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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
Citation: 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 j
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URI: http://hdl.handle.net/2307/209
ISSN: 1550-235x
1098-0121
DOI: 10.1103/PhysRevB.48.11453
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Appears in Collections:A - Articolo su rivista
Dipartimento di Fisica 'Edoardo Amaldi'

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