95 citations · 176 across the 3 of their papers we have counts for
3 papers
cond-mat.mtrl-sci2002★ 38 cited
Degeneracy in Density Functional Theory: Topology in v- and n-Space
C. A. Ullrich, W. Kohn
This paper clarifies the topology of the mapping between v- and n-space in fermionic systems. Density manifolds corresponding to degeneracies g=1 and g>1 are shown to have the same…
cond-mat.mtrl-sci1999★ 43 cited
Symmetry of the Atomic Electron Density in Hartree, Hartree-Fock, and Density Functional Theory
H. A. Fertig, W. Kohn
The density of an atom in a state of well-defined angular momentum has a specific finite spherical harmonic content, without and with interactions. Approximate single-particle sche…
cond-mat1997★ 95 cited
Time Dependent Floquet Theory and Absence of an Adiabatic Limit
Daniel W. Hone, Roland Ketzmerick, Walter Kohn
Quantum systems subject to time periodic fields of finite amplitude, lambda, have conventionally been handled either by low order perturbation theory, for lambda not too large, or…