Education:
BS, University of Oklahoma, 2008
PhD, Iowa State University, 2014
Professional Experience:
Associate Professor, University of Missouri-Columbia, 2025-Present
Assistant Professor, University of Missouri-Columbia, 2018-2025
Postdoctoral Associate, University of Illinois-Urbana Champaign 2014-2018
The Brorsen group is a computational/theoretical group that seeks to apply and develop new quantum mechanical methods. Our current focus is on multicomponent methods that include nuclear quantum effects in quantum chemistry calculations by not assuming the Born-Oppenheimer approximation for these nuclei. Presently, we are interested in both multireference and many-body multicomponent methods. Other research interests include the development of ab initio quantum electrodynamics methods and rate-equation based descriptions of ice lithography. Please visit our group website for more information.
Multicomponent Quantum Chemistry
Richardson, M.J.; Tucker, G.B.; Brorsen, K.R. An F12 Correction for Multicomponent MP2. 2026 https://doi.org/10.48550/arXiv.2609.37892
Tucker, G.B.; Brorsen, K.R. An Analytic Nuclear Energy Gradient for Multicomponent CCSD. J. Chem. Theory Comput. 2026 22, (17) 8813 https://doi.org/10.1021/acs.jctc.6c01090
Tucker, G.B.; Brorsen, K.R. Constrained nuclear–electronic orbital second-order Møller–Plesset perturbation theory. J. Chem. Phys. 2026 164, 184117 https://doi.org/10.1063/5.0327643
Polaritons
Brorsen, K.R. Cavity Loss in QED Coupled-Cluster Theory: Polariton Linewidths, Driven Steady States, and the Rabi Splitting 2026 https://doi.org/10.48550/arXiv.2610.33244
Brorsen, K.R. Vacuum-Field Squeezing by Molecules in Optical Cavities: An Exact Bound and Linear-Response Theory 2026 https://doi.org/10.48550/arXiv.2610.26732
Brorsen, K.R. Intracavity Photon Statistics from Correlated Molecular Electronic Structure. J. Chem. Phys. 2026 165, 161103 https://doi.org/10.1063/5.0357762