Pith Number

pith:VUAFGQRA

pith:2026:VUAFGQRAKU4ACROE5FZAYZSU2O

not attested not anchored not stored refs pending

Quantum metrology via partial quantum error correction

Sisi Zhou, Yinan Chen, Zongyuan Wang

Encoding sensing probes as superpositions of energetically distinct states in a quantum code allows only partial error correction to suppress local noise and retain super-SQL precision.

arxiv:2605.08341 v2 · 2026-05-08 · quant-ph

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\pithnumber{VUAFGQRAKU4ACROE5FZAYZSU2O}

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Record completeness

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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

We introduce a new method for error-corrected quantum metrology where only partial quantum error correction (QEC) is needed to suppress local noise and maintain the probe states' super-standard-quantum-limit (super-SQL) sensing performance.

C2weakest assumption

That encoding the probe into superpositions of energetically different states of the underlying quantum code allows error correction with only a subset of checks to suppress noise both before and after phase imprinting.

C3one line summary

Partial QEC on superpositions of code states suppresses local noise in quantum metrology with fewer checks than full QEC, achieving p to the power floor((l+1)/2) suppression for weight-l noise.

Formal links

2 machine-checked theorem links

Cited by

2 papers in Pith

Quantum Fisher Information under decoherence with explicit wavefunctions

Precision limits for time-dependent quantum metrology under Markovian noise

Receipt and verification

First computed	2026-06-12T00:07:49.346865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad0053422055380145c4e9720c6654d3b68d448d6553b8f47f69c90bbbba094d

Aliases

arxiv: 2605.08341 · arxiv_version: 2605.08341v2 · doi: 10.48550/arxiv.2605.08341 · pith_short_12: VUAFGQRAKU4A · pith_short_16: VUAFGQRAKU4ACROE · pith_short_8: VUAFGQRA

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VUAFGQRAKU4ACROE5FZAYZSU2O \
  | 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: ad0053422055380145c4e9720c6654d3b68d448d6553b8f47f69c90bbbba094d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a38df7a926010125b7a8fc5c52b8d89b9408a9e355e82aac70bb6d101bf41c8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-08T18:00:06Z",
    "title_canon_sha256": "07a93b7d9f5849194f969cd378b60862627baa31fa3fbb9c30f5b6e587395b4b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.08341",
    "kind": "arxiv",
    "version": 2
  }
}