Difference between the quasiparticle and the Kohn-Sham-Fermi surfaces
- 15 February 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 37 (6) , 3128-3129
- https://doi.org/10.1103/physrevb.37.3128
Abstract
The question addressed is whether the Fermi surface calculated from the exact density-functional one-electron eigenvalues coincides with the ‘‘quasiparticle Fermi surface’’ calculated from the self-energy Σ(k,μ), where μ is the chemical potential. For the case of density-functional theory on a lattice this is shown not to be the case.Keywords
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