Foundations of Density Functional Theory: Existence Theorems
The starting point of any discussion of DFT is the Hohenberg-Kohn (HK) theorem . It represents the most basic of a number of existence theorems which ensure that stationary many-particle systems can be characterized (fully) by the ground state density and closely related quantities.
KeywordsDensity Functional Theory Gauge Transformation Particle Number Variational Equation Ground State Energy
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