<br/>DFT is an extraordinary success story. More than 30,000 scientific papers are published each year using DFT calculations, which have yielded the world's best catalyst for the Haber-Bosch process and the world's highest temperature superconductor (hydrogen sulfide under pressure). But the importance of developing and understanding the underlying theory often seems lost in this sea of successful (and sometimes not so successful) applications. I will report some recent developments I have been involved in, possibly including machine-learned density functionals, density-corrected DFT, finite temperature DFT for warm dense matter, wavelet basis sets for ab initio calculations, or ensemble DFT. Whatever the area, I will emphasize the importance of the underlying theory. This talk is a homage to Bob, John, and Mel.<br/><br/>

Importance of theory in density functional theory

255th National Meeting (2018)

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