X. Pan

activity

20022005

most citedThe constrained-search--variational method: application to the ground state of Helium atom

1 citations · 2 across the 5 of their papers we have counts for

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Showing 2003Show all

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physics.atom-ph2003★ 1 cited

On the Hylleraas Coordinates

Xiao-Yin Pan, Viraht Sahni, Lou Massa

The Hylleraas coordinates $s = r_{1} + r_{2}$ , $t = r_{1} - r_{2}$ , $u = ∣ r_{1} - r_{2} ∣$ are the natural coordinates for the determination of properties of the Helium atom, the po…

cond-mat.mtrl-sci2003

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…