Pith Number

pith:OOM3DE7J

pith:2026:OOM3DE7JOVZWBSPIOGVUFWPESU

not attested not anchored not stored refs pending

AI-Enabled Decoding of Qubit Loss for Quantum Error-Correcting Codes

Hui Zhai, Jiale Dai, Linghui Chen, Tao Zhang, Xiaotian Nie, Yuqing Wang, Zhongyi Ni

A graph neural network decoder corrects both Pauli errors and qubit loss locations from syndrome histories with higher accuracy than matching algorithms.

arxiv:2604.14269 v2 · 2026-04-15 · quant-ph

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\usepackage{pith}
\pithnumber{OOM3DE7JOVZWBSPIOGVUFWPESU}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

Our decoder achieves significantly higher logical accuracy than both the traditional minimum-weight perfect matching (MWPM) algorithm and even delayed-erasure MWPM decoders that use qubit loss information from the final round as input. Our decoder can also identify more than 90% of loss locations after accumulating stabilizer measurements over the subsequent ten rounds.

C2weakest assumption

That the spatiotemporal correlations present in simulated syndrome histories are sufficient for the STGNN to reliably separate qubit loss events from Pauli errors and that the learned model will generalize to real hardware noise without retraining.

C3one line summary

An STGNN decoder outperforms standard and delayed-erasure MWPM algorithms in logical accuracy while recovering more than 90% of qubit loss locations after ten measurement rounds.

Receipt and verification

First computed	2026-05-26T02:04:10.882969Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7399b193e9757360c9e871ab42d9e4951a8991c6396d239d97328b1f8b6ca786

Aliases

arxiv: 2604.14269 · arxiv_version: 2604.14269v2 · doi: 10.48550/arxiv.2604.14269 · pith_short_12: OOM3DE7JOVZW · pith_short_16: OOM3DE7JOVZWBSPI · pith_short_8: OOM3DE7J

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/OOM3DE7JOVZWBSPIOGVUFWPESU \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 7399b193e9757360c9e871ab42d9e4951a8991c6396d239d97328b1f8b6ca786

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3320ae1e6309210d365a42f66c0a830b46238834e1dbff078ce1b656becd7e38",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-04-15T17:59:35Z",
    "title_canon_sha256": "a6123092f7d1e6c7b891b0a61a51b5f0b4c6cc2cd0976bfd236319bf4ca554b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.14269",
    "kind": "arxiv",
    "version": 2
  }
}