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Learn the fundamental principles of Density Functional Theory (DFT) through this comprehensive lecture by Prof. Stefano Baroni from the 2017 ICTP workshop. Explore the theoretical foundations of DFT starting with the Hohenberg-Kohn-Sham theory, which forms the cornerstone of modern electronic structure calculations. Master the variational principle and its application in determining ground-state electron densities and energies. Understand the Hellman-Feynman theorem and its crucial role in calculating forces and energy derivatives, essential for geometry optimization and molecular dynamics simulations. Gain practical insights into how these theoretical concepts translate into computational methods used in materials science and quantum chemistry research.
