A new quantum phase in two dimensions

1999/05/03 by Giuliano Benenti, Benenti, Giuliano, Xavier Waintal +4
Mathematics · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed Matter (cond-mat) #FOS: Physical sciences #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #cond-mat

paper · pdf · doi:10.48550/arxiv.cond-mat/9905028

5 pages, Latex, uses moriond.sty (included), Contribution to the Proceedings of the Rencontres de Moriond 1999

arxiv created 1999/05/03 · openalex publication_date 1999/05/03 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

For intermediate Coulomb energy to Fermi energy ratios r_s, spinless fermions in a random potential form a new quantum phase which is different from the Fermi glass and the Wigner crystal. From a numerical study of small clusters, we show that this phase is characterized by an ordered flow of enhanced persistent currents and occurs for r_s values where a metallic phase has been observed in two dimensions.

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