activity
20172025
most citedQuantifying Density Errors in DFT

128 citations · 180 across the 10 of their papers we have counts for

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Showing physics.chem-phShow all

9 papers · 1 filter

physics.chem-ph2025

Scalable Reactive Atomistic Dynamics with GAIA

Suhwan Song, Heejae Kim, Jaehee Jang +3

Groundbreaking advances in materials and chemical research have been driven by the development of atomistic simulations. However, the broader applicability of atomistic simulations…

physics.chem-ph2023★ 3 cited

DC-DFT for Open Shells: How to Deal with Spin Contamination

Hayoung Yu, Suhwan Song, Seungsoo Nam +2

Density functional theory (DFT) is widely used to predict chemical properties, but its accuracy is limited by functional approximations and their approximate self-consistent densit…

physics.chem-ph2022★ 3 cited

Extending density functional theory with near chemical accuracy beyond pure water

Suhwan Song, Stefan Vuckovic, Youngsam Kim +3

Density functional simulations of condensed phase water are typically inaccurate, due to the inaccuracies of approximate functionals. A recent breakthrough showed that the SCAN app…

physics.chem-ph2022★ 16 cited

Improving results by improving densities: Density-corrected density functional theory

Eunji Sim, Suhwan Song, Stefan Vuckovic +1

DFT calculations have become widespread in both chemistry and materials, because they usually provide useful accuracy at much lower computational cost than wavefunction-based metho…

physics.chem-ph2021★ 9 cited

Density-corrected DFT explained: Questions and answers

Suhwan Song, Stefan Vuckovic, Eunji Sim +1

HF-DFT, the practice of evaluating approximate density functionals on Hartree-Fock densities, has long been used in testing density functional approximations. Density-corrected DFT…

physics.chem-ph2020

Density sensitivity of empirical functionals

Suhwan Song, Stefan Vuckovic, Eunji Sim +1

Empirical fitting of parameters in approximate density functionals is common. Such fits conflate errors in the self-consistent density with errors in the energy functional, but den…

physics.chem-ph2020★ 3 cited

Measuring density-driven errors using Kohn-Sham inversion

Seungsoo Nam, Suhwan Song, Eunji Sim +1

Kohn-Sham inversion, that is, the finding of the exact Kohn-Sham potential for a given density, is difficult in localized basis sets. We study the precision and reliability of seve…

physics.chem-ph2019

Density functional analysis: The theory of density-corrected DFT

Stefan Vuckovic, Suhwan Song, John Kozlowski +2

Density-corrected density functional theory (DC-DFT) is enjoying substantial success in improving semilocal DFT calculations in a wide variety of chemical problems. This paper prov…

physics.chem-ph2017★ 2 cited

Benchmarks and reliable DFT results for spin-crossover complexes

Suhwan Song, Min-Cheol Kim, Eunji Sim +3

DFT is used throughout nanoscience, especially when modeling spin-dependent properties that are important in spintronics. But standard quantum chemical methods (both CCSD(T) and se…