Electronic Excitations Through the Prism of Mean-Field Decomposition Techniques

Janus J. Eriksen*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

The potential of mean-field decomposition techniques in interpreting electronic transitions in molecules is explored, particularly, the usefulness of these for offering computational signatures of different classes of such excitations. When viewed as a conceptual lens for this purpose, decomposed results are presented for ground- and excited-state energies and dipole moments of selected prototypical organic dyes, and the discrete nature of these properties as well as how they change upon transitioning from one state to another are analyzed without recourse to a discussion based on the involved molecular orbitals. On the basis of results obtained both with or without an account of continuum solvation, our work is further intended to shed new light on practical and pathological differences in-between various functional approximations in orbital-optimized Kohn-Sham density functional theory for excited states, equipping practitioners and developers in the field with new probes and possible validation tools.
Original languageEnglish
Article number061101
JournalJournal of Chemical Physics
Volume156
Number of pages9
ISSN0021-9606
DOIs
Publication statusPublished - 2022

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