Pith Number

pith:FKCDPNY7

pith:2026:FKCDPNY7WYECDV77MGNHGIL6GY

not attested not anchored not stored refs pending

Superfluid $^3$He aerogel experiments as a laboratory neutron star analogue

Brynmor Haskell, Samuli Autti, Vanessa Graber

Superfluid 3He in aerogels exhibits two vortex pinning regimes that can model neutron star interiors.

arxiv:2604.18016 v2 · 2026-04-20 · astro-ph.HE · cond-mat.other

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\usepackage{pith}
\pithnumber{FKCDPNY7WYECDV77MGNHGIL6GY}

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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

vortex experiments in superfluids contained in aerogels show phenomenology that offers a highly appealing but vastly unexplored analogue for neutron star physics... these concepts should apply also in neutron stars and may thus revolutionise the analysis of neutron star observations.

C2weakest assumption

That the pinning and depinning dynamics extracted from the point-vortex model in aerogel quantitatively map onto the pinning sites and superfluid components inside a neutron star, despite vast differences in density, temperature, and interaction scales.

C3one line summary

Point-vortex simulations of 3He aerogels reveal crust-like depinning and core-like avalanche vortex creation that the authors argue can be mapped to neutron-star glitch dynamics.

Receipt and verification

First computed	2026-05-25T02:01:20.704991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a8437b71fb60821d7ff619a73217e361a254170efc730720d066ff1c1be2fa4

Aliases

arxiv: 2604.18016 · arxiv_version: 2604.18016v2 · doi: 10.48550/arxiv.2604.18016 · pith_short_12: FKCDPNY7WYEC · pith_short_16: FKCDPNY7WYECDV77 · pith_short_8: FKCDPNY7

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/FKCDPNY7WYECDV77MGNHGIL6GY \
  | 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: 2a8437b71fb60821d7ff619a73217e361a254170efc730720d066ff1c1be2fa4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad43cb1ec75a93c51149aab0cbd64ab20324123c9fecc504c078e22a982a8644",
    "cross_cats_sorted": [
      "cond-mat.other"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-04-20T09:40:15Z",
    "title_canon_sha256": "22a44a07cf1ed9092930afad5cf61179f17306839829405261fc6d1438a163e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.18016",
    "kind": "arxiv",
    "version": 2
  }
}