Fermi-Edge Singularities in the Mesoscopic X-Ray Edge Problem

dc.creatorHentschel, Martina
dc.creatorUllmo, Denis
dc.creatorBaranger, Harold U.
dc.date2004-02-06
dc.date2004-10-28
dc.date.accessioned2026-07-07T02:56:22Z
dc.date.available2026-07-07T02:56:22Z
dc.descriptionWe study the x-ray edge problem for a chaotic quantum dot or nanoparticle displaying mesoscopic fluctuations. In the bulk, x-ray physics is known to produce deviations from the naively expected photoabsorption cross section in the form of a peaked or rounded edge. For a coherent system with chaotic dynamics, we find substantial changes and in particular that a photoabsorption cross section showing a rounded edge in the bulk will change to a slightly peaked edge on average as the system size is reduced to a mesoscopic (coherent) scale.
dc.description4 pages, 3 figures, final version as published in PRL
dc.identifierhttps://arxiv.org/abs/cond-mat/0402207
dc.identifierhttp://arxiv.org/abs/cond-mat/0402207
dc.identifierPhys. Rev. Lett. 93, 176807 (2004)
dc.identifierdoi:10.1103/PhysRevLett.93.176807
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/23293
dc.subjectMesoscale and Nanoscale Physics
dc.titleFermi-Edge Singularities in the Mesoscopic X-Ray Edge Problem
dc.typetext

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