Curriculum Vitae

Hubert J. Jóźwiak

Institute of Physics, Nicolaus Copernicus University in Toruń

hubert.jozwiak@umk.pl

AMO physics • quantum scattering • molecular spectroscopy & line shapes • numerical methods

31 publications 400+ citations 2 funded proposals 6 awards 8 invited talks 9 contributed talks

Education

PhD in Physics (with honours), Institute of Physics, Nicolaus Copernicus University in Toruń (2025): Thesis: Collisions of simple molecules and atoms in fundamental studies
Supervisor: Prof. dr hab. Piotr Wcisło
MSc in Physics, Institute of Physics, Nicolaus Copernicus University in Toruń (2020): Thesis: Hyperfine structure of molecular hydrogen
Supervisor: Prof. dr hab. Piotr Wcisło
Best Graduate of NCU (2020)
BSc in Physics, Institute of Physics, Nicolaus Copernicus University in Toruń (2018): Thesis: Ab initio calculations of generalized spectroscopic cross-sections
Supervisor: Prof. dr hab. Piotr Wcisło
Best Graduate of NCU (2018)

Appointments

Postdoctoral Research Associate, Institute of Physics, NCU Toruń (Jun 2025–present): ERC Starting Grant H2TRAP — PI: Prof. Piotr Wcisło
Engineering Technical Specialist, Institute of Physics, NCU Toruń (Oct 2024–May 2025): ERC Starting Grant H2TRAP — PI: Prof. Piotr Wcisło

Grants & Funding

Principal Investigator, Collisional effects in exotic atom spectroscopy: ab initio calculations for fundamental physics test (Jan 2025–Jan 2028): National Science Centre (Poland), PRELUDIUM, ~$31,300 Press (PL) Popular abstract (PL)
Principal Investigator, Collisional effects in the hyperfine structure of molecular hydrogen – a fundamental problem of modern molecular spectroscopy (Sep 2019–Sep 2023): Polish Ministry of Science and Higher Education, Diamentowy Grant, ~$46,000 Press (PL)

Awards & Scholarships

Selected as a Lindau Alumnus to participate in the Lindau Nobel Laureate Meeting 2024 Press (PL)

START Stipend, Foundation for Polish Science (2023–2024) Press (PL)

Best Graduate of the Nicolaus Copernicus University (2020) Press (PL)

Minister of Science and Higher Education scholarship for students with outstanding scientific achievements — three times (2017, 2018, 2019)

Golden Medal of Chemistry for the best BSc theses in chemistry defended in 2018 Press (PL)

Best Graduate of the Nicolaus Copernicus University (2018) Press (PL)

Publications (selected)

[1] Cygan, A., S. Wójtewicz, H. Jóźwiak, G. Kowzan, N. Stolarczyk, K. Bielska, P. Wcisło, R. Ciuryło, and D. Lisak, 2025, Dispersive heterodyne cavity ring-down spectroscopy exploiting eigenmode frequencies for high-fidelity measurements. Science Advances 11(5), eadp8556. https://doi.org/10.1126/sciadv.adp8556

[2] Jóźwiak, H., N. Stolarczyk, K. Stankiewicz, M. Zaborowski, D. Lisak, S. Wójtewicz, P. Jankowski, K. Patkowski, K. Szalewicz, F. Thibault, I.E. Gordon, and P. Wcisło, 2024, Accurate reference spectra of HD in an H$_{2}$-He bath for planetary applications. A&A 687, A69. https://doi.org/10.1051/0004-6361/202449889

[3] Jóźwiak, H., F. Thibault, A. Viel, P. Wcisło, and F. Lique, 2024, Revisiting the rovibrational (de-)excitation of molecular hydrogen by helium. A&A 685, A113. https://doi.org/10.1051/0004-6361/202348645

[4] Jóźwiak, H., T.V. Tscherbul, and P. Wcisło, 2024, Hyperfine and zeeman interactions in ultracold collisions of molecular hydrogen with atomic lithium. The Journal of Chemical Physics 160(9), 094304. https://doi.org/10.1063/5.0193148

[5] Jóźwiak, H. and P. Wcisło, 2022, Magic wavelength for a rovibrational transition in molecular hydrogen. Sci. Rep. 12, 14529. https://doi.org/10.1038/s41598-022-18159-y

See the Publications page for the full list.

