Electroneutrality and the Friedel sum rule in a Luttinger liquid
arXiv:cond-mat/9709047 · doi:10.1103/PhysRevLett.79.3463
Abstract
Screening in one-dimensional metals is studied for arbitrary electron-electron interactions. It is shown that for finite-range interactions (Luttinger liquid) electroneutrality is violated. This apparent inconsistency can be traced to the presence of external screening gates responsible for the effectively short-ranged Coulomb interactions. We also draw attention to the breakdown of linear screening for wavevectors close to 2 K_f.
4 pages REVTeX, incl one figure, to appear in Phys.Rev.Lett
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