Pith Number

pith:PJMYBJYP

pith:2026:PJMYBJYPGUIQMPMTH5AMWZJW54

not attested not anchored not stored refs pending

Multipartite Bell-GHZ nonclassicality from interwoven frustrated down-conversion

Konrad Schlichtholz, Marcin Markiewicz, Marek \.Zukowski, Pawe{\l} Cie\'sli\'nski

A multi-observer extension of interwoven frustrated parametric down-conversion violates a lifted Clauser-Horne Bell inequality through controllable interference of multi-pair emissions.

arxiv:2602.18381 v3 · 2026-02-20 · quant-ph

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\usepackage{pith}
\pithnumber{PJMYBJYPGUIQMPMTH5AMWZJW54}

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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

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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 extend this scheme to a multi-observer configuration and show that it violates a lifted Clauser-Horne Bell inequality in a scenario where the local PDC processes at the measurement stations implement on/off measurement settings.

C2weakest assumption

The violation originates from interference between multi-pair emissions in the source crystals and in the local PDCs, which becomes observable only when the local pump powers are included as controllable parameters.

C3one line summary

A multi-observer configuration of interwoven frustrated down-conversion produces interference from multi-pair emissions that violates a lifted Clauser-Horne Bell inequality when local pump powers are treated as controllable parameters.

Receipt and verification

First computed	2026-05-21T02:04:59.444285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a5980a70f3511063d933f40cb6536ef14c80495a1172e851f5a5e2f498a3302

Aliases

arxiv: 2602.18381 · arxiv_version: 2602.18381v3 · doi: 10.48550/arxiv.2602.18381 · pith_short_12: PJMYBJYPGUIQ · pith_short_16: PJMYBJYPGUIQMPMT · pith_short_8: PJMYBJYP

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/PJMYBJYPGUIQMPMTH5AMWZJW54 \
  | 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: 7a5980a70f3511063d933f40cb6536ef14c80495a1172e851f5a5e2f498a3302

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53392b165fe997d762df848e843d3c984a07a28efb6f3d96f1c9678821d8042a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-02-20T17:41:45Z",
    "title_canon_sha256": "f2e18a24c413dc623511689babba5a9254f6dc01a64071e2a5aed57b7c466fe3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.18381",
    "kind": "arxiv",
    "version": 3
  }
}