Talks

Invited

Towards efficient, low-scaling algorithms for quantum scattering in astrochemical applications: Physical and Chemical Processes of Astrophysical Interest: Astrochemistry at the JWST era Workshop, Saint-Florent, France — 9 Jun 2024
Collisions of simple molecules and atoms in fundamental studies: Theoretical & Computational Chemistry Group Seminar, Radboud University, Nijmegen, Netherlands — 18 Nov 2024
Collisions of simple molecules and atoms in fundamental studies: Department of Chemistry & Biochemistry Seminar, University of Nevada, Las Vegas, USA — 11 Oct 2024
Quantum scattering calculations and molecular spectroscopy for fundamental studies: Seminar, Molecular Physics Department, Université de Rennes 1, Rennes, France — 18 Jul 2023
Ab initio calculations of collisional effects in molecular spectra: Workshop on collisional excitation of (reactive) astrophysical molecules and its applications, Saint-Florent, France — 14 Jun 2022
Quantum scattering calculations for accurate molecular spectroscopy: 2nd Symposium on Cold Interactions and Collisions, NCU Toruń, Poland — 19 Nov 2021
The ground-state hyperfine structure of all hydrogen isotopologues: 2nd Online Workshop on Precision Spectroscopy of Molecular Hydrogen — 8 Jun 2021
Applications of accurate molecular spectra to studies of molecular collisions and interactions: Optical Seminar, University of Warsaw, Poland — 26 Nov 2020

Contributed

Cold molecular hydrogen: Ultracold Molecules Workshop — 26 Jun 2025
Cold and ultracold collisions of molecular hydrogen: 55th APS DAMOP Meeting, Fort Worth, USA — 4 Jun 2024
Quantum scattering calculations for accurate modeling of collision-perturbed molecular spectra: 28th Colloquium on High Resolution Molecular Spectroscopy, Dijon, France — 29 Aug 2023
Ab initio quantum scattering calculations for modeling collision-perturbed molecular spectra: 54th APS DAMOP Meeting, Spokane, USA — 6 Jun 2023
Quantum scattering calculations in diatom–diatom systems for accurate description of molecular resonance shapes: 26th International Conference on High Resolution Molecular Spectroscopy, Prague, Czech Republic — 31 Aug 2022
Hyperfine structure of excited electronic states in molecular hydrogen: 11th International Conference on Precision Physics of Simple Atomic Systems (PSAS 2022), Warsaw, Poland — 17 May 2022
Hyperfine structure of molecular hydrogen: 52nd APS DAMOP Meeting (virtual) — 3 Jun 2021
Application of accurate molecular spectra for studying molecular collisions and interactions: 51nd APS DAMOP Meeting (virtual) — 4 Jun 2020
Line-shape parameters from first principles: S and O branches in the H₂–He system: 25th International Conference on High Resolution Molecular Spectroscopy, Bilbao, Spain — 4 Sep 2018

Teaching & Mentoring

Teaching interests: Atomic, Molecular and Optical Physics • Quantum scattering theory • Molecular spectroscopy • Line-shape theory • Numerical methods in physics • Python/Fortran for scientific computing • HPC/Slurm workflows
Courses & instruction: Statistics and Probability, exercise class instructor (tutorial/recitation)
Institute of Physics, NCU Toruń (Summer 2022/23)
Led weekly exercise classes accompanying the lecture; prepared problem sets; graded; office hours.
Syllabus
Supervision & mentoring: Auxiliary PhD supervisor (from Oct 2025) — Artur Olejnik (MSc)
Host unit: Institute of Physics, Nicolaus Copernicus University in Toruń (NCU), Poland.
Primary supervisor: Prof. dr hab. Piotr Wcisło.
PhD project title: Structure of the simplest molecular complexes: accurate quantum mechanical calculations at the frontier of molecular physics and chemistry.; Summer school project (Jul–Aug 2025) — Ricardo Campos — co-supervised with Michał Żółtowski
School: Toruń Students Summer Program in Exact Sciences, NCU Toruń, Poland.
Topic: Toward New Radiative Transfer Modeling
ExSci 2025 – school Project abstract Press (EN) Press (PL); Informal mentoring (2019–present) — onboarding BSc/MSc students in Piotr Wcisło’s group to quantum-scattering and line-shape calculations; regular code/help sessions (Fortran, Python, Slurm, Git).
Mentees: Kamil Stankiewicz (mentored during BSc); Maciej Gancewski (mentored during BSc); Adam Zadrożny (mentored during BSc); Artur Olejnik (mentored during BSc and MSc); plus 2 current BSc students (ongoing).

Skills

Programming: Python (scientific computing, automation, data processing)
Fortran 77/90/95+ (scientific computing), Bash (shell scripting)
HPC: Slurm workload manager (job arrays, dependencies, resource requests); running and monitoring large batches on clusters; basic profiling and job debugging
Reproducibility & tooling: Git/GitHub (daily), Quarto/Markdown for docs & websites
Scientific typesetting: LaTeX; preparing publication-quality figures
Operating systems: Linux (primary), macOS
Languages: Polish — native; English — fluent

Service

Reviewed 7 scientific articles for journals, including Nature (2024), J. Quant. Spectrosc. Radiat. Transf. (2023–2025), J. Electron. Mater. (2023), Acta Phys. Pol. A (2022), and Sci. Rep. (2022).

Outreach activities

University Open Days: Q&A with PhD students, Nicolaus Copernicus University (24 Apr 2021)
Popular science talk – the Opening Lecture of the academic year 2020/2021 at the Faculty of Physics, Astronomy and Informatics, Nicolaus Coper (6 Oct 2020)
Popular science talk for the Association of Astronomy Students, Faculty of Physics, Astronomy and Informatics, Nicolaus Coper (20 Mar 2018)