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Electron spectra close to a metal-to-insulator transition

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 نشر من قبل Carsten Raas
 تاريخ النشر 2005
  مجال البحث فيزياء
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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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