5184deterministic rowsUNKNOWNInspect metric contract
6topic-specific evidence nodesUNKNOWNInspect metric contract
0live solver runsUNKNOWNInspect metric contract
SIMULATION / SA-SENS-SNSPD-001
Superconducting photon detector current-crowding and evidence map
SNSPD evidence map
Trace declared geometry and current distribution through edge/constriction pressure, illuminated or dark context, mechanism ambiguity, metrology lineage, uncertainty, contradictions, and owned replacement evidence without issuing detector design or operating guidance.
EXPLORE
Start with the observable.
Use this page when the simulation is the primary artifact. The linked lesson explains the concept; the linked lab keeps the visual replay surface available.
- Hold geometry, distribution, constriction, event context, mechanism, metrology, and uncertainty fixed, then sweep the four normalized current-loading states.
- Compare local edge loading, signed margin, photon-trigger susceptibility, dark-activation pressure, observable-event, timing-lineage, attribution, and evidence-readiness scores without treating any score as a physical detector metric.
- Inspect contradiction flags when a redistribution state lacks balancing geometry, balancing geometry lacks redistribution, high loading lacks constriction evidence, or a nominal envelope exceeds the metrology lineage.
- Use the decision gate to name the owned spatial, detector, optical, background, timing, calibration, uncertainty, and review evidence required to replace each proxy.
BROWSER INTERACTIVE LAB
Filter the saved CSV. Inspect matching replay rows.
No server solver is running here. The browser filters a precomputed table and redraws the plot locally.
Loading replay rowsReading the saved CSV in this browser.
local edge loading proxysigned edge margin proxyphoton trigger susceptibility scoredark activation pressure scoreevent attribution confidence scoreevidence readiness score
Each metric is normalized independently for shape inspection. Vertical positions do not compare magnitude across metrics.
n/alocal edge loading proxy
n/asigned edge margin proxy
n/aphoton trigger susceptibility score
n/adark activation pressure score
n/aevent attribution confidence score
n/aevidence readiness score
Change one or more controls to find a saved row. No unrelated CSV value is substituted.
| case id | geometry label | current state label | distribution label | constriction label | event context label | detection regime label | metrology lineage label | local edge loading proxy | photon trigger susceptibility score | dark activation pressure score | contradiction flags | decision gate | next safe check |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Loading saved replay rows... | |||||||||||||
RUN CARD
Conditions before conclusions.
The browser filters a saved CSV. It does not run superconducting physics, optical, electrothermal, circuit, cryogenic, fabrication, calibration, or instrument models, and it cannot recommend a bias, geometry, process, detector, product, or qualification action.
Primary knobs
- geometry and normalized current-loading state
- current-distribution and constriction evidence state
- illuminated or dark event context
- thermal-hotspot, vortex-assisted, or mixed mechanism proxy
- count, calibrated-flux, or time-correlated metrology lineage
- declared nominal or expanded uncertainty envelope
Saved outputs
- dimensionless local-loading, edge-margin, and barrier proxies
- photon-trigger, dark-activation, and observable-event scores
- timing-lineage, attribution, and evidence-readiness scores
- contradiction flags, decision gate, and next owned evidence check
EXPORT
Download the public artifacts.
These exports are the supported public files for review. PDK files and restricted third-party material are not redistributed.
SNSPD evidence-map CSV
/data/superconducting-photon-detector-current-crowding-evidence-map-v102.csv
Open file ->Typed web JSON
/data/superconducting-photon-detector-current-crowding-evidence-map-web-v1.json
Open file ->Model card
/data/superconducting-photon-detector-current-crowding-evidence-map-model-card-v1.md
Open file ->Metric contract
/data/superconducting-photon-detector-current-crowding-evidence-map-metric-contract-v1.json
Open file ->Source spine
/data/superconducting-photon-detector-current-crowding-evidence-map-source-spine-v1.json
Open file ->METHODS
How the number was made.
Methods are written for citation discipline: the extraction rule matters as much as the plotted value.
Generate the complete 4 x 4 x 3 x 3 x 2 x 3 x 3 x 2 Cartesian sweep with no random sampling, fitting, optimization, hidden state, or external device value.
Keep this method attached when reusing the figure or metric.
