Journal
ANNUAL REVIEW OF PHYSICAL CHEMISTRY, VOL 66
Volume 66, Issue -, Pages 283-304Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-physchem-040214-121420
Keywords
electronic structure; approximations; nonempiricism; semiclassics; warm dense matter; density functional theory
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This article is a rough, quirky overview of both the history and present state of the art of density functional theory. The field is so huge that no attempt to be comprehensive is made. We focus on the underlying exact theory, the origin of approximations, and the tension between empirical and nonempirical approaches. Many ideas are illustrated on the exchange energy and hole. Features unique to this article include how approximations can be systematically derived in a nonempirical fashion and a survey of warm dense matter.
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