Similarities and differences

[Joachim Scheerlinck]

while the wikipedia page also stresses the external potential being the unique functional of the ground state density, it’s more written from the electrons point of view. Even more so, the wikipedia page relates the total energy to the first Hohenberg-Kohn theorem, by defining the HK functional F[n]. It even goes a bit further than that by saying that the spectrum of the Hamiltonian is also a unique functional of the ground state charge density.

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