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Cross-experiment Selene benchmark suite

Every major experiment in this stack, re-run end to end through one harness and scored on a common scale: Simon's hidden-shift search, the ADAPT-GQE composed excitation, ethylene QPDE, the Floquet native port, the NHS discharge QUBO and the feed-forward conditional gate. Each experiment keeps its own accuracy definition — the fidelity column is that quantity normalised onto 0–1 against its exact or analytic reference.

verdict verifiedbenchmark_suite_complete3/3 criteria

Each criterion below is recomputed from the committed rows by quantum/verdicts.py; this chip reads the result rather than restating it.

  • passevery_experiment_scored

    Every experiment in the suite produced a score.

    measured 6 · threshold 6

  • passnothing_missing

    No experiment is missing from the aggregation.

    measured 0 · threshold 0

  • passfidelities_physical

    Every reported ideal fidelity lies in [0, 1].

    measured [] · threshold []

Experiments
6/6
Cells
474
Mean fidelity
99.20%
Worst 1x-H2 loss
8.3%

Results

Click a column header to sort; click a row to expand its raw metric.

ExperimentQubitsShots/cell
G4Feed-forward conditional gate25400099.03%99.70%0.30%12.3s
G16Ethylene QPDE (evolution-time trick)220409698.76%94.70%1.27%2.5s↺
G20Mixed-field Ising Floquet native port638451299.76%96.45%3.32%2.5s↺
G21ADAPT-GQE composed H2 UCCSD excitation2251297.66%94.92%4.89%6.7s
G22NHS discharge-flow QUBO (QAOA p=1)1236512100.00%91.73%8.27%3.9s↺
G23Simon's hidden-shift search6-1027256100.00%99.18%0.82%2.5s↺

Methodology

  • Fidelity. Each experiment reports a different physical quantity — Hartree, a subharmonic peak, a probability deviation, a QUBO energy. The suite maps each onto agreement with its exact reference in 0–1 and keeps the raw number in the expanded row.
  • Noise. One H2-class depolarizing model everywhere: p1q = 0.00003, p2q = 0.00129, pmeas = 0.00135. QPDE, Floquet and Simon already carry full ladders; the feed-forward, ADAPT and discharge rows are probed by the suite at ideal / 1× / 5×. Degradation compares circuit fragility, not device quality — the circuits differ in depth and width.
  • Runtime. Selene emulator wall-clock seconds inside the build sandbox, not Quantinuum hardware time. Every driver is resumable, so a row marked ↺ was re-scored against a warm per-row cache rather than swept cold; use runtimes comparatively only.
  • Reproduce. Run python3 -m quantum.benchmark.runner then python3 -m quantum.benchmark.aggregate. The suite caches one JSON per experiment and re-emits src/data/demos/benchmark_suite.json.

Generated 2026-08-13T07:20:03+00:00 · Quest state-vector · TKET compile lane · back to the frontier map

Arun Nadarasa · Refutation-first research notebook · Selene emulator runs, source open
Credit is aspirational until independently verified · © 2026