Numéro
J. Phys. I France
Volume 4, Numéro 11, November 1994
Page(s) 1699 - 1703
DOI https://doi.org/10.1051/jp1:1994215
DOI: 10.1051/jp1:1994215
J. Phys. I France 4 (1994) 1699-1703

Impurity scattering in 1D ring of interacting electrons

Georges Bouzerar and Didier Poilblanc

Groupe de Physique Théorique, Laboratoire de Physique Quantique, Université Paul Sabatier, 31062 Toulouse, France


(Received 18 May 1994, accepted 28 July 1994)

Abstract
The stability of the 1D Luttinger liquid phase of interacting spinless particles ( t - V model) to an on-site diagonal disorder is studied by exact diagonalization of small 1D rings up to 22 sites. We discuss our numerical results in the light of the phase diagram predicted by the Renormalization Group analysis. In a finite range of attractive interactions (around $V/t \sim -0.5$) the metallic phase (with superconducting fluctuations) seems to be stable up to some small value of the disorder parameter. On the other hand, in the repulsive case, the impurity potential clearly leads to a strong localization of the particles.



© Les Editions de Physique 1994

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.