Quantum Coulomb Glass: Anderson Localization in an Interacting System

Author

Thomas Vojta, Missouri University of Science and TechnologyFollow
Frank Epperlein
Michael Schreiber

Abstract

The quantum Coulomb glass model describes disordered interacting electrons on the insulating side of a metal-insulator transition. By taking quantum fluctuations into account it can describe not only the localized limit but also the weakly localized regime. We discuss several possibilities to generalize the concept of Anderson localization to interacting electron systems such as the quantum Coulomb glass and define criteria for localization. The corresponding physical quantities are calculated by numerically exact diagonalization. The results indicate that single-particle excitations close to the Fermi energy become more strongly localized under the influence of interaction.

Recommended Citation

T. Vojta et al., "Quantum Coulomb Glass: Anderson Localization in an Interacting System," physica status solidi (b), vol. 205, no. 1, pp. 53 - 59, Wiley-VCH Verlag, Jan 1998.

The definitive version is available at https://doi.org/10.1002/(SICI)1521-3951(199801)205:1<53::AID-PSSB53>3.0.CO;2-I

Department(s)

Physics

International Standard Serial Number (ISSN)

0370-1972

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1998 Wiley-VCH Verlag, All rights reserved.

Publication Date

01 Jan 1998