About
Website: https://uni.oslomet.no/regal/vebjorn-h-bakkestuen/
Scientific Interests
- Quantum mechanics
- Mathematical quantum chemistry
Research
Currently working with the project REGAL - Regularized density-functional analysis, a European Research Council (ERC) Starting Grant.
Link to project website, uni.oslomet.no/regal/
I am at the moment working on applying and analysing methods from DFT on a quantum electrodynamical system. I am also working on an application of Moreau-Yosida regularisation of DFT to periodic systems (crystalline materials).
Education
- Bachelor of Science in Physics and Astronomy, University of Oslo
- Master of Science in Theoretical Physics, University of Oslo
The title of the Master´s thesis was Non-Hermitian Quantum Mechanics - On the role of PT-Symmetry and Exceptional Points.
Link to DUO Research Archive, www.duo.uio.no/handle/10852/103693
Fields of study
Academic disciplines
Theoretical chemistry, quantum chemistry Physics Condensed matter physics Mathematic modelling and numerical methods Applied mathematics
Research projects
Ongoing research projects
-
REGAL
The project researches Moreau-Yosida regularization in density-functional theory (DFT). Of particular interest is Kohn-Sham-DFT that uses one-particle orbitals to represent the one-body density.
Publications and research
Scientific publications
Bakkestuen, Vebjørn Hallberg
;
Falmår, Vegard
;
Lotfigolian, Maryam
;
Penz, Markus
; Ruggenthaler, Michael;
Laestadius, Andre
(2025).
Quantum-Electrodynamical Density-Functional Theory Exemplified by the Quantum Rabi Model.
Journal of Physical Chemistry A.
Vol. 129.
https://doi.org/10.1021/acs.jpca.4c07690
Herbst, Michael F.;
Bakkestuen, Vebjørn Hallberg
;
Laestadius, Andre
(2025).
Kohn-Sham inversion with mathematical guarantees.
Physical review B (PRB).
Vol. 111.
https://doi.org/10.1103/PhysRevB.111.205143
Bakkestuen, Vebjørn Hallberg
;
Csirik, Mihaly Andras
;
Laestadius, Andre
;
Penz, Markus
(2024).
Density-Functional Theory for the Dicke Hamiltonian.
Journal of statistical physics.
Vol. 192.
https://doi.org/10.1007/s10955-025-03442-9
