A focused IBM Heron r2 program (June 2026). Quantum Polycontextural Computing (QPC) is a gate-level architecture: many logics co-resident in one circuit, coupled, measured once. The goal is demonstration and falsification on named jobs: ICC, Joint Structure, Cerrado, MCGS, E8.
Plain English
Flagship: Joint Structure Challenge. Six-level pre-registered ladder (ICC + merge failure). L1–L5 pass on IBM Heron r2 · ibm_fez. L6 is the open vendor dare.
Multiple objective contextures execute in parallel inside one quantum circuit, linked by transjunction gates while alternatives stay open. Then you measure once on the gate QPU.
Carbon, biodiversity, and social impact sit in that one IBM job. The ranking comes from the coupled state.
An independent review first treated stacked Hamiltonian layers as QPC. The lock is: parallel contextures in one circuit, coupled by transjunctions. After the true-parallel jobs and IBM IDs, the same review proposed a separability test: measure correlation that independent jobs miss.
We ran that test on IBM Heron r2 · ibm_fez and published the outcomes on the separability and JSC pages.
| Workstream | Question | Status | What it demonstrates |
|---|---|---|---|
| Separability (ICC) | Does one coupled job produce joint structure that three independent jobs cannot? | Demonstrated | One coupled job vs independent jobs. Toy 3/3 seeds; Cerrado n=12; Heron n=28 bio↔social boundary 0.098. |
| Cerrado portfolio | Can real Goiás carbon-credit data run as one polycontextural workflow? | Demonstrated | Same published metric, open data, auditable IBM jobs. One submission. Architecture stands on the ICC pages; KPI on the Cerrado compare page. |
| E8 lattice test | Can eight parallel certificate checks run as one coupled Heron r2 job? | Demonstrated | 152Q, one job d8o47bjqv2lc7389jo60. E8 is the known answer key. Plain-language report on site. |
We run two arms on the same IBM chip:
We compute inter-context correlation (ICC): do decisions on one objective line up with the next more than independent runs would?
| Test | ICC gap (coupled − separable) | Verdict |
|---|---|---|
| Toy instance (seeds 7, 11, 42) | 0.052 – 0.106 | Strong pass 3/3 |
| Cerrado real data n=12 | 0.088 | Pass |
| Cerrado Heron n=28 (mean) | 0.031 | Below mean threshold |
| Cerrado Heron n=28 (bio↔social boundary alone) | 0.098 | Heron-scale pass |
Value: This is the architecture signature. The hardware returned coupled quantum structure on named jobs.
Brazilian Cerrado: pick towns that jointly score carbon, biodiversity, and social impact (Ribeiro 2026, open GitHub data). Same portfolio formula as the paper.
d94mmrnu62ks73967jh0. See Cerrado compare.Value: Gate-native multi-objective execution with job IDs on file. Architecture on raw ICC; portfolio KPI on the compare page.
Three contextures with even / odd / bridge weight priors, motivated by the DFL lattice-gauge paper. IBM Heron r2 · ibm_fez: raw ICC gaps 0.349 · 0.243 · 0.131, 3/3. See MCGS.
Value: The same ICC stack on a new instance, auditable job IDs.
In 8D, the densest sphere packing (E8) was proved by Viazovska using several coordinated checks. QPC runs that computational pattern on IBM: eight parallel certificate contextures in one 152-qubit job. E8 is the known answer key.
d8o47bjqv2lc7389jo60Value: QPC’s multi-context architecture on a structured hard problem. Same idea as Cerrado’s three objectives, different domain. Plain-language explainer →
Compilation details, bridge wiring, and readout transforms stay with QPC. Contact readytogo@quantumpolycontextural.ai under NDA.
QPC runs a resilience stack after IBM jobs (readout correction, shot aggregation, optional extrapolation). Architecture evidence (ICC, Joint Structure Challenge, MCGS) stays on raw hardware counts. Customer-facing scores live on industry pilots with declared decoders. That is the two-lane split.
The add-on is documented here: QPC Noise Reduction Add-on. Partners under NDA: readytogo@quantumpolycontextural.ai.