Superstring representation of Hubbard model
نویسنده
چکیده
The new method of investigation of strongly correlated electronic system is presented. Using this method we have derived the superstring from 2D Hubbard model. The novel expression for generalized supercoherent state has been calculated. 1. Nowadays the Hubbard model attracts considerable attention. This model is incorporated in several profound theoretical projects, proposed in [1] for example. These projects lead to deep interaction of ideas and methods of modern field theory and solid state physics [2]. In this article we present the new approach to the strongly correlating electronic systems. Using the functional integral we have derived the superstring from 2-D Hubbard model. Essential ingredient of this approach is the using of the supercoherent state, which exact expression was calculated. 2. Let us recall the formalism developed in [3] for systems with coulomb interactions.The system under consideration is described by Hubbard model:
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