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NN10.03 - Systematic Derivation of Density Functional Approximations 
December 4, 2014   2:00pm - 2:30pm

Over the past few years, my group (with various collaborators) have shown how density functional approximations can be derived systematically, in terms of a very special type of semiclassical expansion, as first pointed out by Lieb and Simon 41 years ago. I will explain how this expansion works, show how many of the most useful approximations can be understood (and even derived), and report on recent progress.

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