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Title: Variational approaches for electron-phonon interaction in strongly correlated systems
Authors: Barone, Paolo
metadata.dc.contributor.advisor: Raimondi, Roberto
metadata.dc.contributor.referee: Ciuchi, Sergio
Keywords: electron-phonon interaction, strongly-correlated systems
Interazione elettrone-fotone, Sistemi fortemente correlati
Issue Date: 2006
Publisher: Università degli Studi Roma Tre
Abstract: In this work we present two variational approaches to the electron-phonon interaction in strongly correlated systems. The first approach that we discussed focuses mainly on the first aspect of the problem, whereas the second one completed the picture including a faithful description of phonon properties. We tested both in the paramagnetic sector of the Hubbard-Holstein model at T = 0, focusing on ground-state properties of both electrons and phonons.
Appears in Collections:X_Dipartimento di Fisica 'Edoardo Amaldi'
T - Tesi di dottorato

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