Corollary to the Hohenberg-Kohn Theorem
arXiv:cond-mat/0209688
Abstract
In this paper we construct such a set of `degenerate' Hamiltonians , which differ by an `intrinsic' constant but represent different physical systems yet possess the same ground state density. . Thus, although the proof of Hohenberg-Kohn (HK) theorem is independent of whether the constant is additive or intrinsic, its applicability is restricted to excluding the case of the latter. This constitutes the corollary to the theorem.The corollary has also been extended to the time-dependent version of the HK theorem.
14 pages, 1 figures. changes made