Pith Number

pith:MHP3LXHW

pith:2026:MHP3LXHWW3CJU7W2NSFLKVADUK

not attested not anchored not stored refs pending

Quantum Information Dynamics of QED$_2$ in Expanding de Sitter Universe

Kazuki Ikeda, Yaron Oz

De Sitter QED2 develops a pseudo-critical line that governs loss of adiabaticity and produces a detectable irreversibility front in relative entropy.

arxiv:2604.02777 v2 · 2026-04-03 · hep-th · gr-qc · hep-lat · nucl-th · quant-ph

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\usepackage{pith}
\pithnumber{MHP3LXHWW3CJU7W2NSFLKVADUK}

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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

These results identify de Sitter QED₂ as a controlled setting for linking curved-space gauge dynamics, near-critical spectral structure, and operational irreversibility.

C2weakest assumption

The lattice discretization with fixed mass and the continuum extrapolation accurately capture the infrared physics of continuum QED2 in de Sitter space without introducing artifacts that dominate the late-time dip and irreversibility front.

C3one line summary

In de Sitter QED2, a moving narrow-gap region creates a pseudo-critical line that governs loss of adiabaticity, excitation growth, and a detectable irreversibility front in relative entropy.

Receipt and verification

First computed	2026-06-23T01:13:04.933398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61dfb5dcf6b6c49a7eda6c8ab55403a2a12dcae270ef0c5ea1ac4ed69be4cf52

Aliases

arxiv: 2604.02777 · arxiv_version: 2604.02777v2 · doi: 10.48550/arxiv.2604.02777 · pith_short_12: MHP3LXHWW3CJ · pith_short_16: MHP3LXHWW3CJU7W2 · pith_short_8: MHP3LXHW

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/MHP3LXHWW3CJU7W2NSFLKVADUK \
  | 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: 61dfb5dcf6b6c49a7eda6c8ab55403a2a12dcae270ef0c5ea1ac4ed69be4cf52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9a97029fe9225e370818ead18b9a8f3a71d7e57ea0658ffbc51749dbac134f13",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-lat",
      "nucl-th",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2026-04-03T06:37:56Z",
    "title_canon_sha256": "e288ed2000dcbbdb49381b2340d40ce551534778616c7570fb85b70b4f73b03c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.02777",
    "kind": "arxiv",
    "version": 2
  }
}