The Hartree-Fock ground state of the three-dimensional electron gas

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dc.creatorZhang, Shiwei
dc.creatorCeperley, D. M.
dc.date2007-12-07
dc.date.accessioned2026-07-07T09:44:05Z
dc.date.available2026-07-07T09:44:05Z
dc.descriptionIn 1962, Overhauser showed that within Hartree-Fock (HF) the electron gas is unstable to a spin density wave (SDW) instability. Determining the true HF ground state has remained a challenge. Using numerical calculations for finite systems and analytic techniques, we study the HF ground state of the 3D electron gas. At high density, we find broken spin symmetry states with a nearly constant charge density. Unlike previously discussed spin wave states, the observed wave vector of the SDW is smaller than $2 k_F$. The broken-symmetry state originates from pairing instabilities at the Fermi surface, a model for which is proposed.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/0712.1194
dc.identifierhttp://arxiv.org/abs/0712.1194
dc.identifierPhys. Rev. Lett. 100, 236404 (2008)
dc.identifierdoi:10.1103/PhysRevLett.100.236404
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162742
dc.subjectStrongly Correlated Electrons
dc.subjectOther Condensed Matter
dc.titleThe Hartree-Fock ground state of the three-dimensional electron gas
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