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pith:AMOETCWB

pith:2026:AMOETCWBCZTGLKDI2WAJT224H2
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Impact of control signal phase noise on qubit fidelity

Agata Barsotti, Gregorio Procissi, Massimo Macucci, Paolo Marconcini

Simulations show which noise frequencies most degrade qubit fidelity

arxiv:2601.09014 v3 · 2026-01-13 · quant-ph

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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 perform an analysis of the effect of the individual noise frequency contributions, providing a clear identification of the spectral regions that most critically impact fidelity and establishing their relative weight in the overall fidelity degradation.

C2weakest assumption

That phase-noise realizations drawn from a given power spectral density faithfully represent real hardware fluctuations and that the Qiskit-Dynamics simulation accurately captures all relevant qubit dynamics under these noisy drives.

C3one line summary

Simulations identify specific frequency bands of phase noise in control signals as the main drivers of qubit fidelity loss, with an approximate analytical picture of their contributions.

References

35 extracted · 35 resolved · 0 Pith anchors

[1] Spoke 10: Quantum Computing
[2] M. A. Nielsen and I. L. Chuang, Quantum Computa- tion and Quantum Information: 10th Anniversary Edi- tion (Cambridge University Press, Cambridge, 2010) 2010
[3] P. J. J. O’Malley, J. Kelly, R. Barends, B. Campbell, Y. Chen, Z. Chen, B. Chiaro, A. Dunsworth, A. G. Fowler, I.-C. Hoi, E. Jeffrey, A. Megrant, J. Mutus, C. Neill, C. Quintana, P. Roushan, D. Sank, A 2015
[4] J. J. Burnett, A. Bengtsson, M. Scigliuzzo, D. Niepce, M. Kudra, P. Delsing, and J. Bylander, Decoherence bench- marking of superconducting qubits, npj Quantum Inf. 5, 54 (2019) 2019
[5] M. Carroll, S. Rosenblatt, P. Jurcevic, I. Lauer, and A. Kandala, Dynamics of superconducting qubit relaxation times, npj Quantum Inf. 8, 132 (2022) 2022

Formal links

2 machine-checked theorem links

Receipt and verification
First computed 2026-05-17T23:39:00.237665Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

031c498ac1166665a868d58099eb5c3eba4e800d945ce225258283b2a7fc65af

Aliases

arxiv: 2601.09014 · arxiv_version: 2601.09014v3 · doi: 10.48550/arxiv.2601.09014 · pith_short_12: AMOETCWBCZTG · pith_short_16: AMOETCWBCZTGLKDI · pith_short_8: AMOETCWB
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/AMOETCWBCZTGLKDI2WAJT224H2 \
  | 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: 031c498ac1166665a868d58099eb5c3eba4e800d945ce225258283b2a7fc65af
Canonical record JSON 
{
  "metadata": {
    "abstract_canon_sha256": "267086160538f27d796d3ca358d83e66b6099d270df26af553ab7991174ec787",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-01-13T22:32:48Z",
    "title_canon_sha256": "66a702528007b810d6c5cb5aa597c92403ddc8c46c7fb642a58f5463318f5e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.09014",
    "kind": "arxiv",
    "version": 3
  }
}