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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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cond-mat.mtrl-sci2023

Orbital-free functional with sub-milliHartree errors for slabs

Pavel Okun, Antonio C. Cancio, Kieron Burke

Using principles of asymptotic analysis, we derive the exact leading corrections to the Thomas-Fermi kinetic energy approximation for Kohn-Sham electrons for slabs. This asymptotic…

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…

cond-mat.mtrl-sci2019

Explicit corrections to the gradient expansion for the kinetic energy in one dimension

Kieron Burke

A mathematical framework is constructed for the sum of the lowest N eigenvalues of a potential. Exactness is illustrated on several model systems (harmonic oscillator, particle in…

cond-mat.mtrl-sci2018

Fitting a round peg into a round hole: asympotically correcting the generalized gradient approximation for correlation

Antonio Cancio, Guo P. Chen, Brandon T. Krull +1

We revisit the two derivations of the PBE correlation functional: The real-space cut-off of the exchange-correlation hole and the imposition of exact conditions. These differ in th…

cond-mat.mtrl-sci2016★ 633 cited

Understanding Band Gaps of Solids in Generalized Kohn-Sham Theory

John P. Perdew, Weitao Yang, Kieron Burke +11

The fundamental energy gap of a periodic solid distinguishes insulators from metals and characterizes low-energy single-electron excitations. But the gap in the band-structure of t…

cond-mat.mtrl-sci2016★ 42 cited

Locality of correlation in density functional theory

Kieron Burke, Antonio Cancio, Tim Gould +1

The Hohenberg-Kohn density functional was long ago shown to reduce to the Thomas-Fermi approximation in the non-relativistic semiclassical (or large-) limit for all matter, i.e,…

cond-mat.mtrl-sci2014★ 3 cited

Atomic correlation energies and the generalized gradient approximation

Kieron Burke, Antonio Cancio, Tim Gould +1

Careful extrapolation of atomic correlation energies suggests that tends to as tends to infinity, where is the atomic number, is known, and …

cond-mat.mtrl-sci2013★ 50 cited

Guaranteed convergence of the Kohn-Sham equations

Lucas O. Wagner, E. M. Stoudenmire, Kieron Burke +1

A sufficiently damped iteration of the Kohn-Sham equations with the exact functional is proven to always converge to the true ground-state density, regardless of the initial densit…

cond-mat.mtrl-sci2012★ 81 cited

Reference electronic structure calculations in one dimension

Lucas O. Wagner, E. M. Stoudenmire, Kieron Burke +1

Large strongly correlated systems provide a challenge to modern electronic structure methods, because standard density functionals usually fail and traditional quantum chemical app…

cond-mat.mtrl-sci2010★ 43 cited

Ionization potentials in the limit of large atomic number

Lucian A. Constantin, John C. Snyder, John P. Perdew +1

By extrapolating the energies of non-relativistic atoms and their ions with up to 3000 electrons within Kohn-Sham density functional theory, we find that the ionization potential r…

cond-mat.mtrl-sci2009★ 35 cited

On the density-potential mapping in time-dependent density functional theory

Neepa T. Maitra, Tchavdar N. Todorov, Chris Woodward +1

The key questions of uniqueness and existence in time-dependent density functional theory are usually formulated only for potentials and densities that are analytic in time. Simple…

cond-mat.mtrl-sci2009★ 4 cited

Non-empirical 'derivation' of B88 exchange functional

Peter Elliott, Kieron Burke

The B88 exchange energy density functional (created by Becke in 1988) is a crucial part of the most popular density functional in use today, B3LYP. B88 contains one empirical param…

cond-mat.mtrl-sci2007★ 12k cited

Restoring the density-gradient expansion for exchange in solids and surfaces

John P. Perdew, Adrienn Ruzsinszky, Gabor I. Csonka +5

Successful modern generalized gradient approximations (GGA's) are biased toward atomic energies. Restoration of the first-principles gradient expansion for exchange over a wide ran…

cond-mat.mtrl-sci2007

Comment on ``Analysis of Floquet formulation of time-dependent density-functional theory'' [Chem. Phys. Lett. {\bf 433} (2006), 204]

Neepa T. Maitra, Kieron Burke

We discuss the relationship between modern time-dependent density functional theory and earlier time-periodic versions, and why the criticisms in a recent paper (Chem. Phys. Lett.…

cond-mat.mtrl-sci2007★ 26 cited

Time-dependent Density Functional calculation of e-H scattering

Meta van Faassen, Adam Wasserman, Eberhard Engel +2

Phase shifts for single-channel elastic electron-atom scattering are derived from time-dependent density functional theory. The H ion is placed in a spherical box, its discrete…

cond-mat.mtrl-sci2007★ 8 cited

Excited states from time-dependent density functional theory

Peter Elliott, Kieron Burke, Filipp Furche

Time-dependent density functional theory (TDDFT) is presently enjoying enormous popularity in quantum chemistry, as a useful tool for extracting electronic excited state energies.…

cond-mat.mtrl-sci2005★ 18 cited

The quantum defect: the true measure of time-dependent density-functional results for atoms

Meta van Faassen, Kieron Burke

Quantum defect theory is applied to (time-dependent) density-functional calculations of Rydberg series for closed shell atoms: He, Be, and Ne. The performance and behavior of such…

cond-mat.mtrl-sci2005★ 18 cited

Measuring the kernel of time-dependent density functional theory with X-ray absorption spectroscopy of 3d transition metals

A. Scherz, E. K. U. Gross, H. Appel +4

The 2p-3d core hole interaction in the L2,3 absorption spectra of the 3d transition metals is treated within time-dependent density functional theory (TDDFT). A simple three-level…

cond-mat.mtrl-sci2005★ 8 cited

Double-Pole Approximation in Time-Dependent Density Functional Theory

H. Appel, E. K. U. Gross, K. Burke

A simple approximate solution to the linear response equations of time-dependent density functional theory (TDDFT) is given. This extends the single-pole approximation (SPA) to two…

cond-mat.mtrl-sci2005★ 9 cited

Coordinate scaling in time-dependent current density functional theory

Maxime Dion, Kieron Burke

The coupling constant dependence is derived in time-dependent {\em current} density functional theory. The scaling relation can be used to check approximate functionals and in conj…

cond-mat.mtrl-sci2004★ 1 cited

Density functional theory of dissipative systems

Kieron Burke, Roberto Car, Ralph Gebauer

Time-dependent density functional theory is extended to include dissipative systems evolving under a master equation, providing a Hamiltonian treatment for molecular electronics. F…

cond-mat.mtrl-sci2002★ 123 cited

Current-Density Functional Theory of the Response of Solids

Neepa T. Maitra, Ivo Souza, Kieron Burke

The response of an extended periodic system to a homogeneous field (of wave-vector ) cannot be obtained from a time-dependent density functional theory (TDDFT) calculati…

cond-mat.mtrl-sci2002★ 6 cited

Scaling the spin densities separately in density functional theory

R. J. Magyar, T. K. Whittingham, K. Burke

Coordinate scaling of each spin density separately is considered in spin density functional theory. A virial theorem relates the spin-scaled correlation energy to the spin-scaled c…

cond-mat.mtrl-sci2000★ 72 cited

Initial-state dependence in time-dependent density functional theory

Neepa T. Maitra, Kieron Burke

Time-dependent density functionals in principle depend on the initial state of the system, but this is ignored in functional approximations presently in use. For one electron it is…