JAHN-TELLER DEFORMATIONS OF JELLIUM SLICES

Equilibrium geometries of quasi two-dimensional jellium systems are ca lculated in the local density approximation, closely following the ''U ltimate Jellium Model'' of [1]. The background charge is assumed to be fully deformable in a layer between two parallel planes, whereas the wave functions in the direction perpendicular to such a ''Jellium slic e'' are confined to their ground state. Like for jellium clusters in t hree dimensions [1], we find that for various system sizes, a trend to wards a breaking of axial and inversion symmetries is observable.