Use original dimensionless current-loading, barrier, event, timing-lineage, attribution, and evidence-readiness equations; none is a calibrated superconducting detector model.
Keep this method attached when reusing the figure or metric.
Force photon-trigger output to zero in dark-observation rows, emit contradictions when geometry, redistribution, constriction, loading, metrology, or uncertainty declarations disagree, and route every row to an owned-evidence gate.
Keep this method attached when reusing the figure or metric.
Keep six topic-specific claim maps and eleven official or primary source anchors separate from the generated numbers.
Keep this method attached when reusing the figure or metric.
LIMITS
What this page does not claim.
The MVP is useful because the limits are visible. These statements prevent a teaching simulation from being cited as silicon evidence.
Zero external numeric values, real measurement rows, copied publication results, copied device dimensions, process steps, equipment-control actions, operating-current recommendations, calibrated predictions, rankings, qualification actions, forecasts, or live server runs enter the dataset.
Carry this boundary into any derivative note, paper draft, or slide.
No instrument control or cryostat-control instruction is provided.
Carry this boundary into any derivative note, paper draft, or slide.
No fabrication recipe, detector operating recommendation, calibrated performance prediction, design recommendation, yield forecast, product comparison, qualification, or signoff action is provided.
Carry this boundary into any derivative note, paper draft, or slide.
A real claim requires owned spatial current/defect evidence, detector and readout records, traceable radiometry and timing, background separation, uncertainty and drift evidence, mechanism review, and accountable detector/metrology owners.
Carry this boundary into any derivative note, paper draft, or slide.
EVIDENCE
Trace the claim back to artifacts.
The evidence route remains the catalog-level browser; this page is the simulation-level reading card.
5184 rows covering the complete declared Cartesian sweep with no random sampling, optimization, fitting, or hidden state.
SA-SENS-SNSPD-001
6 topic-specific claim maps and 11 official, primary, metrology, timing, and uncertainty anchors.
SA-SENS-SNSPD-001
All generated coefficients are original dimensionless SemiAgora assumptions; source-reported scientific values remain outside the numeric model.
SA-SENS-SNSPD-001
Independent Cartesian, equation, dark-context, contradiction, zero-boundary, byte-identity, and SHA-256 verification is required in the canonical experiment folder.
SA-SENS-SNSPD-001
Source spine
These links anchor the public teaching model. They do not convert the replay into a qualified process recipe or signoff result.
NIST: wider superconducting photon detectors and edge-current redistributionCurrent-distribution, edge-defect, wide-strip, dark-event, and remaining-efficiency-evidence vocabulary anchor.Optica: intrinsic-performance limits of wider SNSPDsPrimary publication anchor for current redistribution and evidence boundaries; all generated coefficients are independent SemiAgora assumptions.arXiv: wider SNSPD intrinsic-limit preprint recordVersioned preprint lineage for the current NIST/Optica work; it supplies no numeric input to the model.APS: geometry-dependent critical currents in superconducting nanocircuitsGeometry and current-crowding mechanism vocabulary anchor without importing a critical-current model.AIP: experimental critical-current reduction from current crowdingExperimental-evidence anchor showing why geometry and constriction claims require owned measurements.APS: vortex-assisted photon and dark-count mechanismsMechanism-separation anchor for photon, dark, and vortex-assisted contexts without selecting a mechanism for any real detector.NIST: photon-counting detection-efficiency calibration comparisonPhoton-flux traceability, connector/coupling lineage, and calibration-comparison evidence anchor.NIST Quantum RadiometrySingle-photon source and detector measurement-chain and traceability anchor.NIST: superconductive nanowire single-photon detector technologyDetector-event, optical coupling, readout, reset, dark-count, and characterization vocabulary anchor.NIST: spatial dependence of SNSPD output-pulse delayTiming-lineage and spatial-nonuniformity evidence anchor without producing a jitter prediction.NIST Technical Note 1297: measurement uncertaintyMeasurand, standard uncertainty, combined uncertainty, expanded uncertainty, and reporting-lineage anchor.
Public execution boundary
No server-side live ngspice execution, uploads, accounts, payments, comments, newsletter signup, or job/event submissions are active on this page.