activity
19992023
most citedRestoring the density-gradient expansion for exchange in solids and surfaces

12k citations · 33.8k across the 125 of their papers we have counts for

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Showing 2020Show all

11 papers · 1 filter

physics.comp-ph2020★ 180 cited

Kohn-Sham equations as regularizer: building prior knowledge into machine-learned physics

Li Li, Stephan Hoyer, Ryan Pederson +4

Including prior knowledge is important for effective machine learning models in physics, and is usually achieved by explicitly adding loss terms or constraints on model architectur…

physics.chem-ph2020

Simple hydrogenic estimates for the exchange and correlation energies of atoms and atomic ions, with implications for density functional theory

Aaron D. Kaplan, Biswajit Santra, Puskar Bhattarai +8

Exact density functionals for the exchange and correlation energies are approximated in practical calculations for the ground-state electronic structure of a many-electron system.…

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

Quantifying and understanding errors in molecular geometries

Stefan Vuckovic, Kieron Burke

Electronic structure calculations are ubiquitous in most branches of chemistry, but all have errors in both energies and equilibrium geometries. Quantifying errors in possibly doze…

physics.chem-ph2020

Confirmation of the PPLB derivative discontinuity: Exact chemical potential at finite temperatures of a model system

Francisca Sagredo, Kieron Burke

The landmark 1982 paper of Perdew, Parr, Levy, and Balduz (often called PPLB) laid the foundation for our modern understanding of the role of the derivative discontinuity in densit…

cond-mat.mtrl-sci2020

Classical turning surfaces in solids: When do they occur, and what do they mean?

Aaron D. Kaplan, Stewart J. Clark, Kieron Burke +1

Classical turning surfaces of Kohn-Sham potentials, separating classically-allowed regions (CARs) from classically-forbidden regions (CFRs), provide a useful and rigorous approach…