Overhauser instability
= Overhauser instability
{c}
The uniform paramagnetic three-dimensional electron-gas determinant is unstable within Hartree-Fock theory to a spin-density-wave deformation, even at high density. Comparing only spatially uniform polarized and unpolarized determinants therefore does not find the unrestricted Hartree-Fock <ground state>.<Spin Density Waves in an Electron Gas by A. W. Overhauser>[abstract and p. 1437]{ref}