Title Electrostatic interpretation of the force $-\partial V_{xc}/\partial r$ connected with the exchange-correlation potential : direct relation to single-particle kinetic energy density in Be-atomElectrostatic interpretation of the force $-\partial V_{xc}/\partial r$ connected with the exchange-correlation potential : direct relation to single-particle kinetic energy density in Be-atom Author March, N.H. Geerlings, P. Sen, K.D. Faculty/Department Faculty of Sciences. Physics Research group Department of Physics Publication type article Publication 2004Amsterdam, 2004 Subject Physics Source (journal) Physics letters: A. - Amsterdam, 1967, currens Volume/pages 324(2004):1, p. 42-45 ISSN 0375-9601 ISI 000220548300007 Carrier E Target language English (eng) Full text (Publishers DOI) Affiliation University of Antwerp Abstract In a recent study by one of us [Phys. Rev. A 65 (2002) 034501], an electrostatic interpretation has been proposed for the force -partial derivativeV(xc)/partial derivativer associated with the exchange-correlation potential energy V-xc(r) in a spherical atom such as Be or Ne. Here, this proposal is employed to relate -partial derivativeV(xc)/partial derivativer directly to (a) the exact ground-state density rho(r) (e.g., from diffraction experiments or quantum Monte Carlo simulation) and its low-order derivatives, and (b) the single-particle kinetic energy density t(s)(r), calculated again from the exact p(r), for the example of the Be-atom. It would, of course, be important if this type of relation could be extended beyond a (1s)(2)(2s)(2) two-level single-particle configuration. (C) 2004 Elsevier B.V All rights reserved. E-info https://repository.uantwerpen.be/docman/iruaauth/54a87b/3015848.pdf http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000220548300007&DestLinkType=RelatedRecords&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000220548300007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000220548300007&DestLinkType=CitingArticles&DestApp=ALL_WOS&UsrCustomerID=ef845e08c439e550330acc77c7d2d848 Handle