Interests

• Laser ionization of atoms and molecules in the strong field regime
• Relativistic quantum physics
• Non-Hermitian quantum physics
• Open quantum physics
• Quantum computing
• Scientific computing in science, technology, engineering and mathematics (STEM) teaching

My most interesting papers (at least in my own mind)

Full list of publications in peer-reviewed journals:

34) T. Kjellsson Lindblom, S. Bræck, and S. Selstø: Nonrelativistic Dirac equation: An application to photoionization of highly charged hydrogenlike ions, Physical Review A 110, 063120 (2024). arXiv-link

33) S. Selstø: Absorbers as detectors for unbound quantum systems, Physical Review A 106, 042213 (2022). arXiv-link

32) B. Bungum, S. Selstø: What do quantum computing students need to know about quantum physics, European Journal of Physics 43 055706 (2022)

31) S. Selstø: Absorption and analysis of unbound quantum particles one by one, Physical Review A 103, 012812 (2021). arXiv-link

30) T. H. Kjellsson Lindblom, S. Selstø: Relativistic photoionization with elliptically polarized laser fields in the ultraviolet region, Physical Review A 104, 043102 (2021)

29) T. H. Kjellsson Lindblom, M. Førre, E. Lindroth, and S. Selstø: Relativistic effects in photoionizing a circular Rydberg state in the optical regime, Physical Review A 102, 063108 (2020)

28) M. Førre, and S. Selstø: Schrödinger formulation of the nondipole light-matter interaction consistent with relativity, Physical Review A 101, 063416 (2020)

27) T. H. Kjellsson Lindblom, M. Førre, E. Lindroth, and S. Selstø: Semirelativistic Schrödinger Equation for Relativistic Laser-Matter Interactions, Physical Review Letters 121, 253202 (2018), Erratum: Phys. Rev. Lett. 127, 149902 (2021). arXiv-link

26) T. H. Kjellsson, M. Førre, A. S. Simonsen, S. Selstø, and E. Lindroth : Alternative gauge for the description of the light-matter interaction in a relativistic framework, Physical Review A 96, 023426 (2017). arXiv-link

25) T. H. Kjellsson, S. Selstø, and E. Lindroth: Relativistic ionization dynamics for a hydrogen atom exposed to superintense XUV laser pulses, Physical Review A 95, 043403 (2017). arXiv-link

24) A. S. Simonsen, T. Kjellsson, M. Førre, E. Lindroth, and S. Selstø: Ionization dynamics beyond the dipole approximation induced by the pulse envelope, Physical Review A 93, 053411 (2016). arXiv-link

23) S. Selstø, X. Raynaud, A. S. Simonsen, and M. Førre: Distinction between sequential and direct ionization in two-photon double ionization of helium, Physical Review A 90, 053412 (2014)

22) S. Selstø: Scattering in a quantum dot: the role of resonances, Journal of Physics: Condensed Matter 25, 315802 (2013). arXiv-link

21) S. Selstø: Formulae for partial widths derived from the Lindblad equation, Physical Review A 85, 062518 (2012). arXiv-link

20) J. Bentsson, E. Lindroth, and S. Selstø: Wave functions associated with time-dependent, complex-scaled Hamiltonians evaluated on a complex time grid, Physical Review A 85, 013419 (2012)

19) S. Selstø, T. Birkeland, S. Kvaal, R. Nepstad, and M. Førre: A master equation approach to double ionization of helium, Journal of Physics B 44, 215003 (2011). arXiv-link

18) M. Førre, R. Nepstad, and S. Selstø: Nonsequential Two-Photon Double Ionization of Atoms: Identifying the Mechanism, Physical Review Letters 105, 163001 (2010), Erratum: Phys. Rev. Lett. 106, 129905 (2011)

17) S. Selstø, and S. Kvaal: Absorbing boundary conditions for dynamical many-body quantum systems, Journal of Physics B 43, 065004 (2010). arXiv-link

16) E. Lindroth, L. Argenti, J. Bengtsson, F. Ferro, M. Genkin, and S. Selstø: The structure behind it all, Journal of Physics: Conference Series 194, 012001 (2009)

15) S. Selstø, E. Lindroth, and J. Bengtsson: Solution of the Dirac equation for hydrogenlike systems exposed to intense electromagnetic pulses, Physical Review A 79, 043418 (2009)

14) J. Bengtsson, E. Lindroth, and S. Selstø: Solution of the time-dependent Schrödinger equation using uniform complex scaling, Physical Review A 78, 032502 (2008)

13) M. Førre, J. P. Hansen, L. Kocbach, S. Selstø, T. K. Kjeldsen, and L. B. Madsen: Atoms and molecules in intense attosecond fields: beyond the dipole approximation, Journal of Physics: Conference Series 88, 012049 (2007)

12) M. Førre, S. Selstø, J. P. Hansen, T. K. Kjeldsen, and L. B. Madsen: Molecules in intense xuv pulses: Beyond the dipole approximation in linearly and circularly polarized fields, Physical Review A 76, 033415 (2007)

11) S. Selstø, and M. Førre: Alternative descriptions of the light-matter interaction beyond the dipole approximation, Physical Review A 76, 023427 (2007)

10) L. Sælen, I. Sundvor, T. Birkeland, S. Selstø, and M. Førre: Classical and quantum-mechanical investigation of the role of nondipole effects on the binding of a stripped HD²⁺ molecule, Physical Review A 76, 013415 (2007)

9) S. Selstø, A. Palacios, J. Fernández, and F. Martín: Electron angular distribution in resonance-enhanced two-photon ionization of H₂⁺ by ultrashort laser pulses, Physical Review A 75, 033419 (2007)

8) V. N. Ostrovsky, M. V. Volkov, J. H. Hansen, and S. Selstø: Four-state nonstationary models in multistate Landau-Zener theory, Physical Review B 75, 01444 (2007)

7) S. Selstø, and M. Førre: Coherent single-electron transport between coupled quantum dots, Physical Review B 74, 195327 (2006)

6) M. Førre, J. P. Hansen, L. Kocbach, S. Selstø, L. B. Madsen: Nondipole ionization dynamics of atoms in superintense high-frequency attosecond pulses, Physical Review Letters 97, 043601 (2006)

5) S. Selstø, J. F. McCann, M. Førre, and L. B. Madsen: Geometrical dependence in photoionization of H₂⁺ in high-intensity, high-frequency, ultrashort laser pulses, Physical Review A 73, 033407 (2006)

4) S. Selstø, M. Førre, J. P. Hansen, and L. B. Madsen: Strong orientation effects in ionization of H₂⁺ by short, intense, high-frequency light pulses, Physical Review Letters 95, 093002 (2005). arXiv-link

3) M. Førre, S. Selstø, J. P. Hansen, and L. B. Madsen: Exact nondipole Kramers-Henneberger form of the light-atom Hamiltonian: An application to atomic stabilization and photoelectron energy spectra, Physical Review Letters 95, 043601 (2005). arXiv-link

2) T. Birkeland, M. Førre, J. P. Hansen, S. Selstø: Dynamics of H(2p) ionization in ultrashort strong laser pulses, Journal of Physics B 37, 4205 (2004)

1) H. M. Nilsen, J. P. Hansen, S. Selstø, and L. B. Madsen: Laser excitation of angular Rydberg wavepackets, Journal of Physics B 32, 4995 (1999)