Pith Number

pith:3IENEYAO

pith:2026:3IENEYAODS54OABGSTH44POXYT

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Light-Cone Structure of Propagation of Entanglement

Israel Michael Sigal

Bipartite quantum systems with localized couplings exhibit an effective light-cone for entanglement propagation.

arxiv:2604.27170 v2 · 2026-04-29 · quant-ph · math-ph · math.FA · math.MP

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\usepackage{pith}
\pithnumber{3IENEYAODS54OABGSTH44POXYT}

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4 Citations 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

For a wide class of bipartite systems with localized couplings, we establish existence of an effective light-cone for propagation of entanglement. This result yields a hard lower bound on the time it takes, under ideal conditions (no loss, no decoherence), to transport entanglement to a distant location.

C2weakest assumption

The quantum systems belong to a wide class of bipartite systems whose couplings are localized, and the analysis assumes ideal conditions with no loss or decoherence.

C3one line summary

Existence of an effective light-cone for entanglement propagation in bipartite systems with localized couplings, yielding a hard lower bound on transport time under ideal conditions.

Receipt and verification

First computed	2026-06-10T01:11:00.800007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da08d2600e1cbbc7002694cfce3dd7c4ff1ca1ef8a9d8c0afbe424d0aa3c780f

Aliases

arxiv: 2604.27170 · arxiv_version: 2604.27170v2 · doi: 10.48550/arxiv.2604.27170 · pith_short_12: 3IENEYAODS54 · pith_short_16: 3IENEYAODS54OABG · pith_short_8: 3IENEYAO

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/3IENEYAODS54OABGSTH44POXYT \
  | 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: da08d2600e1cbbc7002694cfce3dd7c4ff1ca1ef8a9d8c0afbe424d0aa3c780f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e57204abb44f6dcf4dccb48d9c8f8f51af6817db9ba977e9ba5c035740e88b9",
    "cross_cats_sorted": [
      "math-ph",
      "math.FA",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-04-29T20:19:04Z",
    "title_canon_sha256": "b1b16840cc90a0137785371607050313d3c4b7b998f56534b570c87d6f2a7061"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.27170",
    "kind": "arxiv",
    "version": 2
  }
}