Pith Number

pith:GRMX42OA

pith:2026:GRMX42OA7QQQD7AVRI27KSSBIB

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Kinetic Simulations of Laser-Driven Compression and Heating of Magnetised Cryogenic Hydrogen Targets using PIConGPU

Brian Marre, David Blaschke, Filip Opto{\l}owicz, Klaus Steiniger, Michael Bussmann

Charge-separation fronts in laser-driven cryogenic hydrogen form non-quasi-neutral double layers that dominate fast-ion acceleration.

arxiv:2605.16206 v1 · 2026-05-15 · physics.plasm-ph · physics.comp-ph

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Record completeness

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Claims

C1strongest claim

We demonstrate analytically and numerically that the charge-separation front (v_hb) is an intrinsically non-quasi-neutral electrostatic double layer that lies outside the closure assumptions of radiation-hydrodynamic models. A simple 2v_hb reflection scaling ... establishing this non-thermal mechanism as the dominant acceleration pathway.

C2weakest assumption

The 2D3V PIConGPU simulations with the chosen resolution and three-beam setup accurately capture the physical charge-separation fields and ion bifurcation without significant numerical artifacts or missing three-dimensional effects in the cylindrical geometry.

C3one line summary

Kinetic PIC simulations identify a non-quasi-neutral charge-separation double layer as the dominant ion acceleration mechanism in laser-driven cryogenic hydrogen targets, which is suppressed by kT-scale axial magnetic fields that also extend compression time.

References

16 extracted · 16 resolved · 0 Pith anchors

[1] First results with the novel petawatt laser acceleration facility in Dresden.Journal of Physics: Conference Series2017,874, 012028 · doi:10.1088/1742-6596/874/1/012028

[2] Single-event neutron time-of-flight spectroscopy with a petawatt-laser-driven neutron source, 2025, [arXiv:nucl-ex/2506.20026] 2025

[3] Towards High-Repetition-Rate Fast Neutron Sources Using Novel Enabling Technologies.Instruments2021,5 · doi:10.3390/instruments5040038

[4] Scaling of thin wire cylindrical compression after 100 fs Joule surface heating with material, diameter and laser energy, 2025, [arXiv:physics.plasm-ph/2507.12109] 2025

[5] Performance demonstration of the PEnELOPE main amplifier HEPA I using broadband nanosecond pulses.High Power Laser Science and Engineering2019,7, e1 2018 · doi:10.1017/hpl.2018.59

Receipt and verification

First computed	2026-05-20T00:01:58.010495Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34597e69c0fc2101fc158a35f54a41404f3dd1051a10908f6f386e47697ba76a

Aliases

arxiv: 2605.16206 · arxiv_version: 2605.16206v1 · doi: 10.48550/arxiv.2605.16206 · pith_short_12: GRMX42OA7QQQ · pith_short_16: GRMX42OA7QQQD7AV · pith_short_8: GRMX42OA

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GRMX42OA7QQQD7AVRI27KSSBIB \
  | 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: 34597e69c0fc2101fc158a35f54a41404f3dd1051a10908f6f386e47697ba76a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c11329467dac5fc4f6a47f3b40c2abc4b3623b45ec86ddbc377c4f545ad144b5",
    "cross_cats_sorted": [
      "physics.comp-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.plasm-ph",
    "submitted_at": "2026-05-15T17:23:37Z",
    "title_canon_sha256": "56763ade0b96b1dc8983408e82c5a739e85b5a00a79cdddcfc2728244be20781"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16206",
    "kind": "arxiv",
    "version": 1
  }
}