40 citations · 139 across the 17 of their papers we have counts for
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Asymptotic near nucleus structure of the electron-interaction potential in local effective potential theories
Zhixin Qian, Viraht Sahni
In local effective potential theories of electronic structure, the electron correlations due to the Pauli exclusion principle, Coulomb repulsion, and correlation-kinetic effects, a…
Coalescence constraints of many-body systems in one dimension
Xiao-Yin Pan, Viraht Sahni
For one-dimensional many-body systems interacting via the \textit{Coulomb force} and with \textit{arbitrary} external potential energy, we derive (\textit{i}) the \textit{node coal…
Quantal Density Functional Theory of the Hydrogen Molecule
Xiao-Yin Pan, Viraht Sahni
In this paper we perform a Quantal Density Functional Theory (Q-DFT) study of the Hydrogen molecule in its ground state.
Integral Coalescence Conditions In Dimension Space
Xiao-Yin Pan, Viraht Sahni
We have derived the integral form of the cusp and node coalescence conditions satisfied by the wavefunction at the coalescence of two charged particles in dimension spac…
Quantal Density Functional Theory of Degenerate States
Viraht Sahni, Xiao-Yin Pan
The treatment of degenerate states within Kohn-Sham density functional theory (KS-DFT) is a problem of longstanding interest. We propose a solution to this mapping from the interac…
Corollary to the Hohenberg-Kohn Theorem
Xiao-Yin Pan, Viraht Sahni
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…