Please use this identifier to cite or link to this item:
http://hdl.handle.net/2307/209
Title: | Lower and upper Hubbard bands: A slave-boson treatment | Authors: | Raimondi, Roberto Castellani, Claudio |
Keywords: | Strongly correlated electron systems Hubbard model metal-insulator transition slave-boson approach Fermi-liquid |
Issue Date: | 1993 | Publisher: | American Physical Society | Source: | 10 | Abstract: | We analyze the single-particle spectral density and the optical conductivity of the single-band Hubbard model in the insulating Mott phase within the slave-boson technique. We show that the boson fluctuations around the saddle-point solution build up the lower and upper Hubbard bands and give rise to the optical conductivity which describes transitions between these incoherent bands. We find that the Brinkman-Rice metal-insulator transition is characterized by the simultaneous vanishing of the jump in the chemical potential, the single-particle spectral density gap, and the optical gap. | URI: | http://hdl.handle.net/2307/209 | ISSN: | 1550-235x 1098-0121 |
DOI: | 10.1103/PhysRevB.48.11453 | metadata.dc.identifier.url: | http://link.aps.org/doi/10.1103/PhysRevB.48.11453 |
Appears in Collections: | A - Articolo su rivista X_Dipartimento di Fisica 'Edoardo Amaldi' |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
hub.pdf | 130.63 kB | Adobe PDF | Request a copy |
Page view(s)
62
Last Week
0
0
Last month
0
0
checked on Apr 26, 2024
Download(s)
9
checked on Apr 26, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.