Pith Number

pith:A4WKYEZV

pith:2026:A4WKYEZVCPUEM6MRKTT5DA6HOI

not attested not anchored not stored refs pending

Enhanced Tantalum Superconducting Resonator Performance via All-Surface Organic Monolayer Passivation

Anna Cattani-Scholz, Benedikt Schoof, Harsh Gupta, Luca Rommeis, Marc Tornow, Moritz Singer, Shreya Sharma

Self-assembled organic monolayers on tantalum suppress native oxide formation and raise superconducting resonator quality factors by 140 percent.

arxiv:2604.22112 v2 · 2026-04-23 · cond-mat.mtrl-sci · physics.app-ph · quant-ph

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\usepackage{pith}
\pithnumber{A4WKYEZVCPUEM6MRKTT5DA6HOI}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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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

Microwave measurements in the ~5-9 GHz range reveal internal quality factors up to 1.8×10^6 in the single-photon regime at 100 mK, representing a ~140% improvement over untreated devices with native oxide.

C2weakest assumption

The measured quality-factor gain is caused by reduced TLS losses from suppressed oxide formation, with the organic monolayer itself introducing negligible additional dielectric loss or decoherence channels.

C3one line summary

All-surface organic monolayer passivation on tantalum resonators raises internal quality factor by 140% to 1.8 million by cutting oxide-driven two-level system losses.

Receipt and verification

First computed	2026-06-24T01:15:02.981203Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

072cac133513e846799154e7d183c7723321d319a9ad361b233678c234e1e8c1

Aliases

arxiv: 2604.22112 · arxiv_version: 2604.22112v2 · doi: 10.48550/arxiv.2604.22112 · pith_short_12: A4WKYEZVCPUE · pith_short_16: A4WKYEZVCPUEM6MR · pith_short_8: A4WKYEZV

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/A4WKYEZVCPUEM6MRKTT5DA6HOI \
  | 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: 072cac133513e846799154e7d183c7723321d319a9ad361b233678c234e1e8c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41c4e61ea585979058aeb2ec6652c3ed7ec237c820d3b09b0ec05bdf15b80032",
    "cross_cats_sorted": [
      "physics.app-ph",
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cond-mat.mtrl-sci",
    "submitted_at": "2026-04-23T23:11:23Z",
    "title_canon_sha256": "d99829b53449e21d0d8ec42e1182992e8041e334fe1f44504b4f705f60cefe43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.22112",
    "kind": "arxiv",
    "version": 2
  }
}