Antenna placement pilot. Closed case

Status (June 2026): Closed public record. Parallel multi-contexture runs on IBM Heron r2 · ibm_fez, with named job IDs. Active QPC architecture line: separability (ICC) and architecture program.

Leonardo multi-frequency antenna placement (mAPP): combinatorial one-hot sites with exactly k active antennas. Reference: arXiv:2511.15566. QPC polycontextural runs were compared to penalty-QAOA and constraint-preserving baselines on IBM Heron r2.

Plain English

What this test was: Leonardo mAPP antenna placement: pick exactly k antenna sites with one-hot constraints, on IBM Heron r2 · ibm_fez, vs penalty-QAOA baselines.
Why this page stays closed: The case brief required strict one-hot in raw shots. Measured strict rate: 0.0%. Job IDs stay on the record. Active architecture evidence is ICC.
What QPC measured: Parallel K=6 contextures reached ~23% argmax feasible on relaxed metrics. Strict one-hot on the case brief: 0.0%.
Where the architecture line lives: ICC / separability: separability results. Program hub: architecture program.

Primary metric

Feasible-placement rate: fraction of shots satisfying one-hot per site and exactly k active antennas. Secondary: coverage minus interference cost on feasible samples only.

IBM Heron r2 · ibm_fez summary (1024 shots, June 2026)

Method	Feasible %	Job ID (representative)
Penalty QAOA baseline	17.3%	`d8gsbm5v8cos73f3lnu0`
Constraint-preserving baseline	15.9%	`d8gsghtv8cos73f3lu6g`
QPC polycontextural	4.5–22.7%	`d8gsl09e8nrc73bgfh40` … `d8hd1cs2upec739ktbd0`
Strict case-brief acceptance (v3)	0.0%	`d8hi471e8nrc73bh90dg` …

Feasible rate depends on depth and decode policy. Circuit construction and mixer design under NDA.

What the jobs show

Parallel multi-contexture execution on IBM Heron r2 ran (representative jobs above).
Strict one-hot without classical repair: 0.0% on this case brief.
Separability ICC is the active falsifiable architecture line on the public site.

Architecture program →