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PreprintCC BY 4.0arXiv

Auditing Syndrome-to-Decoder Mappings for Repetition, Surface, CSS, and Digitized-GKP Interfaces

  • Dennis Delali Kwesi Wayo
  • Chinonso Onah
  • Rodrigo Alves Dias
  • Leonardo Goliatt
  • Sven Groppe
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Abstract

Quantum error-correction experiments increasingly require a verified interface between measured syndrome bits and decoder-native correction requests. We report a four-branch syndrome-to-decoder mapping audit spanning a five-data-qubit repetition code, a distance-five surface Z-check interface, a compact Steane CSS benchmark, and a digitized-GKP proxy. For the surface interface, an independent noiseless interpreter verifies 40/40 single-X syndrome columns and data-bit round trips, while a reversed-register negative control fails for all 40 targets. Sampled hardware and local-noise streams are then analyzed with exact binary minimum-weight representatives to separate mapping validity from noisy localization. The results establish a narrow interface-conformance claim, not a decoder benchmark, threshold estimate, or logical-QEC demonstration.

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Cite

BibTeXRIS
BibTeX
@misc{wayo2026auditing,
  title = {{Auditing Syndrome-to-Decoder Mappings for Repetition, Surface, CSS, and Digitized-GKP Interfaces}},
  author = {Dennis Delali Kwesi Wayo and Chinonso Onah and Rodrigo Alves Dias and Leonardo Goliatt and Sven Groppe},
  howpublished = {arXiv},
  year = {2026},
  month = oct,
  doi = {10.48550/arxiv.2607.19447},
  eprint = {2607.19447},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2607.19447},
  note = {CC BY 4.0},
}
RIS
TY  - UNPB
TI  - Auditing Syndrome-to-Decoder Mappings for Repetition, Surface, CSS, and Digitized-GKP Interfaces
AU  - Dennis Delali Kwesi Wayo
AU  - Chinonso Onah
AU  - Rodrigo Alves Dias
AU  - Leonardo Goliatt
AU  - Sven Groppe
PY  - 2026
DA  - 2026/10/12
PB  - arXiv
DO  - 10.48550/arxiv.2607.19447
UR  - https://arxiv.org/abs/2607.19447
AB  - Quantum error-correction experiments increasingly require a verified interface between measured syndrome bits and decoder-native correction requests. We report a four-branch syndrome-to-decoder mapping audit spanning a five-data-qubit repetition code, a distance-five surface Z-check interface, a compact Steane CSS benchmark, and a digitized-GKP proxy. For the surface interface, an independent noiseless interpreter verifies 40/40 single-X syndrome columns and data-bit round trips, while a reversed-register negative control fails for all 40 targets. Sampled hardware and local-noise streams are then analyzed with exact binary minimum-weight representatives to separate mapping validity from noisy localization. The results establish a narrow interface-conformance claim, not a decoder benchmark, threshold estimate, or logical-QEC demonstration.
ER  -