Title 



The key role of electronnuclear potential energy in determining the groundstate energy of inhomogeneous electron liquids in both real and model atoms
 
Author 



 
Abstract 



Recent density functional theory (DFT) work of Gl and March (GM) on the groundstate energy E of a two electron model atom (like He but with inverse square law interparticle repulsion) related E to the electron nuclear potential energy Uen by E = d1=2_Uen. Also the model of GM satisfies E = 2Uen, but now with harmonic confinement. While modern non relativistic DFT requires numerical treatment of real atoms, in the exact limit of DFT at large Z, the Thomas Fermi (TF) theory is regained, where much analytical work can be done. This yields, as Z > 1, the non relativistic energy of such neutral atoms as E = d3=7_Uen. The correlated   
Language 



English
 
Source (journal) 



Physics and chemistry of liquids.  London  
Publication 



London : 2014
 
ISSN 



00319104
 
Volume/pages 



52:4(2014), p. 576582
 
ISI 



000337604100010
 
Full text (Publisher's DOI) 


  
