Electronic nearsightedness of matter:
the concept and some quantitative estimates.
Walter Kohn, University of California at Santa Barbara, USA
e-mail: hicks@mail.physics.ucsb.edu
Vendredi, 5 novembre 2004, Salle St Raphael 2-3, Bâtiment St.
Raphael, 3 rue Galilée, 94200 Ivry-sur-Seine
The concept of "nearsightedness" articulates, quantifies and limits a
common chemical consensus that covalent and metallic binding are local
quantum chemical phenomena. After a qualitative introduction,
preliminary
analytical and numerical results for simple models will be presented.