Retrieving "Hartree Fock Exchange" from the archives

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1. Quantum Chemistry

   Linked via "HF exchange"

   | 2 | Generalized Gradient Approximation (GGA) | Depends on $\rho(\mathbf{r})$ and its gradient $\nabla\rho(\mathbf{r})$. | BLYP, PBE |
   | 3 | Meta-GGA | Depends on $\rho$, $\nabla\rho$, and the kinetic energy density $\tau(\mathbf{r})$. | TPSS |
   | 4 | Hybrid Functionals | Mixes exact HF exchange with DFT correlation terms. | B3LYP, PBE0 |
   | 5 | Double Hybrids | Includes explicit [configuration interaction](/entries/…