The problem of expanding the correlation functions into continued fractions is considered in the light of a Mori-type formalism. First, we examine the techniques available in the literature for extracting the parameters of the Mori chain from the moments; then, on the basis of physical considerations, we provide a new surprisingly simple and efficient technique and discuss its significance. Some examples are given to illustrate the elegance and the convenience of our procedure.
Autori interni: | |
Autori: | GRIGOLINI P; GROSSO G; PASTORI PARRAVICINI G; SPARPAGLIONE M |
Titolo: | CALCULATION OF RELAXATION FUNCTIONS - A NEW DEVELOPMENT WITHIN THE MORI FORMALISM |
Anno del prodotto: | 1983 |
Digital Object Identifier (DOI): | 10.1103/PhysRevB.27.7342 |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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