Effective Single-Particle Equations
Let us return to the simplest situation considered so far, i.e. to a Hamiltonian of type (2.1) with a non-degenerate ground state. For this system the Hohenberg-Kohn theorem states that knowledge of the ground state density is sufficient to determine all ground state observables.
KeywordsFermi Surface Ground State Energy Ground State Density Ground State Wavefunction Noninteracting System
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