השוואת שיטות

	תיאוריית פונקציונל הצפיפות	שיטת Korringa-Kohn-Rostoker (KKR)
תחום	מחשוב קוונטי	מחשוב קוונטי
משפחה	Machine learning	Machine learning
שנת המקור	1965	1947
הוגה השיטה	Walter Kohn	Joop Korringa and Walter Kohn
סוג	Electronic structure method	Electronic structure method
מקור מכונן	Kohn, W., Sham, L. J. (1965). Self-consistent equations including exchange and correlation effects. Physical Review, 140, A1133–A1138.	Korringa, J. (1947). On the calculation of the energy of a Bloch wave in a metal. Physica, 13, 392–400.
כינויים	DFT, Kohn-Sham equations	KKR, multiple scattering
קשורות	4	3
תקציר	Density Functional Theory (DFT) is a computational method for determining the properties of materials and molecules by modeling the ground state electron density. Developed by Walter Kohn and Lu Jeu Sham in the 1960s, DFT reduces the complexity of quantum chemistry from tracking individual electron coordinates to optimizing the total electron density, enabling efficient simulations of large molecular and condensed-matter systems.	The Korringa-Kohn-Rostoker (KKR) method is a powerful multiple-scattering approach for calculating electronic band structures and properties of periodic and disordered solids. Developed in the late 1940s, KKR treats electrons as scattering from atomic potentials in a muffin-tin geometry, enabling efficient calculations for both crystalline and amorphous systems.