The N-Chain Hubbard model in the Composite Operator Method
A. Avella, F. Mancini, M. M. Sanchez, R. Sridhar
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.
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