Pith Number

pith:VKHRDGD6

pith:2026:VKHRDGD6AG3YWZOO6SIY67LDNS

not attested not anchored not stored refs pending

Spinon shift current in a noncentrosymmetric quantum spin chain

Ryosuke Yamashita, Shintaro Takayoshi, Takahiro Morimoto

Spinons carry electric polarization that generates direct current under light in a noncentrosymmetric quantum spin chain.

arxiv:2604.16063 v2 · 2026-04-17 · cond-mat.str-el

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\usepackage{pith}
\pithnumber{VKHRDGD6AG3YWZOO6SIY67LDNS}

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Record completeness

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2 Internet Archive

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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 find that the bulk photovoltaic effect is driven by electric polarization carried by the spinons through the shift current mechanism, and thus is regarded as ``the spinon shift current''.

C2weakest assumption

The magnetoelectric coupling term in the XXZ Hamiltonian accurately captures the electric polarization carried by spinons, and the iTEBD simulation faithfully reproduces the nonlinear optical response without finite-size or truncation artifacts.

C3one line summary

Light-induced direct current in a noncentrosymmetric quantum spin chain is generated by spinon excitations via the shift current mechanism.

Receipt and verification

First computed	2026-05-21T01:05:19.211775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa8f11987e01b78b65cef4918f7d636cb076e1458bf8b2897b574d5406541131

Aliases

arxiv: 2604.16063 · arxiv_version: 2604.16063v2 · doi: 10.48550/arxiv.2604.16063 · pith_short_12: VKHRDGD6AG3Y · pith_short_16: VKHRDGD6AG3YWZOO · pith_short_8: VKHRDGD6

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/VKHRDGD6AG3YWZOO6SIY67LDNS \
  | 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: aa8f11987e01b78b65cef4918f7d636cb076e1458bf8b2897b574d5406541131

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b7a653503e0925ed1f8ac9edf969b93ae4eee57ec993ef91fd72398b730c57b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.str-el",
    "submitted_at": "2026-04-17T13:40:24Z",
    "title_canon_sha256": "df2dbc15654eb60644e04ce07dbbf2416bb04b213acc695d8fa9d3a58d42e703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.16063",
    "kind": "arxiv",
    "version": 2
  }
}