Pith Number

pith:NBFCL2DX

pith:2026:NBFCL2DXYYRVPXT2B3RSEVLRHB

not attested not anchored not stored refs pending

Non-Ambipolarity of Microturbulent Transport

Allen H Boozer

Turbulent magnetic perturbations at finite beta create chaotic field lines whose quasi-neutrality condition produces electron transport that balances non-ambipolar ion diffusion.

arxiv:2601.15661 v3 · 2026-01-22 · physics.plasm-ph

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Record completeness

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Claims

C1strongest claim

The chaos-produced electron transport gives an effective viscosity on the electron flow, which can counterbalance a non-ambipolar part of the ion radial particle diffusion that is f_na times gyro-Bohm diffusion. The maximum f_na that can be counterbalanced and the required plasma beta to avoid shielding the magnetic perturbations B̃ are calculated.

C2weakest assumption

That at finite plasma pressure the turbulent electric potential is accompanied by an unshielded turbulent magnetic field B̃ that makes field lines chaotic, and that quasi-neutrality along those lines requires the specific relation en B·∇Φ = B·∇ p_e without additional effects.

C3one line summary

Microturbulence-induced magnetic chaos generates electron transport via a specific potential that balances non-ambipolar ion diffusion up to a maximum f_na fraction of gyro-Bohm level, with a minimum beta required to avoid shielding.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-19T16:12:17.770814Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

684a25e877c62357de7a0ee3225571384560c7b5b89617b64708839d6a334a0d

Aliases

arxiv: 2601.15661 · arxiv_version: 2601.15661v3 · doi: 10.48550/arxiv.2601.15661 · pith_short_12: NBFCL2DXYYRV · pith_short_16: NBFCL2DXYYRVPXT2 · pith_short_8: NBFCL2DX

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NBFCL2DXYYRVPXT2B3RSEVLRHB \
  | 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: 684a25e877c62357de7a0ee3225571384560c7b5b89617b64708839d6a334a0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9afd41c0996cd8c308a8440f3b05efa7888fd4d2ba94f71971c74cd0fffa9b18",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2026-01-22T05:20:38Z",
    "title_canon_sha256": "da2ceb15e2a45b5409387f86e4c917dc187a74adc2a4631d45ec6ed515c84621"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.15661",
    "kind": "arxiv",
    "version": 3
  }
}