Università degli Studi di Roma 3 ArcA diA
Archivio Aperto di Ateneo
DSpace@Roma3

ArcAdiA >
Tipologia di Documenti >
A - Articolo su rivista >

Please use this identifier to cite or link to this item: http://hdl.handle.net/2307/76

Title: Extended Gutzwiller wavefunction for the Hubbard-Holstein model
Authors: Barone, Paolo
Raimondi, Roberto
Capone, Massimo
Castellani, Claudio
Fabrizio, Michele
Keywords: strongly correlated electron systems
lattice fermion models
polarons
electron-phonon interaction
Issue Date: 2007
Abstract: We introduce a new type of Gutzwiller variational wave function for correlated electrons coupled to phonons, able to treat on equal footing electronic and lattice degrees of freedom. We benchmark the wave function in the infinite-U Hubbard-Holstein model away from half-filling on a Bethe lattice, where we can directly compare with exact results by the Dynamical Mean-Field Theory. For this model, we find that variational results agree perfectly well with the exact ones. In particular the wave fun
...more
URI: http://hdl.handle.net/2307/76
DOI: 10.1209/0295-5075/79/47003
Appears in Collections:A - Articolo su rivista
Dipartimento di Fisica 'Edoardo Amaldi'

Files in This Item:

File Description SizeFormat
epl_barone.pdf171.89 kBAdobe PDF
Restrict Access. You can Request a copy!


This item is protected by original copyright

Recommend this item

SFX Query

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Università degli Studi RomaTre SBA - Sistema Bibliotecario di Ateneo ICT support by CINECA