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http://hdl.handle.net/2307/68| Title: | Variational approaches for electron-phonon interaction in strongly correlated systems | Authors: | Barone, Paolo | 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. | URI: | http://hdl.handle.net/2307/68 |
| Appears in Collections: | X_Dipartimento di Fisica 'Edoardo Amaldi' T - Tesi di dottorato |
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| File | Description | Size | Format | |
|---|---|---|---|---|
| barone.pdf | 1.59 MB | Adobe PDF | View/Open |
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