Pith Number

pith:GP6KW2CC

pith:2026:GP6KW2CCUXNHIO5THIMRPBGLHJ

not attested not anchored not stored refs resolved

Telecom quantum memory over one microsecond in nanophotonic lithium niobate

Alan M. Dibos, Ashwith Prabhu, Daren Chen, Edmond Chow, Elizabeth A. Goldschmidt, Hansol Kim, Jiefei Zhang, Joshua Akin, Laura Heller, Pengjie Wang, Priyash Barya, Vasileios Niaouris

Erbium-doped thin-film lithium niobate stores single-photon telecom pulses for more than a microsecond.

arxiv:2605.11588 v2 · 2026-05-12 · quant-ph

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\usepackage{pith}
\pithnumber{GP6KW2CCUXNHIO5THIMRPBGLHJ}

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1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

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 store single-photon-level telecom-band optical pulses for more than a microsecond using an atomic frequency comb in erbium-doped thin-film lithium niobate, well beyond what is practically feasible via propagation in even the best nanophotonic devices due to propagation losses.

C2weakest assumption

The retrieval signal with reported phase coherence and sub-single-photon noise level is assumed to confirm faithful quantum storage without dominant uncharacterized decoherence, loss, or classical noise contributions from the nanophotonic waveguide or material defects.

C3one line summary

Demonstration of telecom quantum memory storing single-photon pulses for more than 1 μs in erbium-doped nanophotonic lithium niobate with phase coherence, sub-photon noise, up to 20 temporal modes, and 2.2 GHz bandwidth.

References

74 extracted · 74 resolved · 1 Pith anchors

[1] arXiv preprint arXiv:2604.00138 , year=

[2] Nature Photonics , pages= 2026

[3] Nature communications , volume= 2016

[4] Initialization protocol for efficient quantum memories using resolved hyperfine structure , author =. Phys. Rev. Res. , volume =. 2021 , month =. doi:10.1103/PhysRevResearch.3.L032054 , url = 2021 · doi:10.1103/physrevresearch.3.l032054

[5] Optics Express , volume= 2023

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:42.820816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33fcab6842a5da743bb33a191784cb3a4c12ef4e4eb82d34733079cc10f54a7a

Aliases

arxiv: 2605.11588 · arxiv_version: 2605.11588v2 · doi: 10.48550/arxiv.2605.11588 · pith_short_12: GP6KW2CCUXNH · pith_short_16: GP6KW2CCUXNHIO5T · pith_short_8: GP6KW2CC

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/GP6KW2CCUXNHIO5THIMRPBGLHJ \
  | 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: 33fcab6842a5da743bb33a191784cb3a4c12ef4e4eb82d34733079cc10f54a7a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15178652e90dc98d945fb5fcae90be84c78a51a04d1aa7a083bc92e053764f4b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-12T06:15:14Z",
    "title_canon_sha256": "87ba8e0266984fc644936ca2586ada4ea7cfa5e67c063c46687037fdd5e08b4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.11588",
    "kind": "arxiv",
    "version": 2
  }
}