Pith Number

pith:4MBAWKDR

pith:2026:4MBAWKDR3IXVAGTCRAZ56YTI7S

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Nonreciprocal magnon-magnon entanglement in a spinning cavity-magnon system

Chunfang Sun, Gangcheng Wang, Mengxue Li, Zhisheng Xu

Spinning a cavity with two yttrium iron garnet spheres produces nonreciprocal magnon-magnon entanglement via Kerr nonlinearity and the Sagnac effect.

arxiv:2605.14394 v1 · 2026-05-14 · quant-ph

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\pithnumber{4MBAWKDR3IXVAGTCRAZ56YTI7S}

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3 Author claim open · sign in to claim

4 Citations 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

By leveraging the magnon Kerr nonlinearity and the Sagnac effect arising from the cavity rotation, we show that the entanglement can be substantially enhanced, and the resulting entanglement exhibits pronounced nonreciprocal characteristics. Furthermore, our scheme demonstrates that the entanglement remains robust against thermal noise and persists at bath temperatures up to 100 mK.

C2weakest assumption

The proposal assumes that magnon Kerr nonlinearity and ideal cavity-magnon coupling can be maintained while the Sagnac effect from rotation produces the claimed nonreciprocity without significant additional losses or decoherence channels.

C3one line summary

Spinning cavity-magnon system with Kerr nonlinearity generates enhanced nonreciprocal magnon-magnon entanglement robust against thermal noise up to 100 mK.

References

71 extracted · 71 resolved · 0 Pith anchors

[1] R. Horodecki, P. Horodecki, M. Horodecki, and K. Horodecki, Quantum entanglement, Reviews of Modern Physics81, 865 (2009) 2009

[2] Vedral, Quantum entanglement, Nature Physics10, 256 (2014) 2014

[3] Steane, Quantum computing, Reports on Progress in Physics 9 61, 117 (1998) 1998

[4] R. Rietsche, C. Dremel, S. Bosch, L. Steinacker, M. Meckel, and J.-M. Leimeister, Quantum computing, Electronic Markets 32, 2525 (2022) 2022

[5] Brassard, Quantum communication complexity, Foundations of Physics33, 1593 (2003) 2003

Receipt and verification

First computed	2026-05-17T23:39:07.576885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3020b2871da2f501a628833df6268fcad7907c82f494e66d15a4dafd8a10a5e

Aliases

arxiv: 2605.14394 · arxiv_version: 2605.14394v1 · doi: 10.48550/arxiv.2605.14394 · pith_short_12: 4MBAWKDR3IXV · pith_short_16: 4MBAWKDR3IXVAGTC · pith_short_8: 4MBAWKDR

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/4MBAWKDR3IXVAGTCRAZ56YTI7S \
  | 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: e3020b2871da2f501a628833df6268fcad7907c82f494e66d15a4dafd8a10a5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f5886cdf302f7b60f389d92f0c00419b3ce73456f7e1b18b6ec39cf5ac3dff54",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-14T05:17:38Z",
    "title_canon_sha256": "58524df1a3d34696b2b87d5bf534e925d92d348fa8c601c0c475cf203829b4e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.14394",
    "kind": "arxiv",
    "version": 1
  }
}