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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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oai:CiteSeerX.psu:10.1.1.242.7295Last time updated on 10/22/2014

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