Pith Number

pith:YTDGFV5N

pith:2026:YTDGFV5NSHXPTLYX5TELYTHGGP

not attested not anchored not stored refs pending

Valley-locked Optical Spin Merons in Valley Photonic Crystal Waveguides

Lan Zhang, Lipeng Wan, Lvjin He, Shanshan Chen, Tianbao Yu, Weimin Deng, Ziyang Chen

Valley photonic crystal waveguides carry valley-locked optical spin skyrmions as protected eigenstates of topological edge states.

arxiv:2605.02676 v4 · 2026-05-04 · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YTDGFV5NSHXPTLYX5TELYTHGGP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

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 demonstrate a photonic platform that utilizes topologically protected valley edge state to achieve robust on-chip directional transport of optical spin skyrmions. These skyrmions originate from spin-orbit coupling within the evanescent field at the valley photonic crystal surface and exist as eigenstates of the topologically protected edge state, ensuring their robust unidirectional propagation. Leveraging the valley degree of freedom of topological edge states, we further achieve valley-locked spin skyrmions, enabling flexible control over the polarity of spin skyrmions.

C2weakest assumption

The assumption that optical spin skyrmions originate from spin-orbit coupling in the evanescent field and exist as eigenstates of the topologically protected valley edge state, allowing robust unidirectional propagation and valley-locking without loss of topological protection.

C3one line summary

Valley photonic crystal waveguides enable robust unidirectional transport of valley-locked optical spin skyrmions formed via spin-orbit coupling in evanescent fields.

Formal links

1 machine-checked theorem link

Receipt and verification

First computed	2026-06-09T02:07:28.128225Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4c662d7ad91eef9af17ecc8bc4ce633c1518939ed6956ed306514abacdc58f9

Aliases

arxiv: 2605.02676 · arxiv_version: 2605.02676v4 · doi: 10.48550/arxiv.2605.02676 · pith_short_12: YTDGFV5NSHXP · pith_short_16: YTDGFV5NSHXPTLYX · pith_short_8: YTDGFV5N

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/YTDGFV5NSHXPTLYX5TELYTHGGP \
  | 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: c4c662d7ad91eef9af17ecc8bc4ce633c1518939ed6956ed306514abacdc58f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb9b1d4ca8fb7af656593e9d58645bbdaac055d05c9b9ec2a4ce0391f0e22602",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2026-05-04T14:55:53Z",
    "title_canon_sha256": "ed60f670dad50c416f28c04370e7ee32bb20eee44e93f334796e291abe2cbb03"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.02676",
    "kind": "arxiv",
    "version": 4
  }
}