2003/11/30 by S. Kragset, Steinar Kragset, Asle Sudbø +3 · 2 citations
Materials Science · Physics and Astronomy · #Material Dynamics and Properties #Quantum and electron transport phenomena #Theoretical and Computational Physics #cond-mat.stat-mech #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.92.186403
published as Physical Review Letters, 92, 186403 (2004) · 4 pages, 2 figures. One figure removed, replaced by analytical results. Accepted for publication in Physical Review Letters
arxiv created 2004/03/18 · openalex publication_date 2004/05/05 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the scaling of the mean square dipole moment in a plasma with logarithmic interactions in a two- and three-dimensional systems. In both cases, we establish the existence of a low-temperature regime where the mean square dipole moment does not scale with system size and a high-temperature regime where it does scale with system size. Thus, there is a nonanalytic change in the polarizability of the system as a function of temperature and hence a metal-insulator transition in both cases. The relevance of this transition in three dimensions to quantum phase transitions in (2+1)-dimensional systems is briefly discussed.