32. Prof. John Perdew - Density Functionals, Symmetry Breaking, and Strong Correlation

[@gauravjoshi8194]

Thank you for sharing such an informative lecture. It has been genuinely helpful.

[@ElectrochemicalColloquium]

First part:
00:00 - Introduction
02:02 - Beginning of the talk
03:50 - Correlated Wavefunction Theory and DFT
16:38 - Accomplishments and Challenges of DFT
13:27 - Hohenberg-Kohn theorem
27:14 - The Kohn-Sham approach
40:46 - Summary for the introductory part
Q&A part 1:
42:43 - Q1: Ways to solve the many-body problem other than DFT?
44:54 - Q2: Kohn-Sham one-electron orbitals
46:30 - Q3: Predicting ground states through machine learning from DFT
Second part:
52:30 - More predictive density functions
54:49 - Construction of DFT approximations
1:00:45 - SCAN: Construction, successes and failures
1:14:59 - Symmetry breaking and strong correlations in DFT
1:28:57 - Spin symmetry breaking in singlet C2 molecule
1:37:11 - Conclusions (2nd)
Q&A part 2:
1:39:08 - Q4: Ab initio methods or DFT?
1:41:06 - Q5: Singlet C2
1:44:17 - Q6: Exact functionals
1:46:40 - Q7: Poles in TD-DFT
1:50:29 - Q8: Broken symmetry
1:51:24 - Q9: Double hybrids
1:54:26 - Q10: Get better metallic properties with SCAN
1:56:03 - Q11: Hydrogen bonds on a metal surface
1:58:32 - Q12: Superconductivity with DFT
2:00:39 - Q13: How DFT accuracy should be assessed?
2:02:22 - Q14: How should we compare DFT with experiments?
2:05:13 - Q15: What DFT accuracy are we pursuing?

[@marawanahmed7829]

I enjoy listening to those giants, thanks so much for sharing these videos, absolutely fabulous.

[@ElectrochemicalColloquium]

Glad you enjoyed it