Spin-resolved second-order correlation energy of the two-dimensional uniform electron gas

Details Spin-resolved second-order correlation energy of the two-dimensional uniform electron gas Spin-resolved second-order correlation energy of the two-dimensional uniform electron gas

2003-12-04

arxiv.org/abs/cond-mat/0312146v1

Physics

Condensed Matter

Materials Science

5 pages, 2 figures

Scientific paper

10.1103/PhysRevB.70.073101

For the two-dimensional electron gas, the exact high-density limit of the correlation energy is evaluated here numerically for all values of the spin polarization. The result is spin-resolved into $\uparrow\uparrow$, $\uparrow\downarrow$, and $\downarrow\downarrow$ contributions and parametrized analytically. Interaction-strength interpolation yields a simple model (LSD) for the correlation energy at finite densities.

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