Kort om
- Academic interests: mathematical quantum chemistry
- Research: Andre’s research interest is mathematical quantum chemistry. During his PhD he worked on the mathematical formulation of density-functional theory for systems included magnetic fields. After that Andre focused for many years on coupled-cluster theory and its many variants and with a special interest to be able to describe also excited states and not just the ground state. Most central to Andre´s research at the moment is the Moreau-Yosida regularization and its application in density-functional theory.
- Current projects: PI of two projects REGAL (ERC funded) and CCerror (RCN funded). The ERC funded project REGAL (https://uni.oslomet.no/regal/) started Sept. 2022. The aim of this project is to investigate density-functional theory in a lossless (Moreau-Yosida) regularized setting.
- Academic Degrees (from Royal Institute of Technology, Stockholm, Sweden):
- Master of Science in Biotechnology (September 2008, final grade: 5.0/5.0, Thesis 5.0/5.0)
- Ph.D in applied mathematics (June 2014, supervisor: M. Benedicks, co-supervisors: A. Szepessy and O. Vahtras)
- Teachings:
- Spring 2023: MEK2200 Statistics and Risk Management
- Autumn 2023: ACIT4310 Applied and Computational Mathematics
Fagområder
Vitenskapsdisipliner
Emner
Forskningsgrupper
Publikasjoner og forskningsresultater
Vitenskapelige publikasjoner
Csirik, Mihaly Andras; Laestadius, Andre
(2023).
Coupled-Cluster theory revisited: Part II: Analysis of the single-reference Coupled-Cluster equations.
38 s.
ESAIM: Mathematical Modelling and Numerical Analysis (ESAIM: M2AN).
Vol. 57.
https://doi.org/10.1051/m2an/2022099
Penz, Markus; Tellgren, Erik Ingemar; Csirik, Mihaly Andras; Ruggenthaler, Michael; Laestadius, Andre
(2023).
The Structure of the Density-Potential Mapping. Part II: Including Magnetic Fields.
ACS Physical Chemistry Au.
https://doi.org/10.1021/acsphyschemau.3c00006
Csirik, Mihaly Andras; Laestadius, Andre
(2023).
Coupled-Cluster theory revisited: Part I: Discretization.
25 s.
ESAIM: Mathematical Modelling and Numerical Analysis (ESAIM: M2AN).
Vol. 57.
https://doi.org/10.1051/m2an/2022094
Penz, Markus; Csirik, Mihaly Andras; Laestadius, Andre
(2023).
Density-potential inversion from Moreau-Yosida regularization.
Electronic Structure.
Vol. 5.
https://doi.org/10.1088/2516-1075/acc626
Penz, Markus; Tellgren, Erik Ingemar; Csirik, Mihaly Andras; Ruggenthaler, Michael; Laestadius, Andre
(2023).
The Structure of Density-Potential Mapping. Part I: Standard Density-Functional Theory.
ACS Physical Chemistry Au.
Vol. 3.
https://doi.org/10.1021/acsphyschemau.2c00069
Faulstich, Fabian M.; Laestadius, Andre
(2023).
Homotopy continuation methods for coupled-cluster theory in quantum chemistry.
9 s.
Molecular Physics.
https://doi.org/10.1080/00268976.2023.2258599
Faulstich, Fabian M.; Kristiansen, Håkon Emil; Csirik, Mihaly Andras; Kvaal, Simen; Pedersen, Thomas Bondo; Laestadius, Andre
(2023).
The S-diagnostic - an a posteriori error assessment for single-reference coupled-cluster methods.
14 s.
Journal of Physical Chemistry A.
Vol. 127.
https://doi.org/10.1021/acs.jpca.3c01575
Teale, Andrew Michael; Helgaker, Trygve; Savin, Andreas; Adamo, Carlo; Aradi, Balint; Arbuznikov, Alexei V.; Ayers, Paul W.; Baerends, Evert Jan; Barone, Vincenzo; Calaminici, Patrizia; Cances, Eric; Carter, Emily A.; Chattaraj, Pratim Kumar; Chermette, Henry; Ciofini, Ilaria; Crawford, T. Daniel; de Proft, Frank; Dobson, John F.; Draxl, Claudia; Frauenheim, Thomas; Fromager, Emmanuel; Fuentealba, Patricio; Gagliardi, Laura; Galli, Giulia; Gao, Jaili; Geerlings, Paul; Gidopoulos, Nikitas I.; Gill, Peter M. W.; Gori-Giorgi, Paola; Görling, Andreas; Gould, Tim; Grimme, Stefan; Gritsenko, Oleg; Jensen, Hans Jørgen Aagaard; Johnson, Erin R.; Jones, Robert O.; Kaupp, Martin; Köster, Andreas M.; Kronik, Leeor; Krylov, Anna I.; Kvaal, Simen; Laestadius, Andre; Levy, Mel; Lewin, Mathieu; Liu, Shubin; Loos, Pierre-Francois; Maitra, Neepa T.; Neese, Frank; Perdew, John P.; Pernal, Katarzyna; Pernot, Pascal; Piecuch, Piotr; Rebolini, Elisa; Reining, Lucia; Romaniello, Pina; Ruzsinszky, Adrienn; Salahub, Dennis R.; Scheffler, Matthias; Schwerdtfeger, Peter; Staroverov, Viktor N.; Sun, Jianwei; Tellgren, Erik Ingemar; Tozer, David J.; Trickey, Samuel B.; Ullrich, Carsten A.; Vela, Alberto; Vignale, Giovanni; Wesolowski, Tomasz A.; Xu, Xin; Yang, Weitao
(2022).
DFT exchange: sharing perspectives on the workhorse of quantum chemistry and materials science.
Physical Chemistry, Chemical Physics - PCCP.
https://doi.org/10.1039/d2cp02827a
Laestadius, Andre; Penz, Markus; Tellgren, Erik Ingemar
(2021).
Revisiting density-functional theory of the total current density.
10 s.
Journal of Physics: Condensed Matter.
Vol. 33.
https://doi.org/10.1088/1361-648X/abf784
Kvaal, Simen; Laestadius, Andre; Tellgren, Erik Ingemar; Helgaker, Trygve
(2021).
Lower Semicontinuity of the Universal Functional in Paramagnetic Current-Density Functional Theory.
4 s.
The Journal of Physical Chemistry Letters.
Vol. 12.
https://doi.org/10.1021/acs.jpclett.0c03422
