Electron spectra close to a metal-to-insulator transition

Michał Karski, Carsten Raas, and Götz S. Uhrig
Phys. Rev. B 72, 113110 – Published 27 September 2005

Abstract

A high-resolution investigation of the electron spectra close to the metal-to-insulator transition in dynamic mean-field theory is presented. An all-numerical, consistent confirmation of a smooth transition at zero temperature is provided. In particular, the separation of energy scales is verified. Unexpectedly, sharp peaks at the inner Hubbard band edges occur in the metallic regime. They are signatures of the important interaction between single-particle excitations and collective modes.

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  • Received 6 July 2005

DOI:https://doi.org/10.1103/PhysRevB.72.113110

©2005 American Physical Society

Authors & Affiliations

Michał Karski1, Carsten Raas2, and Götz S. Uhrig2

  • 1Institut für Angewandte Physik der Universität Bonn, 53115 Bonn, Germany
  • 2Theoretische Physik FR 7.1, Universität des Saarlandes, 66123 Saarbrücken, Germany

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Issue

Vol. 72, Iss. 11 — 15 September 2005

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