Thursday, September 03, 200910:00 AM - 11:00 AMCNLS Conference Room (TA-3, Bldg 1690)|
Interpreting Quantum Density Functional Theory
Paul LammertPennsylvania State University
This talk is a look at the foundations of density functional theory from
an outsider's perspective --- mathematical, as well as philosophical, in a sense.
Starting from an appealing formulation with some thermodynamic parallels,
we examine natural basic questions of existence and well-behavedness.
There are real difficulties, in principle, yet DFT as actually practiced
does not reflect them. Some tinkering with the interpretation, namely
coarse-graining, is suggested to give a mathematical theory which is
provably well-behaved, and possibly more commensurate with actual practice.
Host: Cristiano Nisoli