Pith Number

pith:M4ZVXAPQ

pith:2026:M4ZVXAPQXKLPPMZ2OHH3235AOD

not attested not anchored not stored refs resolved

On-chip 1 TOPS Hyperdimensional Photonic Tensor Core using a WDM Silicon Photonic Coherent Crossbar

A. Tsakyridis, D. Lazovsky, I. Roumpos, K. Vyrsokinos, M. Moralis-Pegios, N. Pleros, S. Kovaios

A silicon photonic crossbar achieves 0.96 TOPS for hyperdimensional tensor computations using time-space-wavelength multiplexing.

arxiv:2605.13224 v1 · 2026-05-13 · physics.optics

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\pithnumber{M4ZVXAPQXKLPPMZ2OHH3235AOD}

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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

We demonstrate an on-chip 0.96 TOPS hyperdimensional photonic tensor core by utilizing a time-space-wavelength multiplexed silicon photonic Crossbar (Xbar).

C2weakest assumption

The assumption that the demonstrated 4x2x1 unit performance and error rates will hold when scaling to larger arrays and higher channel counts without significant additional noise, crosstalk, or power penalties.

C3one line summary

An experimental 4-channel TSWDM silicon photonic crossbar achieves 0.96 TOPS for hyperdimensional tensor operations with 3.9% average error and 93.3% Iris accuracy at 10-30 GBd.

References

3 extracted · 3 resolved · 0 Pith anchors

[1] The Growing Energy Footprint of Artificial Intelligence 2023 · doi:10.1016/j.joule.2023.09.004

[2] Pho- tonics for artiﬁcial intelligence and neuromorphic comput ing · doi:10.1038/s41566-020-00754-y

[3] Roadmap on neuromorphic photonics 2020 · doi:10.48550/arxiv.2501.07917

Receipt and verification

First computed	2026-05-18T03:08:48.287928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

67335b81f0ba96f7b33a71cfbd6fa070d27bcb211540e6fdbaf4e2dc2af6e53d

Aliases

arxiv: 2605.13224 · arxiv_version: 2605.13224v1 · doi: 10.48550/arxiv.2605.13224 · pith_short_12: M4ZVXAPQXKLP · pith_short_16: M4ZVXAPQXKLPPMZ2 · pith_short_8: M4ZVXAPQ

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/M4ZVXAPQXKLPPMZ2OHH3235AOD \
  | 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: 67335b81f0ba96f7b33a71cfbd6fa070d27bcb211540e6fdbaf4e2dc2af6e53d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfa3c9cec8d02ddb60095761a4ca6525fc1a7f7d332f1d61d3c1a6dd45272ceb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-05-13T09:15:03Z",
    "title_canon_sha256": "5d6c1d09ec0df7186dcbe923953f483384d76525aafaa035477a648772792ac6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.13224",
    "kind": "arxiv",
    "version": 1
  }
}