Pith Number

pith:5L5EMPUQ

pith:2026:5L5EMPUQ7UW57HOWRJFKXK35FF

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Effective Field Theory of Large Scale Structure and Newtonian Motion Gauges

Antonia Mattes, Azadeh Moradinezhad Dizgah, Christian Fidler, Julien Lesgourgues, Simon Neuland

An Einstein-Boltzmann code can compute the exact gauge transformation that reduces linear general relativistic equations for matter clustering to Newtonian equations with scale-independent growth.

arxiv:2605.05114 v2 · 2026-05-06 · astro-ph.CO

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\pithnumber{5L5EMPUQ7UW57HOWRJFKXK35FF}

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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

For a given cosmology, an Einstein-Boltzmann code can find the exact gauge transformation that brings the full linear equations of motion of the clustering matter components into a form where they are identical to Newtonian equations for a self-gravitating fluid with scale-independent growth. Non-linear clustering can be consistently computed in this gauge, and the results can be transformed back.

C2weakest assumption

The self-consistency condition evaluated by the Einstein-Boltzmann code (on the smallness of a gauge transformation field) is fulfilled, allowing the nonlinear clustering computed in the Newtonian gauge to be transformed back without introducing uncontrolled errors.

C3one line summary

Newtonian motion gauges extend the validity of Newtonian EFTofLSS to scale-dependent growth and GR effects by transforming linear equations to Newtonian form, computing nonlinear clustering there, and transforming results back.

Receipt and verification

First computed	2026-06-04T01:09:50.574391Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eafa463e90fd2ddf9dd68a4aabab7d294e567d5b363be780426d9fca6d657870

Aliases

arxiv: 2605.05114 · arxiv_version: 2605.05114v2 · doi: 10.48550/arxiv.2605.05114 · pith_short_12: 5L5EMPUQ7UW5 · pith_short_16: 5L5EMPUQ7UW57HOW · pith_short_8: 5L5EMPUQ

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/5L5EMPUQ7UW57HOWRJFKXK35FF \
  | 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: eafa463e90fd2ddf9dd68a4aabab7d294e567d5b363be780426d9fca6d657870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18f65b31d4bd6d52c868735527fa51ecc75503a568db627dcedaf78edfc0402a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-06T16:45:33Z",
    "title_canon_sha256": "5698258231fecab446c82e4bdd2ee92276a8e0bac09a96cffe76c7fc43ffdf24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.05114",
    "kind": "arxiv",
    "version": 2
  }
}