We provide an analytic expression particularly useful for the evaluation of the density of states in systems which can be mapped into multichannel interacting structures. By means of the Green's function formalism and the real-space renormalization procedure, we arrive at a closed formula and we show how it can be easily implemented for numerical calculations. The application to the case of a couple of interacting chains is presented.
Density of states of multichannel systems
FARCHIONI R;Grosso G
1999
Abstract
We provide an analytic expression particularly useful for the evaluation of the density of states in systems which can be mapped into multichannel interacting structures. By means of the Green's function formalism and the real-space renormalization procedure, we arrive at a closed formula and we show how it can be easily implemented for numerical calculations. The application to the case of a couple of interacting chains is presented.File in questo prodotto:
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