956 citations · 6.7k across the 107 of their papers we have counts for
5 papers · 2 filters
Density-Matrix-Power Functional: Performance for Finite Systems and the Homogeneous Electron Gas
N. N. Lathiotakis, S. Sharma, J. K. Dewhurst +3
An exchange correlation energy functional involving fractional power of the one-body reduced density matrix [Phys. Rev. B {\bf 78}, 201103 (2008)] is applied to finite systems and…
Correlation energy of two-dimensional systems: Toward non-empirical and universal modeling
S. Pittalis, E. Rasanen, C. Proetto +1
The capability of density-functional theory to deal with the ground-state of strongly correlated low-dimensional systems, such as semiconductor quantum dots, depends on the accurac…
A functional of the one-body-reduced density matrix derived from the homogeneous electron gas: Performance for finite systems
N. N. Lathiotakis, N. Helbig, A. Zacarias +1
An approximation for the exchange-correlation energy of reduced-density-matrix-functional theory was recently derived from a study of the homogeneous electron gas (N.N. Lathiotakis…
Electronic exchange in quantum rings
E. Rasanen, S. Pittalis, C. R. Proetto +1
Quantum rings can be characterized by a specific radius and ring width. For this rich class of physical systems, an accurate approximation for the exchange-hole potential and thus…
Electron localization function for two-dimensional systems
E. Rasanen, A. Castro, E. K. U. Gross
The concept of the electron localization function (ELF) is extended to two-dimensional (2D) electron systems. We show that the topological properties of the ELF in 2D are considera…