We propose a theoretical framework to describe the ladder systems. The N-chain Hubbard model has been studied within the composite operator method. In this scheme of calculations the single-particle Green's function for any number of coupled chains is obtained by solving self-consistently a system of integral equations. © 1999 Elsevier Science B.V. All rights reserved.
The N-chain Hubbard model in the composite operator method
AVELLA, Adolfo;MANCINI, Ferdinando;
1999
Abstract
We propose a theoretical framework to describe the ladder systems. The N-chain Hubbard model has been studied within the composite operator method. In this scheme of calculations the single-particle Green's function for any number of coupled chains is obtained by solving self-consistently a system of integral equations. © 1999 Elsevier Science B.V. All rights reserved.File in questo prodotto:
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