Pith Number

pith:KTOYKMC5

pith:2026:KTOYKMC5W3EVAO5Y2W5HNRCZR4

not attested not anchored not stored refs resolved

Unified Topological Dynamics of Merging Bound States in the Continuum for High-Order Topological Charges

Keren Wang, Lujun Huang, Wei Wang

Merging off-Γ bound states in the continuum creates topological charges up to order 3 in simple C4 photonic slabs.

arxiv:2605.17479 v1 · 2026-05-17 · physics.optics

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\usepackage{pith}
\pithnumber{KTOYKMC5W3EVAO5Y2W5HNRCZR4}

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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

Leveraging this mechanism, we realize unconventional TCs of up to ±3 at either a symmetry-protected BIC or a degeneracy point in a simple C4-symmetric photonic crystal slab.

C2weakest assumption

The parameter-driven merging dynamics of off-Γ BICs can be controlled to produce high-order TCs while preserving the lattice symmetry protections and without significant radiative losses that would destroy the BIC character.

C3one line summary

High-order topological charges up to ±3 are realized in C4-symmetric photonic crystal slabs via parameter-driven merging of off-Γ BICs using a unified geometric framework based on Fabry-Pérot interference and guided resonances.

References

273 extracted · 273 resolved · 0 Pith anchors

[1] <Achieving coherent perfect absorption ---.pdf> , type =

[2] <ol-23-15-1149.pdf> , year =

[3] <GR-FP coupling.pdf> , year =

[4] <Avoided crossings and bound states in the continuum in low-contrast dielectric gratings.pdf> , year =

[5] Realization of Bound state In the Continuum induced by vertical symmetry breaking in photonic lattice , year =

Receipt and verification

First computed	2026-05-20T00:04:41.198585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54dd85305db6c9503bb8d5ba76c4598f2eb44d2f260da4aca809def167ca605c

Aliases

arxiv: 2605.17479 · arxiv_version: 2605.17479v1 · doi: 10.48550/arxiv.2605.17479 · pith_short_12: KTOYKMC5W3EV · pith_short_16: KTOYKMC5W3EVAO5Y · pith_short_8: KTOYKMC5

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/KTOYKMC5W3EVAO5Y2W5HNRCZR4 \
  | 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: 54dd85305db6c9503bb8d5ba76c4598f2eb44d2f260da4aca809def167ca605c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01e4e920596224ed792ddd7ac919afe2cb46f8dd478ce0a2a34c45baedfae063",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-05-17T14:35:12Z",
    "title_canon_sha256": "273444a7e5b6394a2a51f08b8dbadb56806cd8745f461417140a1cce74cc80b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17479",
    "kind": "arxiv",
    "version": 1
  }
}