Volume 88, Number 2, October 2009
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||03 November 2009|
Internal chaos in an open quantum system: From Ericson to conductance fluctuations
Instituto de Física, Universidad Autónoma de Puebla - Apartado Postal J-48, 72570 Puebla, Mexico
2 NSCL and Department of Physics and Astronomy, Michigan State University - East Lansing, MI 48824-1321, USA
3 Physics Department, Tulane University - New Orleans, LA 70118, USA
4 Theoretical Division and CNLS, Los Alamos National Laboratory - Los Alamos, NM 87545, USA
Corresponding author: firstname.lastname@example.org
Accepted: 1 October 2009
The model of an open Fermi system is used for studying the interplay of intrinsic chaos and irreversible decay into open continuum channels. Two versions of the model are characterized by one-body chaos coming from disorder or by many-body chaos due to the inter-particle interactions. The continuum coupling is described by the effective non-Hermitian Hamiltonian. Our main interest is in specific correlations of cross-sections for various channels in dependence on the coupling strength and degree of internal chaos. The results are generic and refer to common features of various mesoscopic objects including conductance fluctuations and resonance nuclear reactions.
PACS: 73.23.-b – Electronic transport in mesoscopic systems / 24.60.Lz – Chaos in nuclear systems / 21.60.-n – Nuclear structure models and methods
© EPLA, 2009
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