Local SIC: Difference between revisions

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== Local SIC Method
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<math>
    E^{PZSIC-DFA} = E^{DFA}[\rho_{\uparrow},\rho_{\downarrow}]- \sum_i \left \{ U^{}[\rho_{i\sigma}]+E_{XC}^{DFA}[\rho_{i\sigma},0]\right\}.
</math>
 
 
<math>
    E_{XC}^{LSIC-DFA} = E_{XC}^{DFA}[\rho_{\uparrow},\rho_{\downarrow}]
                      - \sum_{i,\sigma}^{occ}
    \left \{ U^{LSIC}[\rho_{i,\sigma}]
    + E_{XC}^{LSIC}[\rho_{i,\sigma},0] \right \}
</math>
 
where
 
<math>
    U^{LSIC}[\rho_{i,\sigma}] =
      \frac{1}{2} \int d\vec{r}\,
      \{z_{\sigma}(\vec{r})\}^k \,
      \rho_{i,\sigma}(\vec{r})
      \int d\vec{r'}\, \frac{\rho_{i,\sigma}(\vec{r'})}{\vert \vec{r}-\vec{r'}\vert}
</math>
 
<math>
    E_{XC}^{LSIC}[\rho_{i,\sigma},0]
    =  \int d\vec{r}\,  \{z_{\sigma}(\vec{r})\}^k
    \rho_{i,\sigma} (\vec{r}) \epsilon_{XC}^{DFA}([\rho_{i,\sigma},0],\vec{r}).
</math>

Revision as of 19:03, 12 August 2022

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EPZSIC−DFA=EDFA[ρ↑,ρ↓]−∑i{U[ρiσ]+EXCDFA[ρiσ,0]}.


EXCLSIC−DFA=EXCDFA[ρ↑,ρ↓]−∑i,σocc{ULSIC[ρi,σ]+EXCLSIC[ρi,σ,0]}

where

ULSIC[ρi,σ]=12∫dr→{zσ(r→)}kρi,σ(r→)∫dr′→ρi,σ(r′→)|r→−r′→|

EXCLSIC[ρi,σ,0]=∫dr→{zσ(r→)}kρi,σ(r→)ϵXCDFA([ρi,σ,0],r→).