We discuss an approach for studying the properties of mesoscopic systems, where discrete and continuum parts of the spectrum are equally important. The approach can be applied (i) to stable heavy nuclei and complex atoms near the continuum threshold, (ii) to nuclei far from the region of nuclear stability, both of the regions being of great current interest, and (iii) to mesoscopic devices with interacting electrons. The goal is to develop a new consistent version of the continuum shell model that simultaneously takes into account strong interaction between fermions and coupling to the continuum. Main attention is paid to the formation of compound resonances, their statistical properties, and correlations of the cross sections. We study the Ericson fluctuations of overlapping resonances and show that the continuum shell model nicely describes universal properties of the conductance fluctuations.

Celardo, G., Izrailev, F., Sorathia, S., Berman, G., Zelevinsky, V., Continuum shell model: From Ericson to conductance fluctuations, <<AIP CONFERENCE PROCEEDINGS>>, 2008; 995 (Ottobre): 75-84. [doi:10.1063/1.2915620] [http://hdl.handle.net/10807/60287]

Continuum shell model: From Ericson to conductance fluctuations

Celardo, Giuseppe;
2008

Abstract

We discuss an approach for studying the properties of mesoscopic systems, where discrete and continuum parts of the spectrum are equally important. The approach can be applied (i) to stable heavy nuclei and complex atoms near the continuum threshold, (ii) to nuclei far from the region of nuclear stability, both of the regions being of great current interest, and (iii) to mesoscopic devices with interacting electrons. The goal is to develop a new consistent version of the continuum shell model that simultaneously takes into account strong interaction between fermions and coupling to the continuum. Main attention is paid to the formation of compound resonances, their statistical properties, and correlations of the cross sections. We study the Ericson fluctuations of overlapping resonances and show that the continuum shell model nicely describes universal properties of the conductance fluctuations.
Inglese
Celardo, G., Izrailev, F., Sorathia, S., Berman, G., Zelevinsky, V., Continuum shell model: From Ericson to conductance fluctuations, <<AIP CONFERENCE PROCEEDINGS>>, 2008; 995 (Ottobre): 75-84. [doi:10.1063/1.2915620] [http://hdl.handle.net/10807/60287]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/60287
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