Pith Number

pith:AEZJBBXT

pith:2025:AEZJBBXTM6PZPDIIXFP7KUDQQR

not attested not anchored not stored refs pending

Random phase approximation-based local natural orbital coupled cluster theory

Aamy Bakry, Hong-Zhou Ye, Ruiheng Song, Xiliang Gong

RPA replaces MP2 as low-level theory in LNO-CC to match accuracy on gapped systems while converging faster for metals.

arxiv:2601.00131 v2 · 2025-12-31 · physics.chem-ph · cond-mat.mtrl-sci

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\usepackage{pith}
\pithnumber{AEZJBBXTM6PZPDIIXFP7KUDQQR}

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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

RPA-based LNO-CC closely matches the performance of its MP2-based counterpart for systems with sizable energy gaps, while delivering significantly faster convergence toward the canonical coupled-cluster limit for metallic systems, particularly as the thermodynamic limit is approached.

C2weakest assumption

That RPA adequately captures long-range electrostatic and correlation effects outside the embedding region when used as the low-level theory in the LNO-CC framework.

C3one line summary

RPA-based LNO-CC matches MP2 performance for systems with energy gaps and shows faster convergence for metallic systems approaching the thermodynamic limit.

Formal links

1 machine-checked theorem link

Receipt and verification

First computed	2026-05-18T02:44:32.004822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01329086f3679f978d08b95ff55070847d986c532158c5e0f5697724c846ea3f

Aliases

arxiv: 2601.00131 · arxiv_version: 2601.00131v2 · doi: 10.48550/arxiv.2601.00131 · pith_short_12: AEZJBBXTM6PZ · pith_short_16: AEZJBBXTM6PZPDII · pith_short_8: AEZJBBXT

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/AEZJBBXTM6PZPDIIXFP7KUDQQR \
  | 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: 01329086f3679f978d08b95ff55070847d986c532158c5e0f5697724c846ea3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d44d4ce8f624d04a6720af441bd47afc36c4be3dcaed121d61f07e9a0201285c",
    "cross_cats_sorted": [
      "cond-mat.mtrl-sci"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.chem-ph",
    "submitted_at": "2025-12-31T22:23:48Z",
    "title_canon_sha256": "47305d35478f8c11cdc2f2dac418e8b3212e2b92512c72388ae3888fbe436e46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.00131",
    "kind": "arxiv",
    "version": 2
  }
}