Staging installation · synthetic data · not a permanent scientific record · 673dc18 · Merge dev taxonomy work into staging
Circuit Bench

Circuit revision

Rotated surface-code memory d=5

Published

Description

A small synthetic memory circuit for interface development.

Revision note: first revision

Noise model
Fixed phenomenological noise
Priors randomised
No
Code distance upper bound
5
Circuit distance upper bound
5
Rounds
5
Detectors
120
Errors
480
Observables
1
CSS
Yes
X only
Yes
Z only
No
Files and DEM construction Schema circuit/0.1

Files

RoleFileBytesSHA-256
Sampling circuit demo-memory.stim 42 eee423733e6e058c45d5589f27dbf81a13c896f2a9289e1812ab1e2f4703e6da
Detector error model demo-memory.dem 19 60373469d83a006ab923d2723051a1f8fb03df0ac408fb5625bb95ce6d85d76e
Manifest demo-memory-manifest.json 37 cc442536702d8cc34a2bee4db67eccf4c2cc81206e1e069b805a491ee5d9a738

Detector error model construction

Stim version
1.15.0
Method
stim.Circuit.detector_error_model
Decompose errors
false
Flatten loops
false
Allow gauge detectors
false
Approximate disjoint errors
No
Ignore decomposition failures
false
Block remnant edges
false
Record history 3 events · revisions and publication decisions
  1. Submitted Casey Circuit Submission event synthesised during history migration. Rotated surface-code memory d=5
    Event details
    Sequence
    1

    Structured details

    {
  "migration_inferred": true,
  "projected_state": "published"
}

    Canonical submitted snapshot

    {
  "data": {
    "migration_inferred": true,
    "record_id": "225a3430-3018-5c63-835f-7cdad8daec87",
    "schema_release_id": "897d7453-dc92-538f-b1f8-7ef49c6235be"
  },
  "schema": {
    "record_type": "circuit",
    "version": "0.1"
  }
}
  2. Approved System (migration_backfill) Historical approval actor was not recorded. Rotated surface-code memory d=5
    Event details
    Sequence
    2

    Structured details

    {
  "approval_route": "legacy_unknown",
  "migration_inferred": true
}
  3. Published System (migration_backfill) Publication event synthesised from the lifecycle projection. Rotated surface-code memory d=5
    Event details
    Sequence
    3
    Caused by
    Event 2

    Structured details

    {
  "migration_inferred": true
}

Decoder results on this circuit

Scripted query (OData 4.01 subset)
Syntax and field reference
Decoding algorithm filters, 0 applied
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Circuit Bench
Machine filters, 0 applied

The current population contains 8 published results. Its filters, query, plot, and sort describe the same population.

Show plotter Hide plotter 8 /8 points
LER upper 95% @ 5% acceptance against t₁₀₀₀ 8 of 8 results plotted.
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Scatter plot of LER upper 95% @ 5% acceptance against t₁₀₀₀; x is linear and y is linear. Points retain the caller's result order. Stored intervals are displayed as bars. 8 of 8 results have plottable axis values. 0 2 · 107 4 · 107 6 · 107 8 · 107 0.1 0.2 0.3 t₁₀₀₀ ns · linear LER upper 95% @ 5% acceptance probability · linear
Point details and field definitions

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x-axis
t_1000_ns — t₁₀₀₀ (ns), linear scale, lower is better. Definition
y-axis
score_ler_upper_95_at_5pct_acceptance_v0_1 — LER upper 95% @ 5% acceptance (probability), linear scale, lower is better. Definition
uncertainty
Whisker bars. 0 x-axis and 8 y-axis stored intervals are available in this plotted population. Only complete lower/upper intervals stored under the selected score definition are drawn; Circuit Bench does not infer missing errors.
Plot data
Tabular data for this plot (8 rows)
LER upper 95% @ 5% acceptance against t₁₀₀₀; omitted points are reported above.
Record Result UUID t₁₀₀₀ (ns) LER upper 95% @ 5% acceptance (probability)
Clear Matcher v0.2 71f8618f-d8b9-5cd8-bae7-340695f97fc1 0.15 probability
Clear Matcher v0.2 ee357ba5-20d9-5864-aecc-a7aa214a74a5 0.11 probability
Neural Syndrome v0.1 6bcc4e9b-f032-5d54-8de2-e07546bd61d5
Sparse BP+OSD v0.1 341b6853-2f8a-5865-9710-4f5c14908873 0.1 probability
Streaming Cluster v0.1 c17e126d-185f-51e9-b309-f33011a18dad 0.32 probability
Sweep Cellular v0.1 fd4c816f-6b07-5967-a217-d2f64bdc365b 0.27 probability
Tensor Trail v0.1 113eef3f-a03d-5d60-a870-7c51f6a2016b
Union-Find Sprint v0.1 6d190104-5625-561d-9ad8-b9d959523c7d 0.23 probability
8 records Sort: Decoder ascending

Table view options

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Visible columns
Decoder 1↑ Version Algorithm tags Machine type Machine Shots LER upper 95% @ 5% t₁₀₀₀ (ns) Evaluator scores Reproduction Published
Clear Matcher0.2CPUdemo-eight-core-cpu100,000 0.15 probability Brier loss upper 95% bound: 2.3 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 0.15 probabilityDecoder-author submitted/approved31 Aug 2026, 12:48 a.m.
Clear Matcher0.2CPUdemo-eight-core-cpu10,000 0.11 probability LER upper 95% bound at 5% acceptance: 0.11 probabilityIndependent reproduction31 Aug 2026, 7:03 p.m.
Neural Syndrome0.1GPUdemo-single-gpu100,000 Brier loss upper 95% bound: 1.56 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 7.6 · 10⁻² probabilityIndependent reproduction31 Aug 2026, 1:12 a.m.
Sparse BP+OSD0.1GPUdemo-single-gpu100,000 0.1 probability Brier loss upper 95% bound: 1.8 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 0.1 probabilityIndependent reproduction31 Aug 2026, 1:04 a.m.
Streaming Cluster0.1FPGAdemo-fpga-board100,000 0.32 probability Brier loss upper 95% bound: 4 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 0.32 probabilityIndependent reproduction31 Aug 2026, 1:36 a.m.
Sweep Cellular0.1FPGAdemo-fpga-board100,000 0.27 probability Brier loss upper 95% bound: 3.5 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 0.27 probabilityIndependent reproduction31 Aug 2026, 1:20 a.m.
Tensor Trail0.1GPUdemo-single-gpu100,000 Brier loss upper 95% bound: 1.4 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 6 · 10⁻² probabilityIndependent reproduction31 Aug 2026, 1:28 a.m.
Union-Find Sprint0.1CPUdemo-eight-core-cpu100,000 0.23 probability Brier loss upper 95% bound: 3.1 · 10⁻² probability; LER upper 95% bound at 5% acceptance: 0.23 probabilityIndependent reproduction31 Aug 2026, 12:56 a.m.