Pith Number

pith:DVEZOH6C

pith:2026:DVEZOH6CIXEURI4DFGUNK7Y6TG

not attested not anchored not stored refs resolved

High-throughput full-f gyrokinetics of the tokamak boundary

A.C.D. Hoffmann, A. Hakim, G.W. Hammett, M. Francisquez, T.N. Bernard

Hundreds of full-f gyrokinetic simulations show plasma shaping impacts on tokamak boundary confinement are strongly power dependent.

arxiv:2605.01117 v2 · 2026-05-01 · physics.plasm-ph · nlin.CD · physics.comp-ph · physics.data-an

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Claims

C1strongest claim

Analysis of the steady-state profiles reveals that the impact of plasma shaping on confinement is strongly power dependent: at low power, triangularity primarily controls the SOL ion temperature, while at high power it mostly affects the edge ion temperature gradient. The low-power hot SOL observed for positive triangularity is explained by a neoclassical trapped-ion mechanism.

C2weakest assumption

The simulations have all reached true steady state after evolving much longer than the turbulence relaxation time, and that the observed power-dependent shaping effects are not artifacts of the specific TCV-inspired geometry or the chosen numerical resolution and boundary conditions.

C3one line summary

Hundreds of concurrent full-f gyrokinetic simulations demonstrate power-dependent impacts of plasma shaping on tokamak boundary confinement and release open data for model benchmarking.

References

73 extracted · 73 resolved · 0 Pith anchors

[1] to provide a more robust setup for the large number of simulations of the scan, which is not tweaked case by case. In the following section, we verify that each simulation reaches a statistical steady

[2] A. J. Creely, M. J. Greenwald, S. B. Ballinger, D. Brun- ner, J. Canik, J. Doody, T. Fülöp, D. T. Garnier, R. Granetz, T. K. Gray, C. Holland, N. T. Howard, 9 J. W. Hughes, J. H. Irby, V. A. Izzo, G. 2020

[3] C. Hegna, D. Anderson, E. Andrew, A. Ayilaran, A. Bader, T. Bohm, K. C. Mata, J. Canik, L. Carba- jal, A. Cerfon, and et al., Journal of Plasma Physics91, E76 (2025) 2025

[4] J. Lion, J.-C. Anglès, L. Bonauer, A. Bañón Navarro, S. Cadena Ceron, R. Davies, M. Drevlak, N. Foppiani, J. Geiger, A. Goodman, W. Guo, E. Guiraud, F. Hernán- dez, S. Henneberg, R. Herrero, C. Hintze 2025

[5] C. Swanson, S. Kumar, D. Duda, E. Flom, W. Kalb, T. Kruger, M. Martin, J. Olatunji,et al., Overview of the Helios design: A practical planar coil stellarator fu- sion power plant (n.d.), white paper ( 2026

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:40.188541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d49971fc245c948a38329a8d57f1e99824f1e99b3d28016a87816f463ff8de4

Aliases

arxiv: 2605.01117 · arxiv_version: 2605.01117v2 · doi: 10.48550/arxiv.2605.01117 · pith_short_12: DVEZOH6CIXEU · pith_short_16: DVEZOH6CIXEURI4D · pith_short_8: DVEZOH6C

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DVEZOH6CIXEURI4DFGUNK7Y6TG \
  | 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: 1d49971fc245c948a38329a8d57f1e99824f1e99b3d28016a87816f463ff8de4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b7f0fa9d183de191aca0d2b2d4bc055e3017999027fc4d80d72eb6df3e0f68a6",
    "cross_cats_sorted": [
      "nlin.CD",
      "physics.comp-ph",
      "physics.data-an"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2026-05-01T21:40:16Z",
    "title_canon_sha256": "ded3c900c60a01fa605f6383b492d70f5955cb1a5dbfa90aa61eb7676b09168d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.01117",
    "kind": "arxiv",
    "version": 2
  }
}