Pith Number

pith:EATJ2LDM

pith:2026:EATJ2LDM2H5BA5IGMFPSI4RWTY

not attested not anchored not stored refs pending

Ablation Removal of Transport-Blocking Defects in Surface-Electrode Ion Traps

Matthew Aylett, Parsa Rahimi, Rares Barcan, Sebastian Weidt, Toby Maddock, Winfried Karl Hensinger

A 532 nm pulsed laser removes transport-blocking defects from surface-electrode ion traps without breaking vacuum.

arxiv:2605.06312 v2 · 2026-05-07 · quant-ph

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\pithnumber{EATJ2LDM2H5BA5IGMFPSI4RWTY}

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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

We demonstrate in situ removal of a transport-blocking defect on a surface-electrode ion trap device using a Q-switched Nd:YAG 532 nm pulsed ablation laser. Following ablation, we observe near-unit shuttling success rates across the previously obstructed region and measure micromotion levels that remain within acceptable limits.

C2weakest assumption

The ablation removes the defect without creating new surface contaminants, charging, or structural damage that would degrade ion lifetime, coherence, or future shuttling performance over extended operation.

C3one line summary

A Q-switched Nd:YAG 532 nm pulsed laser ablates transport-blocking defects in surface-electrode ion traps in situ, restoring near-unit shuttling success rates without interrupting vacuum operation.

Receipt and verification

First computed	2026-05-22T01:04:05.179827Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

20269d2c6cd1fa107506615f2472369e36abd5bfa7aa1afed76d1fb7a2e6d7d2

Aliases

arxiv: 2605.06312 · arxiv_version: 2605.06312v2 · doi: 10.48550/arxiv.2605.06312 · pith_short_12: EATJ2LDM2H5B · pith_short_16: EATJ2LDM2H5BA5IG · pith_short_8: EATJ2LDM

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/EATJ2LDM2H5BA5IGMFPSI4RWTY \
  | 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: 20269d2c6cd1fa107506615f2472369e36abd5bfa7aa1afed76d1fb7a2e6d7d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c71c0a86d9b83cbda086d89fe119fc9985b417bde10ef8c97f20dd16a866a0f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-07T14:13:26Z",
    "title_canon_sha256": "e77e48427e1d6fbd464e5f8adccd27494771b0a982fa9719c712ac917037ec40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.06312",
    "kind": "arxiv",
    "version": 2
  }
}