S1e IBM Policy-Sweep Confirmatory Repeat¶
Date: 2026-05-20
Backend: ibm_kingston
Experiment ID: s1e_policy_sweep_confirmatory_repeat_2026-05-20
Parent experiment: s1_dynamic_feedback_preregistration_2026-05-06
Artefacts¶
- Readiness:
data/s1_feedback_loop/s1e_xy_observable_readiness_ibm_kingston_20260520T140919Z.json - Readiness SHA-256:
80b78f3deafae9465e1f057be5fe20048a82a28330b69028cc481e829edb9fed - Raw counts:
data/s1_feedback_loop/s1e_xy_observable_raw_counts_ibm_kingston_20260520T140919Z.json - Raw counts SHA-256:
99d97d60ce83949100ef52f6ead274776f49515990672d17fd91074b793a38ea - Analysis:
data/s1_feedback_loop/s1e_xy_observable_analysis_ibm_kingston_20260520T140919Z.json - Analysis SHA-256:
4f7e106e2af8e42aa74c9c07d66032bc76a78a936c499370c56fcef8c32ad522
Purpose¶
S1e is the confirmatory statistical repeat for the S1d policy-direction sweep.
It tests whether the large positive YYI response in the
current_shallow_positive policy reproduces at higher repetitions, or whether
it was a calibration-window fluctuation.
The repeat keeps the same one-round shallow dynamic body and the same three
policy variants as S1d, but increases repetitions from 3 to 5.
Readiness¶
All three policy variants passed the readiness gate on ibm_kingston.
| Variant | Rounds | Correction angle | Base gain | Max transpiled depth | Estimated QPU seconds |
|---|---|---|---|---|---|
current_shallow_positive |
1 | 0.06 |
0.4 |
237 |
40.0 |
polarity_flipped |
1 | -0.06 |
0.4 |
237 |
40.0 |
weak_positive |
1 | 0.03 |
0.2 |
237 |
40.0 |
Total estimated QPU seconds: 120.0 under the 130.0 second ceiling.
Execution¶
The 24 IBM jobs completed on ibm_kingston:
d86s140p0eas73dlcumg, d86s160p0eas73dlcuq0,
d86s185g7okc73elhp30, d86s1cqs46sc73f7dam0,
d86s1eh789is73903dtg, d86s1g9789is73903dvg,
d86s1i2s46sc73f7dar0, d86s1jop0eas73dlcva0,
d86s1n8p0eas73dlcveg, d86s1p8p0eas73dlcvh0,
d86s1qp789is73903eg0, d86s1sqs46sc73f7db90,
d86s1ugp0eas73dlcvqg, d86s20dg7okc73elhq0g,
d86s220p0eas73dld020, d86s241789is73903es0,
d86s25gp0eas73dld07g, d86s278p0eas73dld09g,
d86s29h789is73903f3g, d86s2bas46sc73f7dbt0,
d86s2d1789is73903fc0, d86s2ep789is73903fe0,
d86s2ggp0eas73dld0og, d86s2i1789is73903fqg.
The first analysis file was generated before the s1e alias was routed through
the grouped policy-sweep packager. The final raw-count and analysis artefacts
regroup the same completed jobs without resubmission.
Results¶
Feedback minus matched open-loop control by sorted direct-XY observable row:
| Variant | IXX | IYY | XXI | YYI | Mean signed | Mean absolute |
|---|---|---|---|---|---|---|
current_shallow_positive |
-0.0035156250 |
0.0082031250 |
-0.0488281250 |
0.1824218750 |
0.0345703125 |
0.0607421875 |
polarity_flipped |
-0.0429687500 |
-0.0406250000 |
-0.0281250000 |
0.0167968750 |
-0.0237304688 |
0.0321289063 |
weak_positive |
-0.0074218750 |
0.0042968750 |
-0.0105468750 |
-0.0406250000 |
-0.0135742187 |
0.0157226563 |
Interpretation¶
S1e confirms that the S1d YYI response in current_shallow_positive is not a
single-run artefact at the observed scale: S1d measured YYI = 0.1848958333,
and S1e measured YYI = 0.1824218750.
The result still does not promote the full feedback law as robustly beneficial.
The favourable response is channel-specific: current_shallow_positive remains
negative in IXX and XXI, slightly positive in IYY, and strongly positive
in YYI. The polarity-flipped and weak-positive policies do not reproduce the
same mean-signed improvement. The safe claim is therefore a reproducible
channel-specific policy sensitivity in the direct-XY sector, not
backend-general feedback control.