimes where the classical simulator can no longer keep up.

SCPN meta-papers. The SCPN Master Publications (Zenodo DOI 10.5281/zenodo.17419678) are the framework-level companion to this engineering work. Future papers in that series will integrate the SCPN-Quantum-Control hardware results as experimental checks on the layer stack.

Related Pages

Phase 1 Results →
The current headline scientific result in full detail.
Changelog →
Version-by-version code changes, release notes.
Reproducibility →
Per-commit pinning for every result listed here.