Hartree-fock ground state of the three-dimensional electron gas

Shiwei Zhang, D. M. Ceperley

Research output: Contribution to journalArticlepeer-review

Abstract

In 1962, Overhauser showed that within Hartree-Fock (HF) the electron gas is unstable to a spin-density wave state. Determining the true HF ground state has remained a challenge. Using numerical calculations for finite systems and analytic techniques, we study the unrestricted HF ground state of the three-dimensional 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 spin-density wave is smaller than 2kF. The broken-symmetry state originates from pairing instabilities at the Fermi surface, a model for which is proposed.

Original languageEnglish (US)
Article number236404
JournalPhysical review letters
Volume100
Issue number23
DOIs
StatePublished - Jun 13 2008

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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