Fermi edge singularities in the mesoscopic regime: Anderson orthogonality catastrophe

DOI to cite this document:: 10.5283/epub.9403

Hentschel, Martina ; Ullmo, Denis ; Baranger, Harold U.

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Date of publication of this fulltext: 18 Sep 2009 08:37

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Abstract

For generic mesoscopic systems, such as quantum dots or nanoparticles, we study the Anderson orthogonality catastrophe (AOC) and Fermi-edge singularities in photoabsorption spectra in a series of two papers. In the present paper we focus on AOC for a finite number of particles in discrete energy levels where, in contrast to the bulk situation, AOC is not complete. Moreover, fluctuations ...