Orbital-optimized DFT with extended Löwdin formalism qualitatively reproduces multireference absorption spectra for single-determinant states but shows discrepancies for multi-configurational ones, with no systematic gain from exact exchange or self-interaction correction.
Variational density functional calculations of excited states via direct optimization
3 Pith papers cite this work. Polarity classification is still indexing.
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2026 3verdicts
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The paper establishes an exact N-centered ensemble DFT formalism unifying neutral and charged excitations and introduces three practical strategies: weight-dependent scaling of ground-state functionals, quasi-degenerate ensemble perturbation theory, and quantum bath embedding for excited states.
Plane-wave OO-DFT reveals that single-augmented atomic basis sets produce inaccurate dipole moments for Rydberg states despite accurate excitation energies, with PBE0 giving the best agreement to higher-level references among tested functionals.
citing papers explorer
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Excited-state Properties Beyond the Excitation Energy from Orbital-Optimized Density Functional Calculations II: Absorption Spectra
Orbital-optimized DFT with extended Löwdin formalism qualitatively reproduces multireference absorption spectra for single-determinant states but shows discrepancies for multi-configurational ones, with no systematic gain from exact exchange or self-interaction correction.
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Ensemble density functional theory of excited states: Exact N-centered formalism and practical opportunities
The paper establishes an exact N-centered ensemble DFT formalism unifying neutral and charged excitations and introduces three practical strategies: weight-dependent scaling of ground-state functionals, quasi-degenerate ensemble perturbation theory, and quantum bath embedding for excited states.
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Excited-state Properties Beyond the Excitation Energy from Orbital-Optimized Density Functional Calculations I: Dipole Moments of Rydberg States
Plane-wave OO-DFT reveals that single-augmented atomic basis sets produce inaccurate dipole moments for Rydberg states despite accurate excitation energies, with PBE0 giving the best agreement to higher-level references among tested functionals.