Citation¶

If you use QuGrad please cite the accompanying paper:

Long, C. K., Mayhall, N. J., Economou, S. E., Barnes, E., Barnes, C. H. W., Martins, F., … Mertig, N. (2024). Minimal evolution times for fast, pulse-based state preparation in silicon spin qubits. arXiv [Quant-Ph]. Retrieved from http://arxiv.org/abs/2406.10913

@misc{long2024minimalevolutiontimesfast,
      title={Minimal evolution times for fast, pulse-based state preparation in silicon spin qubits}, 
      author={Christopher K. Long and Nicholas J. Mayhall and Sophia E. Economou and Edwin Barnes and Crispin H. W. Barnes and Frederico Martins and David R. M. Arvidsson-Shukur and Normann Mertig},
      year={2024},
      eprint={2406.10913},
      archivePrefix={arXiv},
      primaryClass={quant-ph},
      url={https://arxiv.org/abs/2406.10913}, 
}

TY  - MISC
AU  - Long, Christopher K
AU  - Mayhall, Nicholas J
AU  - Economou, Sophia E
AU  - Barnes, Edwin
AU  - Barnes, Crispin H W
AU  - Martins, Frederico
AU  - Arvidsson-Shukur, David R M
AU  - Mertig, Normann
TI  - Minimal evolution times for fast, pulse-based state preparation in silicon
      spin qubits
T2  - arXiv [quant-ph]
PY  - 2024
DA  - 2024
UR  - http://arxiv.org/abs/2406.10913
ER  - 

Additionally, you can reference this code base specifically with the following citation:

Long C.K., Barnes C.H.W., Metrig N. (2025). QuGrad (version 1.0.0). URL: https://github.com/Christopher-K-Long/QuGrad

@misc{YourReferenceHere,
author = {Long, Christopher K. and Barnes, Crispin H. W. and Metrig, Normann},
month = {6},
title = {QuGrad},
url = {https://github.com/Christopher-K-Long/QuGrad},
year = {2025}
}

TY  - GEN
AB  - A Python package for quantum optimal control.
AU  - Long, Christopher K.
AU  - Barnes, Crispin H. W.
AU  - Metrig, Normann
DA  - 2025-06-16
KW  - quantum
KW  - optimal
KW  - control
PY  - 2025
TI  - QuGrad
UR  - https://github.com/Christopher-K-Long/QuGrad
ER

%0 Generic
%A Long, Christopher K.
%A Barnes, Crispin H. W.
%A Metrig, Normann
%D 2025
%K quantum
%K optimal
%K control
%T QuGrad
%U https://github.com/Christopher-K-Long/QuGrad

{
  "@context": "https://doi.org/10.5063/schema/codemeta-2.0",
  "@type": "SoftwareSourceCode",
  "author": [
    {
      "@id": "https://orcid.org/0009-0001-3230-942X",
      "@type": "Person",
      "affiliation": {
        "@type": "Organization",
        "legalName": "University of Cambridge and Hitachi Cambridge Laboratory"
      },
      "familyName": "Long",
      "givenName": "Christopher K."
    },
    {
      "@id": "https://orcid.org/0000-0001-7337-7245",
      "@type": "Person",
      "affiliation": {
        "@type": "Organization",
        "legalName": "University of Cambridge"
      },
      "familyName": "Barnes",
      "givenName": "Crispin H. W."
    },
    {
      "@id": "https://orcid.org/0000-0003-3025-7141",
      "@type": "Person",
      "affiliation": {
        "@type": "Organization",
        "legalName": "Hitachi Cambridge Laboratory"
      },
      "familyName": "Metrig",
      "givenName": "Normann"
    }
  ],
  "codeRepository": "https://github.com/Christopher-K-Long/QuGrad",
  "datePublished": "2025-06-16",
  "description": "A Python package for quantum optimal control.",
  "keywords": [
    "quantum",
    "optimal",
    "control"
  ],
  "license": "https://spdx.org/licenses/Apache-2.0",
  "name": "QuGrad",
  "url": "https://github.com/Christopher-K-Long/QuGrad",
  "version": "1.0.0"
}

cff-version: 1.2.0
title: QuGrad
message: >-
  If you use Suzuki-Trotter-Evolver please cite the accompanying paper:

    Long, C. K., Mayhall, N. J., Economou, S. E., Barnes, E., Barnes, C. H. W.,
    Martins, F., … Mertig, N. (2024). Minimal evolution times for fast,
    pulse-based state preparation in silicon spin qubits. arXiv [Quant-Ph].
    Retrieved from http://arxiv.org/abs/2406.10913

  Additionally, you can reference this code base using this CFF file.
type: software
authors:
  - given-names: Christopher K.
    family-names: Long
    email: ckl45@cam.ac.uk
    affiliation: University of Cambridge and Hitachi Cambridge Laboratory
    orcid: 'https://orcid.org/0009-0001-3230-942X'
  - given-names: Crispin H. W.
    family-names: Barnes
    affiliation: University of Cambridge
    orcid: 'https://orcid.org/0000-0001-7337-7245'
  - given-names: Normann
    family-names: Metrig
    affiliation: Hitachi Cambridge Laboratory
    orcid: 'https://orcid.org/0000-0003-3025-7141'
repository-code: 'https://github.com/Christopher-K-Long/QuGrad'
url: 'https://github.com/Christopher-K-Long/QuGrad'
abstract: A Python package for quantum optimal control.
keywords:
  - quantum
  - optimal
  - control
license: Apache-2.0
version: 1.0.0
date-released: '2025-06-16'