The charge susceptibility and the specific heat of the 1D Hubbard model are calculated by means of the composite operator method for finite temperature as functions of filling. A large renormalization of the charge fluctuations appears as the system approaches the metal-insulator transition. © 1999 Elsevier Science B.V. All rights reserved.
Charge renormalization in the 1D Hubbard model
AVELLA, Adolfo;MANCINI, Ferdinando
1999
Abstract
The charge susceptibility and the specific heat of the 1D Hubbard model are calculated by means of the composite operator method for finite temperature as functions of filling. A large renormalization of the charge fluctuations appears as the system approaches the metal-insulator transition. © 1999 Elsevier Science B.V. All rights reserved.File in questo prodotto:
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