Physics – Condensed Matter – Materials Science
Scientific paper
2012-03-08
Physics
Condensed Matter
Materials Science
15 pages
Scientific paper
The central quantity of density functional theory is the so-called exchange-correlation functional. This quantity encompasses all non-trivial many-body effects and has to be approximated in any practical application of the theory. For the past 50 years, hundreds of such approximations have appeared, with more or less success in the community. Here, we present a library that contains routines to evaluate many of these functionals (around 180) and their derivatives.
Burnus Tobias
Marques Miguel A. L.
Oliveira Micael J. T.
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