Pith Number

pith:A3GWVGRT

pith:2026:A3GWVGRT563SJPKZBC3XLIJDU6

not attested not anchored not stored refs resolved

Chiral gravitational waves from multi-phase magnetogenesis

Gianmassimo Tasinato, H. V. Ragavendra, L. Sriramkumar

Brief non-slow-roll phases during inflation, combined with parity-violating interactions, amplify chiral primordial magnetic fields and induce a stochastic gravitational-wave background containing both intensity and circular polarization.

arxiv:2602.16575 v2 · 2026-02-18 · astro-ph.CO · gr-qc · hep-th

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4 Citations open

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Claims

C1strongest claim

We demonstrate, for the first time in a non-slow-roll framework, that chirality can significantly boost magnetic-field amplitudes and imprint distinctive polarization-dependent spectral features. We then develop a systematic formalism to evaluate the stochastic gravitational-wave background naturally induced at second order by these amplified fields, identifying both an intensity component and a circularly polarized contribution.

C2weakest assumption

The brief non-slow-roll phases remain theoretically consistent (no strong coupling or backreaction) while still producing the claimed amplification of chiral magnetic fields at small scales; the parity-violating interactions are assumed to be compatible with the inflationary background without introducing new instabilities.

C3one line summary

Multi-phase inflation with chiral vector interactions generates amplified primordial magnetic fields that induce a detectable circularly polarized gravitational-wave background.

References

67 extracted · 67 resolved · 37 Pith anchors

[1] Gauge Fields and Inflation 2013 · arXiv:1212.2921

[2] Inflation Produced, Large Scale Magnetic Fields, 1988

[3] Cosmological ’seed’ magnetic field from inflation, 1992

[4] Resonant Amplification of Gauge Fields in Expanding Universe 2001 · arXiv:hep-ph/0001231

[5] Primordial magnetic fields from metric perturbations 2001 · arXiv:hep-ph/0008288

Formal links

2 machine-checked theorem links

Cited by

2 papers in Pith

The Magnetic Origin of Primordial Black Holes: Ultralight PBHs and Secondary GWs

Transient Parity Violation during Inflation: Implications for PTA Gravitational Waves

Receipt and verification

First computed	2026-06-02T02:04:14.822403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

06cd6a9a33efb724bd5908b775a123a7956226817a584652863784f980e14379

Aliases

arxiv: 2602.16575 · arxiv_version: 2602.16575v2 · doi: 10.48550/arxiv.2602.16575 · pith_short_12: A3GWVGRT563S · pith_short_16: A3GWVGRT563SJPKZ · pith_short_8: A3GWVGRT

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/A3GWVGRT563SJPKZBC3XLIJDU6 \
  | 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: 06cd6a9a33efb724bd5908b775a123a7956226817a584652863784f980e14379

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d3d9411f3f585cc78533d1d9df77db238d4a3e8059f513d733257ea5347c3248",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-02-18T16:20:53Z",
    "title_canon_sha256": "7f4ab3f57e61b1a1394033155eb935980a9b3eb828f3f289c54ac9de84692208"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.16575",
    "kind": "arxiv",
    "version": 2
  }
}