Fermion pair correlation function exchange hole ( s = s' ) (Pauli - PowerPoint PPT Presentation

Jellium model - Hartree-Fock approximation Jellium model with interactions charge neutrality kinetic electron-electron ion-ion electron-ion interaction interaction energy interaction Coulomb interaction field operator ''free electrons''

Jellium model - Hartree-Fock approximation variational energy groundstate free electron gas kinetic energy density: variational parameter uniform electron density electron-ion ion-ion

Jellium model - Hartree-Fock approximation electron-electron interaction Fermion pair correlation function exchange hole ( s = s' ) (Pauli exclusion principle) radius ~ k F -1

Jellium model - Hartree-Fock approximation electro-static energy uniform charge neutral system variational ground state energy stable density lattice a ≈ 4˚ d ≈ 2 . 5˚ A A constant comparison with alkali metals element Li Na K 3.22 3.96 4.86