Content deleted Content added
Citation bot (talk | contribs) m Alter: pages, title. Add: issue. Removed parameters. Formatted dashes. | You can use this bot yourself. Report bugs here. | User-activated. |
m Make it clear that the electron density depends on the position |
||
Line 3:
In general, for a spin-unpolarized system, a local-density approximation for the exchange-correlation energy is written as
:<math>E_{xc}^{\mathrm{LDA}}[\rho] = \int \rho(\mathbf{r})\epsilon_{xc}(\rho(\mathbf{r}))\ \mathrm{d}\mathbf{r}\ ,</math>
where ''ρ'' is the [[electronic density]] and ''ε''<sub>xc</sub> is the exchange-correlation energy per particle of a [[homogeneous electron gas]] of charge density ''ρ''. The exchange-correlation energy is decomposed into exchange and correlation terms linearly,
| |||