Pith Number

pith:QOTQPOSW

pith:2026:QOTQPOSW274647KIKCLYNXA7HX

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Floquet quantum multiparameter estimation with periodic-driving-induced topological phase transition

Fuli Li, Pei Zhang, Yu Yang, Yuyang Tang

Near a driving-induced topological phase transition, multiparameter estimation reaches Heisenberg scaling and beyond.

arxiv:2605.04463 v1 · 2026-05-06 · quant-ph

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Claims

C1strongest claim

In the vicinity of the TPT boundary, we reveal a pronounced enhancement in the estimation precision of multiple parameters with the Heisenberg limit scaling and even higher. Meanwhile, the measurement incompatibility vanishes in an oscillatory manner, and the stroboscopic projective measurement enables the highest estimation precision achievable.

C2weakest assumption

The Floquet theory framework fully captures the contributions of eigenmodes, quasienergies, and multi-photon processes to the quantum Fisher information matrix and measurement incompatibility for general time-periodically driven systems where static effective Hamiltonian approaches fail.

C3one line summary

A Floquet-based strategy for time-periodic quantum systems shows enhanced multiparameter estimation precision near topological phase transitions, reaching Heisenberg scaling or better with vanishing measurement incompatibility under stroboscopic measurements.

References

75 extracted · 75 resolved · 0 Pith anchors

[1] The ratio tan θ = ωSO/ω relates the Lamor frequency ωSO of spin precession to the frequency ω of changing the magnetic field direction

[2] ihMoICDSZ8G+48oA4+9ARDS790U=

[3] 8Z8zuormByVYUM4eqtd54VWXfHs=

[4] Status Solidi (RRL)–Rapid Res 2013

[5] Zhang X et al 2022 Digital quantum simulation of Flo- quet symmetry-protected topological phases Nature 607 468 2022

Formal links

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Receipt and verification

First computed	2026-05-28T01:04:41.581574Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83a707ba56d7f9ee7d48509786dc1f3ddef9d6346809731bf630994b6b13950f

Aliases

arxiv: 2605.04463 · arxiv_version: 2605.04463v1 · doi: 10.48550/arxiv.2605.04463 · pith_short_12: QOTQPOSW2746 · pith_short_16: QOTQPOSW274647KI · pith_short_8: QOTQPOSW

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/QOTQPOSW274647KIKCLYNXA7HX \
  | 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: 83a707ba56d7f9ee7d48509786dc1f3ddef9d6346809731bf630994b6b13950f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf49b25110801f4aa91f865e19cb8948068643962cc9349ce3192e3fcc2531c3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-06T03:42:30Z",
    "title_canon_sha256": "20404f3933d74840a2fd5e879522f227da04cd41451896568722bfc73a2eff46"
  },
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  "source": {
    "id": "2605.04463",
    "kind": "arxiv",
    "version": 1
  }
}